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PHYSICS (554 journals)            First | 1 2 3 4 5 6 | Last

Journal of Reinforced Plastics and Composites     Hybrid Journal   (Followers: 5)
Journal of Research in Physics     Open Access  
Journal of Rheology     Full-text available via subscription   (Followers: 5)
Journal of Romance Studies     Full-text available via subscription   (Followers: 2)
Journal of Sandwich Structures and Materials     Hybrid Journal   (Followers: 1)
Journal of Scientific Research     Open Access   (Followers: 1)
Journal of Semiconductors     Full-text available via subscription   (Followers: 2)
Journal of Sensors     Open Access   (Followers: 7)
Journal of Sol-Gel Science and Technology     Hybrid Journal   (Followers: 2)
Journal of Solid State Lighting     Open Access  
Journal of Solid State Physics     Open Access  
Journal of Spectroscopy     Full-text available via subscription  
Journal of Superconductivity and Novel Magnetism     Partially Free   (Followers: 1)
Journal of Synchrotron Radiation     Hybrid Journal   (Followers: 1)
Journal of Testing and Evaluation     Full-text available via subscription   (Followers: 10)
Journal of the American Society for Mass Spectrometry     Hybrid Journal   (Followers: 17)
Journal of the Brazilian Society of Mechanical Sciences     Open Access   (Followers: 1)
Journal of the ICRU     Hybrid Journal  
Journal of the Korean Physical Society     Partially Free   (Followers: 1)
Journal of Theoretical and Applied Physics     Open Access   (Followers: 1)
Journal of Tissue Engineering     Open Access   (Followers: 4)
Journal of Ultrasound in Medicine     Full-text available via subscription   (Followers: 3)
Journal of Vibration and Control     Hybrid Journal   (Followers: 18)
Journal of Visualization     Hybrid Journal   (Followers: 2)
Journal of Zhejiang University SCIENCE A     Hybrid Journal  
Jurnal Penelitian Sains (JPS)     Open Access  
Language Learning Journal     Hybrid Journal   (Followers: 13)
Lasers in Surgery and Medicine     Hybrid Journal  
Latvian Journal of Physics and Technical Sciences     Open Access  
Learning Technologies, IEEE Transactions on     Hybrid Journal   (Followers: 10)
Les Houches Summer School Proceedings     Full-text available via subscription  
Letters in Mathematical Physics     Hybrid Journal   (Followers: 3)
Light : Science & Applications     Open Access  
Living Reviews in Relativity     Open Access  
Living Reviews in Solar Physics     Open Access  
Lubrication Science     Hybrid Journal  
Macalester Journal of Physics and Astronomy     Open Access  
Machining Science and Technology: An International Journal     Hybrid Journal   (Followers: 2)
Magnetic Resonance Materials in Physics, Biology and Medicine     Hybrid Journal   (Followers: 1)
Magnetics Letters, IEEE     Hybrid Journal   (Followers: 3)
MAPAN     Hybrid Journal  
Mass Spectrometry Reviews     Hybrid Journal   (Followers: 17)
Matéria (Rio de Janeiro)     Open Access   (Followers: 1)
Materials & Design     Hybrid Journal   (Followers: 30)
Materials at High Temperatures     Full-text available via subscription   (Followers: 4)
Materials Chemistry and Physics     Full-text available via subscription   (Followers: 13)
Materials Research     Open Access   (Followers: 7)
Materials Research Bulletin     Hybrid Journal   (Followers: 18)
Materials Science     Hybrid Journal   (Followers: 7)
Materials Science and Engineering: A     Hybrid Journal   (Followers: 35)
Materials Science and Engineering: B     Hybrid Journal   (Followers: 17)
Materials Science and Engineering: C     Hybrid Journal   (Followers: 16)
Materials Science and Engineering: R: Reports     Hybrid Journal   (Followers: 12)
Matériaux & Techniques     Full-text available via subscription   (Followers: 1)
Mathematical Physics, Analysis and Geometry     Hybrid Journal   (Followers: 1)
Mathematics and Mechanics of Solids     Hybrid Journal   (Followers: 2)
Meccanica     Hybrid Journal   (Followers: 1)
Mechanics of Advanced Materials and Structures     Hybrid Journal   (Followers: 3)
Mechanics of Materials     Hybrid Journal   (Followers: 12)
Mechanics of Time-Dependent Materials     Hybrid Journal   (Followers: 1)
Mechanics Research Communications     Hybrid Journal   (Followers: 2)
Metamaterials     Hybrid Journal   (Followers: 2)
Micro and Nano Systems Letters     Open Access   (Followers: 4)
Microfluidics and Nanofluidics     Hybrid Journal   (Followers: 9)
Microporous and Mesoporous Materials     Hybrid Journal   (Followers: 3)
Modern Instrumentation     Open Access   (Followers: 3)
Modern Physics Letters A     Hybrid Journal   (Followers: 1)
Modern Physics Letters B     Hybrid Journal  
Molecular Diversity     Hybrid Journal  
Moscow University Physics Bulletin     Hybrid Journal  
Multibody System Dynamics     Hybrid Journal   (Followers: 1)
NANO     Hybrid Journal   (Followers: 8)
Nano Letters     Full-text available via subscription   (Followers: 48)
Nano Reviews     Open Access   (Followers: 17)
NanoBioImaging     Open Access  
Nanomechanics     Open Access  
Nanoscale and Microscale Thermophysical Engineering     Hybrid Journal   (Followers: 3)
Nanoscale Research Letters     Open Access   (Followers: 4)
Nanospectroscopy     Open Access  
Nanotechnology Magazine, IEEE     Full-text available via subscription   (Followers: 15)
Natural Science     Open Access   (Followers: 9)
Nature Communications     Hybrid Journal   (Followers: 42)
Nature Materials     Full-text available via subscription   (Followers: 45)
Nature Physics     Full-text available via subscription   (Followers: 26)
NDT & E International     Hybrid Journal   (Followers: 14)
NEUTRINO     Open Access  
Neutron News     Hybrid Journal  
New Journal of Physics     Open Access   (Followers: 7)
Niels Bohr Collected Works     Full-text available via subscription  
Noise & Vibration Worldwide     Full-text available via subscription   (Followers: 5)
Noise Notes     Full-text available via subscription   (Followers: 3)
Nondestructive Testing And Evaluation     Hybrid Journal   (Followers: 6)
Nonlinear Dynamics     Hybrid Journal   (Followers: 5)
NTM Zeitschrift für Geschichte der Wissenschaften, Technik und Medizin     Hybrid Journal   (Followers: 4)
Nuclear Engineering and Design     Hybrid Journal   (Followers: 12)
Nuclear Medicine and Biology     Hybrid Journal   (Followers: 1)
Nuclear Receptor     Full-text available via subscription   (Followers: 1)
Open Journal of Biophysics     Open Access   (Followers: 1)
Open Journal of Fluid Dynamics     Open Access   (Followers: 3)
Open Journal of Microphysics     Open Access  

  First | 1 2 3 4 5 6 | Last

Journal Cover Modern Physics Letters B     [SJR: 0.225]   [H-I: 26]
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 0217-9849 - ISSN (Online) 1793-6640
   Published by World Scientific Homepage  [114 journals]
  • New generation planar chiral metamaterials with small and constant
           chirality over a certain frequency band
    • Authors: Furkan Dincer, Muharrrem Karaaslan, Oguzhan Akgol, Emin Unal, Ekrem Demirel, Cumali Sabah
      Abstract: Modern Physics Letters B, Volume 29, Issue 01, 10 January 2015. Chiral metamaterial (MTM) researchers generally concentrate and aim to obtain large chirality with optical activity in certain frequencies. However, new generation planar chiral MTM which have small and constant/flat chirality over a certain frequency band have not queried by this time in literature. In fact, this area is mostly ignored by researchers. This study, first one according to best of our knowledge in the literature, is investigating the small and constant/fixed chirality and focuses on the new generation planar chiral MTM based on circular split ring resonators (SRRs), in details. It can be seen from the results that the proposed model can provide small and constant/flat chirality over a certain frequency band and thus it can be used to design myriad novel devices such as polarization rotators, and electromagnetic transmission and antireflection filters for several frequency regions.
      Citation: Modern Physics Letters B
      PubDate: Mon, 19 Jan 2015 09:30:15 GMT
      DOI: 10.1142/S0217984914502571
  • The unusual magnetic fields of Uranus and Neptune
    • Authors: W. J. Nellis
      Abstract: Modern Physics Letters B, Volume 29, Issue 01, 10 January 2015. Voyager 2 discovered the unusual non-dipolar and non-axisymmetric magnetic fields of Uranus and Neptune (U/N) in the 1980s. The cause of the unique fields of U/N has been a major scientific question since then. The answer lies in physical properties of fluids that generate planetary magnetic fields by a dynamo: convecting, electrically-conducting fluids at high pressures P and temperatures T in planetary interiors. Fluids in planets at finite temperatures are degenerate condensed matter because of high densities: T/TF ≪1, where TF is Fermi temperature. For metallic fluid H, T/TF≈0.015. The vast majority of measured properties of fluids at planetary P/Ts were made under dynamic compression to few 100 GPa (1 Mbar) and few 1000 K. Fluids in U/N are discussed in terms of experimental data. Major conclusions: (i) Magnetic fields of U/N are made by metallic fluid H at outer planetary radii in the vicinity of the crossover from insulating fluid H2 to metallic fluid H. (ii) Because those fields are made near outer surfaces, it is reasonable to observe non-dipolar non-axisymmetric fields. (iii) A proposed mechanism for the existence of those fields is decoupling of global rotation of U/N from convective motions in their dynamos, unlike Earth with a dipolar field.
      Citation: Modern Physics Letters B
      PubDate: Mon, 19 Jan 2015 09:30:14 GMT
      DOI: 10.1142/S021798491430018X
  • Low-frequency vibration energy harvesting using a locally resonant
           phononic crystal plate with spiral beams
    • Authors: Li Shen, Jiu Hui Wu, Siwen Zhang, Zhangyi Liu, Jing Li
      Abstract: Modern Physics Letters B, Volume 29, Issue 01, 10 January 2015. A low-frequency vibration energy generator has been proposed by using a locally resonant phononic crystal plate which has spiral beams connecting the scatterers and the matrix. Finite element analysis shows that at the flat bands frequencies of the phononic crystal, locally resonant leads to the spiral beams having strong deformations which are perpendicular to the plate. A designed structure with three PC cells arranged in the same direction was adopted for the experiments. Piezoelectric patches were adhered on the end of the spiral beams and then the collected vibration energy could be converted into electric energy. The maximum single-channel output voltage which reached as much as 13 V was obtained at the first flat band frequency 29.2 Hz in the experiment. Meanwhile, in the low-frequency range of 0–500 Hz, it showed that the piezoelectric transformation could be conducted at a dozen of resonant frequencies. Furthermore, through modulating the structure parameters, this phononic crystal has the potential to realize broad-distributed vibration energy harvesting.
      Citation: Modern Physics Letters B
      PubDate: Mon, 19 Jan 2015 09:30:11 GMT
      DOI: 10.1142/S0217984914502595
  • The effect of silver concentration and calcination temperature on
           structural and optical properties of ZnO:Ag nanoparticles
    • Authors: M. Shayani Rad, A. Kompany, A. Khorsand Zak, M. E. Abrishami
      Abstract: Modern Physics Letters B, Volume 29, Issue 01, 10 January 2015. Pure and silver added zinc oxide nanoparticles (ZnO-NPs and ZnO:Ag-NPs) were synthesized through a modified sol–gel method. The prepared samples were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM) and photoluminescence (PL) spectroscopy. In the XRD patterns, silver diffracted peaks were also observed for the samples synthesized at different calcination temperatures of 500°C, 700°C, 900°C except 1100°C, in addition to ZnO. TEM images indicated that the average size of ZnO:Ag-NPs increases with the amount of Ag concentration. The PL spectra of the samples revealed that the increase of Ag concentration results in the increase of the visible emission intensity, whereas by increasing the calcination temperature the intensity of visible emission of the samples decreases.
      Citation: Modern Physics Letters B
      PubDate: Mon, 19 Jan 2015 09:30:10 GMT
      DOI: 10.1142/S0217984914502546
  • Investigation on terahertz parametric oscillators using
           quasi-phase-matching GaP crystal
    • Authors: Z. Y. Li, P. B. Bing, S. Yuan, D. G. Xu, J. Q. Yao
      Abstract: Modern Physics Letters B, Volume 29, Issue 01, 10 January 2015. Terahertz parametric oscillator (TPO) using periodically inverted GaP stacks (PIGaPS) as gain medium with a quasi-phase-matching scheme is investigated. The frequency tuning characteristics of terahertz wave (THz-wave) are analyzed by varying the grating period of PIGaPS and the pump wavelength. Gain and absorption characteristics of THz-wave are also investigated. The characteristics of PIGaPS and periodically poled LiNbO3 (PPLN) are compared when the two crystals used as gain medium for TPO. The analyses indicate that PIGaPS is more suitable than PPLN are used as the gain medium for TPO.
      Citation: Modern Physics Letters B
      PubDate: Mon, 19 Jan 2015 09:30:09 GMT
      DOI: 10.1142/S0217984914502583
  • Stability of logarithmic Bose–Einstein condensate in harmonic trap
    • Authors: Brahim Bouharia
      Abstract: Modern Physics Letters B, Volume 29, Issue 01, 10 January 2015. In this paper, we investigate the stability of a recently introduced Bose–Einstein condensate (BEC) which involves logarithmic interaction between atoms. The Gaussian variational approach is employed to derive equations of motion for condensate widths in the presence of a harmonic trap. Then we derive the analytical solutions for these equations and find them to be in good agreement with numerical data. By analyzing deeply the frequencies of collective oscillations, and the mean-square radius, we find that the system is always stable for both negative and positive week logarithmic coupling. However, for strong interaction the situation is quite different: Our condensate collapses for positive coupling and oscillates with fixed frequency for negative one. These special results remain the most characteristic features of the logarithmic BEC compared to that involving two-body and three-body interactions.
      Citation: Modern Physics Letters B
      PubDate: Mon, 19 Jan 2015 09:30:07 GMT
      DOI: 10.1142/S0217984914502601
  • Structural and electrical properties of lithium cobalt nanoferrites
           prepared by sol–gel method
    • Authors: Victory Maisnam, Mamata Maisnam, Sumitra Phanjoubam
      Abstract: Modern Physics Letters B, Volume 29, Issue 01, 10 January 2015. Lithium cobalt nanoferrites having the compositional formula Li0.5-x/2CoxFe2.5-x/2O4 with x varying from 0.00 to 0.12 in steps of 0.03 were prepared by the chemical sol–gel method. Samples were heated at two different temperatures namely 300°C and 500°C for 4 h. Structural characterization of the samples was done using X-ray diffraction (XRD) technique and confirmed the formation of single phase with spinel structure in all the samples. From the XRD data, the lattice parameter was calculated and found to range from 82.87–83.35 nm while the crystallite size was found to be in the range 17–34 nm. Microstructural studies were carried out using the Scanning Electron Microscopy and revealed the microstructures with grain size ranging from 35–70 nm. Electrical properties like dielectric constant, dielectric loss and AC conductivity for these nanoferrites were investigated. The frequency variation of room temperature dielectric constant, dielectric loss and AC conductivity were studied in the frequency range 100 Hz–1 MHz, and a dispersive behavior was observed, which has been attributed to the Maxwell–Wagner type of interfacial polarization.
      Citation: Modern Physics Letters B
      PubDate: Mon, 19 Jan 2015 09:30:04 GMT
      DOI: 10.1142/S0217984914502558
  • First-principles investigation of the elastic and thermodynamic properties
           of ReC2 (Re = Ho, Nd, Pr)
    • Authors: Wen Huang, Haichuan Chen
      Abstract: Modern Physics Letters B, Volume 29, Issue 01, 10 January 2015. The elastic and thermodynamic properties of ReC2 (Re = Ho, Nd, Pr) have been investigated by using the first-principles density functional theory within the generalized gradient approximation. The computed lattice constants of ReC2 are in agreement with the experimental data. The calculated elastic constants reveal that all compounds are mechanically stable. The shear modulus, Young's modulus, Poisson's ratio σ, the ratio B/G, shear anisotropy and elastic anisotropy are also calculated. Finally, the Vicker hardness, Debye temperature, melting point and thermal conductivity have been predicted.
      Citation: Modern Physics Letters B
      PubDate: Mon, 19 Jan 2015 09:30:02 GMT
      DOI: 10.1142/S021798491450256X
  • Superconductivity in K- and Na-doped BaFe2As2: What can we learn from heat
           capacity and pressure dependence of Tc
    • Authors: Sergey L. Bud'ko
      Abstract: Modern Physics Letters B, Ahead of Print. A brief overview of changes in the superconducting transition temperature under pressure and evolution of specific heat capacity jump at Tc for two related families of iron-based superconductors, Ba1-xKxFe2As2 (0.2 ≤ x ≤ 1.0) and Ba1-xNaxFe2As2 (0.2 ≤ x ≤ 0.9) will be given. For Ba1-xKxFe2As2 the specific heat capacity jump at Tc measured over the whole extent of the superconducting dome shows clear deviation from the empirical, $\Delta C_p (T_c) \propto T_c^3$, scaling (known as the BNC scaling) for x > 0.7. At the same concentrations range apparent equivalence of effects of pressure and K-substitution on Tc fails. These observations suggests a significant change of the superconducting state for x > 0.7. In contrast, the data for the large portion of Ba1-xNaxFe2As2 (0.2 ≤ x ≤ 0.9) series follow the BNC scaling. However, the pressure dependence of Tc (measured up to ~12 kbar) have clear nonlinearities for Na concentration in 0.2–0.25 region, that may be consistent with Tc crossing the phase boundaries of the emergent, narrow, antiferromagnetic/tetragonal phase. Results will be discussed in context other studies of these two related families of iron-based superconductors.
      Citation: Modern Physics Letters B
      PubDate: Wed, 14 Jan 2015 06:30:52 GMT
      DOI: 10.1142/S0217984914300191
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