Publisher: AIP   (Total: 27 journals)   [Sort by number of followers]

Showing 1 - 27 of 27 Journals sorted alphabetically
Acoustics Today     Hybrid Journal   (Followers: 8)
AIP Advances     Open Access   (Followers: 11, SJR: 0.472, CiteScore: 1)
AIP Conference Proceedings     Full-text available via subscription   (Followers: 4)
American J. of Physics     Full-text available via subscription   (Followers: 54, SJR: 0.456, CiteScore: 1)
APL Bioengineering     Open Access  
APL Materials     Open Access   (Followers: 15, SJR: 1.63, CiteScore: 4)
APL Photonics     Open Access   (Followers: 1)
Applied Physics Letters     Hybrid Journal   (Followers: 43, SJR: 1.382, CiteScore: 3)
Applied Physics Reviews     Hybrid Journal   (Followers: 8, SJR: 4.156, CiteScore: 12)
Biointerphases     Open Access   (Followers: 1, SJR: 0.558, CiteScore: 2)
Biomicrofluidics     Open Access   (Followers: 6, SJR: 0.592, CiteScore: 2)
Chaos : An Interdisciplinary J. of Nonlinear Science     Hybrid Journal   (Followers: 3, SJR: 0.716, CiteScore: 2)
Chinese J. of Chemical Physics     Hybrid Journal   (Followers: 1, SJR: 0.24, CiteScore: 1)
J. of Applied Physics     Hybrid Journal   (Followers: 79, SJR: 0.739, CiteScore: 2)
J. of Chemical Physics     Hybrid Journal   (Followers: 36, SJR: 1.252, CiteScore: 2)
J. of Laser Applications     Full-text available via subscription   (Followers: 15, SJR: 0.741, CiteScore: 2)
J. of Mathematical Physics     Hybrid Journal   (Followers: 24, SJR: 0.644, CiteScore: 1)
J. of Physical and Chemical Reference Data     Hybrid Journal   (Followers: 5, SJR: 1.046, CiteScore: 3)
J. of Renewable and Sustainable Energy     Hybrid Journal   (Followers: 13, SJR: 0.44, CiteScore: 1)
Low Temperature Physics     Hybrid Journal   (Followers: 6, SJR: 0.264, CiteScore: 1)
Physics of Fluids     Hybrid Journal   (Followers: 43, SJR: 1.19, CiteScore: 3)
Physics of Plasmas     Hybrid Journal   (Followers: 9, SJR: 0.576, CiteScore: 1)
Physics Today     Hybrid Journal   (Followers: 83, SJR: 0.66, CiteScore: 1)
Review of Scientific Instruments     Hybrid Journal   (Followers: 21, SJR: 0.585, CiteScore: 1)
Scilight     Full-text available via subscription  
Structural Dynamics     Open Access   (Followers: 7, SJR: 1.625, CiteScore: 4)
Surface Science Spectra     Hybrid Journal   (Followers: 1, SJR: 0.416, CiteScore: 1)
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Low Temperature Physics
Journal Prestige (SJR): 0.264
Citation Impact (citeScore): 1
Number of Followers: 6  
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1063-777X - ISSN (Online) 1090-6517
Published by AIP Homepage  [27 journals]
  • Critical phenomenon of vortex motion in superconductors: Vortex
           instability and flux pinning
    • Authors: A. Leo, A. Nigro, G. Grimaldi
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 375-378, April 2020.
      We have studied vortex dynamics in superconducting materials at very high vortex velocities as a function of the applied magnetic field. High velocity vortex dynamics can become critical, so that an instability occurs, leading the system to quench abruptly to the normal state. The presence of pinning mechanisms in all superconductors not only is able to foster high critical currents but it can strongly influence vortex flow, thus determining a different behavior of the critical vortex velocity v*. The magnetic field dependence of v* is extremely sensitive to the type of material pinning, and this is crucial for an applicative point of view, since vortex motion approaching v* means a dissipative flux flow state which will probably end with a flux flow instability. If it is possible to predict these critical parameters, than it will be easier to control those critical phenomena. Although a fully theoretical model of flux flow instability in the presence of pinning is still lacking, a phenomenological approach has been recently proposed for the hot-electron vortex flow instability. Here we present a successful example of perfect correspondence between experiment and theoretical approach in the case of Mo3Ge thin films with and without geometrical pinning barriers.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:42:04Z
  • Ultrathin superconducting NbRe microstrips with hysteretic voltage-current
    • Authors: C. Cirillo, M. Caputo, L. Parlato, M. Ejrnaes, D. Salvoni, R. Cristiano, G. P. Pepe, C. Attanasio
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 379-382, April 2020.
      Ultrathin microstrips based on polycrystalline NbRe films were investigated in order to preliminarily test the suitability of this material for the realization of superconducting single-photon detectors. The voltage-current characteristics measured on these samples show clear hysteresis. This is a fundamental ingredient for investigating single-photon detection as well as single vortex fluctuation phenomena in 2D NbRe-based devices.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:42:03Z
  • Electron-electron and electron-phonon relaxation in metals excited by
           optical pulse
    • Authors: V. V. Kabanov
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 414-419, April 2020.
      A short overview of theoretical models for the description of the relaxation processes in metals excited by a short laser pulse is presented. The main effort is given to description of different processes which are taking place after absorption of the laser pulse. Widely used two-temperature model is discussed and the conditions of applicability of this model are identified. Various approaches for solving the Boltzmann kinetic equations are discussed. It is identified that in the case of low excitation limit the relaxation is determined by the emission of phonons by photoexcited electrons. The possibility to obtain the value of the electron phonon coupling constant from experiments is discussed.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:42:02Z
  • Vortex generation in a superfluid gas of dipolar chains in crossed
           electric and magnetic fields
    • Authors: D. V. Fil, S. I. Shevchenko
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 420-424, April 2020.
      Crossed electric and magnetic fields influence dipolar neutral particles in the same way as the magnetic field influences charged particles. The effect of crossed fields is proportional to the dipole moment of the particle (inherent or induced). We show that this effect is quite spectacular in a multilayer system of polar molecules. In this system molecules may bind in chains. At low temperature the gas of chains becomes the superfluid one. The crossed fields then induce vortices in the superfluid gas of chains. The density of vortices is proportional to the number of particles in the chain. The effect can be used for monitoring the formation and destruction of chains in multilayer dipolar gases.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:42:01Z
  • Magnon-phonon interactions in magnon spintronics (Review article)
    • Authors: D. A. Bozhko, V. I. Vasyuchka, A. V. Chumak, A. A. Serga
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 383-399, April 2020.
      Nowadays, the interaction between phonon and magnon subsystems of a magnetic medium is a hot topic of research. The complexity of phonon and magnon spectra, the existence of both bulk and surface modes, the quantization effects, and the dependence of magnon properties on applied magnetic field, make this field very complex and intriguing. Moreover, the recent advances in the fields of spin caloritronics and magnon spintronics as well as the observation of the spin Seebeck effect in magnetic insulators points on the crucial role of magnons in spin-caloric transport processes. In this review, we collect the variety of different studies in which magnon-phonon interaction play important role. The scope of the paper covers the wide range of phenomena starting from the interaction of the coherent magnons with surface acoustic wave and finishing with the formation of magnon supercurrents in the thermal gradients.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:59Z
  • Break-junction tunneling spectra of Bi2212 superconducting ceramics:
           Influence of inhomogeneous d-wave-Cooper-pairing and charge-density-wave
           order parameters
    • Authors: Toshikazu Ekino, Alexander M. Gabovich, Mai Suan Li, Henryk Szymczak, Alexander I. Voitenko
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 400-413, April 2020.
      Conductance-voltage characteristics (CVCs) of tunnel break junctions made of Bi2Sr2CaCu2O8+δ crystals were measured. It was demonstrated that the CVCs have a V-shaped inner gap region, similar to those typical of CVCs for tunnel junctions between d-wave superconductors. The CVCs have different forms for different junctions, but all of them reveal weak dip-hump structures outside the inner gap region. Calculations of the tunnel current in the ab plane of the break junctions were carried out in the model of the inhomogeneous d-wave superconductor partially gapped by charge density waves (CDWs). The averaging of the tunnel current over the statistical distributions of both the superconducting and CDW order parameters was carried out. The theoretical results qualitatively reproduce the behavior of experimental curves. A conclusion was made that tunnel directionality and the statistical distributions of both order parameters are crucial factors governing the observed CVC shapes for break junctions made of high-Tc oxides.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:56Z
  • Vortices and non-equilibrium phenomena in superconductors
    • Authors: O. V. Dobrovolskiy, A. I. Bezuglyj
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 307-308, April 2020.

      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:54Z
  • Transport and magnetic properties of a superconducting closed loop
           containing a thin-film quantum interferometer
    • Authors: S. I. Bondarenko, V. P. Koverya, A. V. Krevsun
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 425-430, April 2020.
      The current in a superconducting closed loop containing a thin-film interferometer with two point contacts (two Josephson-type weak links) has been measured as a function of the transport current and external magnetic field applied to interferometer. The differences between the transport and magnetic dependences of the system under study and similar characteristics for a superconducting closed loop containing an interferometer in the form of a single pressed point contact are discussed.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:54Z
  • Vortex guidance and transport in channeled pinning arrays
    • Authors: C. Reichhardt, C. J. O. Reichhardt
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 309-315, April 2020.
      We numerically examine vortices interacting with pinning arrays where a portion of the pinning sites have been removed in order to create coexisting regions of strong and weak pinning. The region without pinning sites acts as an easy-flow channel. For driving in different directions with respect to the channel, we observe distinct types of vortex flow. When the drive is parallel to the channel, the flow first occurs in the pin free region followed by a secondary depinning transition in the pinned region. At high vortex densities there is also an intermediate plastic flow phase due to the coupling between the weak and strong pinning regions. For driving applied perpendicular to the channel, we observe a jammed phase in which vortices accumulate on the boundary of the pinned region due to the vortex-vortex repulsion, while at higher drives the vortices begin to flow through the pinning array. For driving at an angle to the channel, depending on the filling we observe a drive-induced reentrant pinning effect as well as negative differential mobility which occurs when vortices move from the unpinned to the pinned portion of the sample.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:53Z
  • Angular magnetic-field dependence of vortex matching in pinning lattices
           fabricated by focused or masked helium ion beam irradiation of
           superconducting YBa2Cu3O7−δ thin films
    • Authors: B. Aichner, K. L. Mletschnig, B. Müller, M. Karrer, M. Dosmailov, J. D. Pedarnig, R. Kleiner, D. Koelle, W. Lang
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 331-337, April 2020.
      The angular dependence of magnetic-field commensurability effects in thin films of the cuprate high-critical-temperature superconductor YBa2Cu3O7−δ (YBCO) with an artificial pinning landscape is investigated. Columns of point defects are fabricated by two different methods of ion irradiation — scanning the focused 30 keV ion beam in a helium ion microscope or employing the wide-field 75 keV He+ beam of an ion implanter through a stencil mask. Simulations of the ion-target interactions and the resulting collision cascades reveal that with both methods square arrays of defect columns with sub-μm spacings can be created. They consist of dense point-defect clusters, which act as pinning centers for Abrikosov vortices. This is verified by the measurement of commensurable peaks of the critical current and related minima of the flux-flow resistance vs magnetic field at the matching fields. In oblique magnetic fields, the matching features are exclusively governed by the component of the magnetic field parallel to the axes of the columnar defects, which confirms that the magnetic flux is penetrated along the defect columns. We demonstrate that the latter dominate the pinning landscape despite of the strong intrinsic pinning in thin YBCO films.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:52Z
  • Misorientation angle dependence of the critical current in HTS bicrystals
           with low-angle [001]-tilt grain boundaries
    • Authors: A. L. Kasatkin, V. P. Tsvetkovskii
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 338-342, April 2020.
      Dependence of the critical current on the misorientation angle in high-temperature superconductor (HTS) [001]-tilt bicrystal is theoretically examined. It’s argued that in the case of relatively small values of the bicrystal misorientation angle θ (θ ≤ 10–15°) the critical current as well as the resistive state emergence are determined by depinning of Abrikosov vortices, which are locked by c-oriented edge dislocations which form the low-angle [001]-tilt grain boundary and are aligned in a linear row along it. Dependence of the depinning critical current on the misorientation angle of bicrystal is calculated for this case and it reveals a good agreement with experimental data obtained on HTS bicrystals with low-angle [001]-tilt grain boundaries.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:51Z
  • Time-dependent Ginzburg-Landau simulations of superconducting vortices in
           three dimensions
    • Authors: Antonio Lara, César González-Ruano, Farkhad G. Aliev
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 316-324, April 2020.
      Here we describe the development of a computer algorithm to simulate the Time-Dependent Ginzburg-Landau equation (TDGL) and its application to understand superconducting vortex dynamics in confined geometries. Our initial motivation to get involved in this task was trying to understand better our experimental measurements on the dynamics of superconductors with vortices at high frequencies leading to microwave stimulated superconductivity due to the presence of vortex [A. Lara, et al., Sci. Rep. 5, 9187 (2015)].
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:50Z
  • Simulation of dynamics of the order parameter in superconducting
           nanostructured materials: Effect of the magnetic field renormalization
    • Authors: E. I. Smirnova, R. O. Rezaev, V. M. Fomin
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 325-330, April 2020.
      The effect of the magnetic field renormalization in superconducting nanostructured materials is quantitatively evaluated. For demonstration purposes, three superconducting structures with various geometric shapes and dimensions and functioning in different resistive regimes are considered. Simulation is based on a set of equations including the time-dependent Ginzburg-Landau equation coupled with the Maxwell equations. An impact of the order parameter on the vector and scalar potentials is taken into account. It is shown that for Nb structures having thicknesses (∼200 nm) less than the magnetic field penetration depth (∼300 nm), the effect of the magnetic field renormalization equivocally affects the spatiotemporal distribution of superconducting vortices. For a slab with the thickness of ∼100 nm, the absolute value of the average voltage generated by moving vortices changes by less than 1%. With increasing the thickness of C-shaped structures up to 500 nm, the renormalization effect leads to the growth of the average voltage by up to 10%.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:49Z
  • Catastrophe theory in the phenomenological description of the avalanche
           effect in dc-biased microwave HTSC transmission lines
    • Authors: S. I. Melnyk, S. S. Melnyk, A. A. Lavrinovich, N. T. Cherpak
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 358-364, April 2020.
      Within the framework of the proposed generalization of the phenomenological model of a microwave nonlinear HTSC transmission line, the effects of direct current on the transmission line are studied. Taking into account the next term in the expansion of the nonlinear dependence of the resistance on current allows us to explain the anomalous dependence of the insertion loss on the input power level observed in the experiment at subcritical temperatures. An additional direct current through the microwave waveguide can lead to the appearance of a bifurcation region in the space of control parameters. This is manifested in the possibility of an abrupt change in the properties of the waveguide at the boundaries of this region and the transition of the HTSC waveguide to a strongly dissipative state. The qualitative correspondence of the properties of the generalized phenomenological model to the data of experimental studies of the HTSC coplanar waveguide is obtained.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:48Z
  • Magnetic flux avalanches in Nb/NbN thin films
    • Authors: L. B. L. G. Pinheiro, M. Caputo, C. Cirillo, C. Attanasio, T. H. Johansen, W. A. Ortiz, A. V. Silhanek, M. Motta
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 365-371, April 2020.
      Technological applications of NbN thin films may be threatened by the development of magnetic flux avalanches of thermomagnetic origin appearing in a large portion of the superconducting phase. In this work, we describe an approach to substantially suppress the magnetic flux avalanche regime, without compromising the upper critical field. This procedure consists of depositing a thin Nb layer before the reactive deposition of NbN, thus forming a bi-layered system. We use ac susceptibility and dc magnetometry to characterize both the single-layer films, Nb and NbN, and the bi-layered specimen, as well as calibrated magneto-optical imaging to map the instability regime of the studied samples. Magnetic flux imaging reveals interesting features of the dendritic flux avalanches in the bi-layer system, including halo-like patterns and crossing avalanches.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:47Z
  • Physics of vortex motion by means of microwave surface impedance
           measurements (Review article)
    • Authors: N. Pompeo, A. Alimenti, K. Torokhtii, E. Silva
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 343-347, April 2020.
      In this paper we present a short overview on the results that can be obtained through the study of vortex motion at high frequencies. The phenomenological force balance for isolated-like vortices shaken by microwave currents and subjected to viscous drag, pinning forces and thermal creep is recalled and physically presented. The derived vortex motion resistivity, together with the main vortex parameters (viscosity η and flux flow resistivity ρff, pinning constant kp, creep factor χ), is then commented. Sample measurements are reported to illustrate the main aspects of the involved physical models.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:46Z
  • Microwave devices based on superconducting surface electromagnetic wave
           resonator (Review article)
    • Authors: V. Malyshev, G. Melkov, O. Prokopenko
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 348-357, April 2020.
      In this paper we present an overview of the microwave properties of a surface electromagnetic wave resonator (SEWR) made on the basis of a superconducting film, and also consider possible applications of such resonators to create various microwave devices. Features of such a SEWR are the simplicity of its design (such a resonator, in fact, can be just the superconducting film itself on a dielectric substrate); a large amplitude of microwave electromagnetic field on the surface of the resonator’s superconducting film, which allows one to organize intense interaction of this field with the superconductor; the possibility of synchronous operation of integrated superconducting elements, embedded in the resonator, under the action of its microwave field. The review is based on our works published since 2000 and discusses the possible applications of superconducting SEWRs to create a new class of microwave filters, microwave signal generators and detectors, and other devices based on Josephson junctions.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:44Z
  • Flux flow instability in type II superconducting strips: Spatially uniform
           versus nonuniform transition
    • Authors: D. Yu. Vodolazov
      Abstract: Low Temperature Physics, Volume 46, Issue 4, Page 372-374, April 2020.
      We discuss two possible mechanisms of the flux flow instability (FFI) in type II superconducting strips. While the nature of nonequilibrium effects leading to this instability is widely accepted (Joule heating and finite relaxation time of the superconducting order parameter) still there is a question how FFI develops in space. According to one scenario instability occurs simultaneously in the whole sample and superconductor jumps to the normal or resistive state with no change in the structure of moving vortex array. Another scenario predicts appearance of the vortex rivers at the instability point and jump of the superconductor to the normal or the resistive state but with strongly modified structure of the moving vorticies.
      Citation: Low Temperature Physics
      PubDate: 2020-04-24T03:41:44Z
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