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  Subjects -> PHYSICS (Total: 750 journals)
    - ELECTRICITY AND MAGNETISM (8 journals)
    - MECHANICS (20 journals)
    - NUCLEAR PHYSICS (44 journals)
    - OPTICS (89 journals)
    - PHYSICS (543 journals)
    - SOUND (17 journals)
    - THERMODYNAMICS (29 journals)

PHYSICS (543 journals)                  1 2 3 4 5 6 | Last

Acta Acustica united with Acustica     Full-text available via subscription   (Followers: 7)
Acta Mechanica     Hybrid Journal   (Followers: 15)
Advanced Composite Materials     Hybrid Journal   (Followers: 15)
Advanced Functional Materials     Hybrid Journal   (Followers: 36)
Advanced Materials     Hybrid Journal   (Followers: 368)
Advances in Condensed Matter Physics     Open Access   (Followers: 6)
Advances in Exploration Geophysics     Full-text available via subscription   (Followers: 3)
Advances in Geophysics     Full-text available via subscription   (Followers: 4)
Advances in High Energy Physics     Open Access   (Followers: 11)
Advances in Imaging and Electron Physics     Full-text available via subscription   (Followers: 1)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 15)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 14)
Advances in OptoElectronics     Open Access   (Followers: 3)
Advances In Physics     Hybrid Journal   (Followers: 7)
Advances in Physics Theories and Applications     Open Access   (Followers: 4)
Advances in Remote Sensing     Open Access   (Followers: 8)
Advances in Synchrotron Radiation     Hybrid Journal   (Followers: 1)
AIP Advances     Open Access   (Followers: 4)
AIP Conference Proceedings     Full-text available via subscription   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 29)
American Journal of Condensed Matter Physics     Open Access   (Followers: 2)
American Journal of Signal Processing     Open Access   (Followers: 7)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 1)
Annalen der Physik     Hybrid Journal   (Followers: 2)
Annales Geophysicae (ANGEO)     Open Access   (Followers: 3)
Annales Henri PoincarĂ©     Hybrid Journal   (Followers: 1)
Annales UMCS, Physica     Open Access  
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 3)
Annals of Physics     Hybrid Journal   (Followers: 2)
Annals of West University of Timisoara - Physics     Open Access  
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 1)
Annual Review of Analytical Chemistry     Full-text available via subscription   (Followers: 9)
Annual Review of Condensed Matter Physics     Full-text available via subscription   (Followers: 1)
Annual Review of Materials Research     Full-text available via subscription   (Followers: 4)
APL Materials     Open Access   (Followers: 4)
Applied Composite Materials     Hybrid Journal   (Followers: 9)
Applied Physics A     Hybrid Journal   (Followers: 9)
Applied Physics Frontier     Open Access   (Followers: 1)
Applied Physics Letters     Hybrid Journal   (Followers: 25)
Applied Physics Research     Open Access   (Followers: 6)
Applied Physics Reviews     Hybrid Journal   (Followers: 7)
Applied Radiation and Isotopes     Hybrid Journal   (Followers: 5)
Applied Remote Sensing Journal     Open Access   (Followers: 9)
Applied Spectroscopy     Full-text available via subscription   (Followers: 12)
Applied Spectroscopy Reviews     Hybrid Journal   (Followers: 2)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (Followers: 3)
Astronomy & Geophysics     Hybrid Journal   (Followers: 1)
Astrophysical Journal Letters     Full-text available via subscription   (Followers: 3)
Atoms     Open Access  
Attention, Perception & Psychophysics     Full-text available via subscription   (Followers: 6)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Axioms     Open Access  
Bangladesh Journal of Medical Physics     Open Access  
Bauphysik     Hybrid Journal   (Followers: 1)
Biomaterials     Hybrid Journal   (Followers: 30)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 15)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 12)
Biomedical Imaging and Intervention Journal     Open Access   (Followers: 5)
Biophysical Reviews     Hybrid Journal  
Biophysical Reviews and Letters     Hybrid Journal   (Followers: 3)
BMC Biophysics     Open Access   (Followers: 7)
BMC Nuclear Medicine     Open Access   (Followers: 5)
Brazilian Journal of Physics     Hybrid Journal  
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Bulletin of Materials Science     Open Access   (Followers: 39)
Bulletin of the Atomic Scientists     Full-text available via subscription   (Followers: 4)
Bulletin of the Lebedev Physics Institute     Hybrid Journal   (Followers: 1)
Bulletin of the Russian Academy of Sciences: Physics     Hybrid Journal  
Caderno Brasileiro de Ensino de FĂ­sica     Open Access  
Canadian Journal of Physics     Full-text available via subscription   (Followers: 1)
Cells     Open Access   (Followers: 1)
Central European Journal of Physics     Hybrid Journal   (Followers: 1)
CERN courier. International journal of high energy physics     Free  
Chinese Journal of Astronomy and Astrophysics     Full-text available via subscription   (Followers: 1)
Chinese Physics B     Full-text available via subscription  
Chinese Physics C     Full-text available via subscription  
Chinese Physics Letters     Full-text available via subscription  
Cohesion and Structure     Full-text available via subscription   (Followers: 2)
Colloid Journal     Hybrid Journal   (Followers: 2)
Communications in Mathematical Physics     Hybrid Journal   (Followers: 2)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 3)
Communications in Theoretical Physics     Full-text available via subscription   (Followers: 1)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 50)
Composites Part B : Engineering     Hybrid Journal   (Followers: 68)
Computational Materials Science     Hybrid Journal   (Followers: 19)
Computational Mathematics and Mathematical Physics     Hybrid Journal   (Followers: 1)
Computational Particle Mechanics     Hybrid Journal  
Computational Science and Discovery     Full-text available via subscription  
Computer Physics Communications     Hybrid Journal  
Contemporary Concepts of Condensed Matter Science     Full-text available via subscription  
Contemporary Physics     Hybrid Journal   (Followers: 10)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 3)
Contributions to Plasma Physics     Hybrid Journal   (Followers: 2)
COSPAR Colloquia Series     Full-text available via subscription   (Followers: 1)
Cryogenics     Hybrid Journal   (Followers: 14)
Current Applied Physics     Full-text available via subscription   (Followers: 4)
Diamond and Related Materials     Hybrid Journal   (Followers: 12)
Differential Equations and Nonlinear Mechanics     Open Access   (Followers: 4)
Doklady Physics     Hybrid Journal   (Followers: 1)
Dynamical Properties of Solids     Full-text available via subscription  

        1 2 3 4 5 6 | Last

Journal Cover Advances in Natural Sciences: Nanoscience and Nanotechnology
   [16 followers]  Follow    
  This is an Open Access Journal Open Access journal
     ISSN (Print) 2043-6254 - ISSN (Online) 2043-6262
     Published by Institute of Physics (IOP) Homepage  [56 journals]
  • Novel superconductivity: from bulk to nano systems

    • Authors: M P Das; B J Wilson
      First page: 013001
      Abstract: We begin with an introduction of superconductivity by giving a brief history of the phenomenon. The phenomenological Ginzburg–Landau theory and the microscopic theory of Bardeen, Cooper and Schrieffer are outlined. In view of recently available multi-band superconductors, relevant theories of both types are discussed. Unlike the traditional GL theory an extended GL theory is developed relevant to temperatures below the critical temperature. Superconductivity in a nanosystem is the highlight of the remaining part of the paper. Theories and experiments are discussed to give an interested reader an updated account and overview of what is new in this active area of research.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-05T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • Hydrogen storage in Ti, V and their oxides-based thin films

    • Authors: Z Tarnawski; K Zakrzewska, N-T H Kim-Ngan, M Krupska, S Sowa, K Drogowska, L Havela A G Balogh
      First page: 013002
      Abstract: We have investigated the hydrogen storage ability and the effect of hydrogenation on structure and physical properties of Ti/V and their oxides-based thin films. A series of Ti–TiO 2 and VO x –TiO 2 thin films with different layer structures, geometries and thicknesses have been prepared by the sputtering technique on different (Si(111), SiO 2 , C) substrates. For the Ti–TiO 2 –Ti films up to 50 at.% of hydrogen can be stored in the Ti layers, while the hydrogen can penetrate without accumulation through the TiO 2 layer. A large hydrogen storage was also found in some V 2 O 5 –TiO 2 films. Hydrogen could also remove the preferential orientation in the Ti films and induce a transition of V 2 O 5 to VO 2 in the films.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-16T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • Atomic-order thermal nitridation of group IV semiconductors for
           ultra-large-scale integration

    • Authors: Junichi Murota; Vinh Le Thanh
      First page: 015001
      Abstract: One of the main requirements for ultra-large-scale integration (ULSI) is atomic-order control of process technology. Our concept of atomically controlled processing for group IV semiconductors is based on atomic-order surface reaction control in Si-based CVD epitaxial growth. On the atomic-order surface nitridation of a few nm-thick Ge/about 4 nm-thick Si 0.5 Ge 0.5 /Si(100) by NH 3 , it is found that N atoms diffuse through nm-order thick Ge layer into Si 0.5 Ge 0.5 /Si(100) substrate and form Si nitride, even at 500 °C. By subsequent H 2 heat treatment, although N atomic amount in Ge layer is reduced drastically, the reduction of the Si nitride is slight. It is suggested that N diffusion in Ge layer is suppressed by the formation of Si nitride and that Ge/atomic-order N layer/Si 1 −x Ge x /Si (100) heterostructure is formed. These results demonstrate the capability of CVD technology for atomic...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-05T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • Luminescence from wide band gap materials and their applications

    • Authors: S L Shinde; S Senapati K K Nanda
      First page: 015002
      Abstract: We demonstrate ZnO and In 2 O 3 microcrystals as an optical probe for wide range thermometry. Both ZnO and In 2 O 3 microcrystals exhibit a monotonic decrease in luminescence intensities with increase in temperature. The variation has been explored to develop a thermometer in a wide temperature range. We also demonstrate enhanced brightness from broad-luminescent-wide band gap materials when sensitized with low band gap CdTe quantum dots. Wide band gap materials act as acceptors, while CdTe act as donors. One of the major implications is the designing of weak-luminescent-wide-band gap materials as bright white light emitting phosphors that can convert the ultraviolet into visible light.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-05T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • Silver nanoparticles ink synthesis for conductive patterns fabrication
           using inkjet printing technology

    • Authors: Mau Chien Dang; Thi My Dung Dang Eric Fribourg-Blanc
      First page: 015003
      Abstract: In this paper we present silver nanoparticles ink synthesis targeting conductive patterns for micro fabricated devices by inkjet printing technology. The well dispersed nanoparticles ink was composed of silver colloid with an average particle diameter less than 10 nm. These nanoparticles were protected by a capping layer of poly(N-vinylpyrrolidone) (PVP) even at silver concentration of 20 wt%. Stable aqueous inks were formulated by using a combination of solvent and co-solvents and under vigorous stirring. Various factors affecting the adhesion between the ink and the substrate were investigated, such as solvent and co-solvent content. The ink containing 20 wt% silver has a viscosity of about 9.5 cP and a surface tension of 32 to 36 mN m −1 at room temperature, meeting inkjet printer requirements. The ink stored under ambient conditions was stable against aggregation for more than one month. Silver nanoparticles patterns have been successfully printed on various substra...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-05T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • SiNWs-based electrochemical double layer micro-supercapacitors with wide
           voltage window (4 V) and long cycling stability using a protic ionic
           liquid electrolyte

    • Authors: David Aradilla; Pascal Gentile, Vanesa Ruiz, Pedro Gómez-Romero, Jan Wimberg, Boyan Iliev, Thomas J S Schubert, Saïd Sadki Gérard Bidan
      First page: 015004
      Abstract: The present work reports the use and application of a novel protic ionic liquid (triethylammonium bis(trifluoromethylsulfonyl)imide; NEt 3 H TFSI) as an electrolyte for symmetric planar micro-supercapacitors based on silicon nanowire electrodes. The excellent performance of the device has been successfully demonstrated using cyclic voltammetry, galvanostatic charge-discharge cycles and electrochemical impedance spectroscopy. The electrochemical characterization of this system exhibits a wide operative voltage of 4 V as well as an outstanding long cycling stability after millions of galvanostatic cycles at a high current density of 2 mA cm −2 . In addition, the electrochemical double layer micro-supercapacitor was able to deliver a high power density of 4 mW cm −2 in a very short time pulses (a few ms). Our results could be of interest to develop prospective on-chip micro-supercapacitors using protic ionic liquids as electrolytes with high performance i...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-05T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • Enhancing ionic conductivity in lithium amide for improved energy storage
           materials

    • Authors: Rosalind A Davies; David R Hewett Paul A Anderson
      First page: 015005
      Abstract: Non-stoichiometry and bulk cation transport have been identified as key factors in the release and uptake of hydrogen in the Li–N–H system. Amide halide phases have been synthesized that have ionic conductivities several orders of magnitude greater than lithium amide, a faster rate of hydrogen release and elimination of the by-product, ammonia. Here we report the effect of both anion- and cation-doping on the hydrogen desorption properties of lithium amide, focusing in particular on how the presence of chloride anions and magnesium cations affects and controls the structure of the amide and imide compounds at the sub-nanometre level. Reducing the chloride content resulted in new low-chloride rhombohedral phases that contain around half of the chloride present in earlier amide chlorides, but maintained the enhancements seen in hydrogen desorption properties when compared to the halide-free system. These materials may also have potential in a range of other energy applications such...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-16T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • Photochromic reaction of the diarylethene derivative on Au nanoparticles

    • Authors: Ryoji Takahashi; Satoshi Kaneko, Shintaro Fujii Manabu Kiguchi
      First page: 015006
      Abstract: We have studied the photochromic reaction of the diarylethene derivative on Au nanoparticles using the incoherent excitation as a function of the wavelength of the irradiation light with the aim to clarify the effect of metal nanoparticles on the reaction yield. The photochemical reaction was suppressed by the Au nanoparticles under the irradiation of light whose wave length was shorter than 700 nm, while photochemical reaction was enhanced by the irradiation of light whose wavelength was longer than 750 nm via two-photon absorption process. The suppression of the photochemical reaction could be explained by the quenching of the excited state via radiative and non-radiative decay through energy or charge transfer to the metal substrate (e.g. electron–hole pair formation, surface plasmon excitation, formation of induced-dipole induced-dipole coupling), and the absorption of light by the Au nanoparticle.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-16T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • Superconductivity in the splat-cooled UMo alloys

    • Authors: N-T H Kim-Ngan; S Sowa, M Krupska, M Paukov, I Tkach L Havela
      First page: 015007
      Abstract: We have investigated the superconductivity in splat-cooled UMo alloys by low-temperature resistivity and specific-heat measurements down to 0.4 K. The γ -U materials, such as U-Mo15 (with 15 at.% Mo doping), exhibit a conventional BCS superconductivity with T c = 2.1 K and upper critical field exceeding 5 T, much higher than that for α -U materials. The alloys with
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-12-16T00:00:00Z
      Issue No: Vol. 6, No. 1 (2014)
       
  • The effect of interface trapped charges in DMG-S-SOI MOSFET: a perspective
           study

    • Authors: S K Mohapatra; K P Pradhan, P K Sahu, G S Pati M R Kumar
      First page: 045015
      Abstract: In this paper, the existing two-dimensional (2D) threshold voltage model for a dual material gate fully depleted strained silicon on insulator (DMG-FD-S-SOI) metal-oxide-semiconductor field effect transistor (MOSFET) is modified by considering the interface trapped charge effects. The interface trapped charge is a common phenomenon, and this charge cannot be neglected in nanoscale devices. For finding out the surface potential, parabolic approximation has been utilized and the virtual cathode potential method is used to formulate the threshold voltage. The developed threshold voltage model incorporates both positive as well as negative interface charges. Finally, validity of the presented model is verified with 2D device simulator Sentaurus'.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2014-11-27T00:00:00Z
      Issue No: Vol. 5, No. 4 (2014)
       
 
 
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