搜索结果: 1-15 共查到“凝聚态物理学 metal”相关记录24条 . 查询时间(0.044 秒)
^{75}As NMR study of the growth of paramagnetic-metal domains due to electron doping near the superconducting phase in LaFeAsO_{1-x}F_{x}
paramagnetic-metal domains electron doping superconducting phase LaFeAsO_{1-x}F_{x}
2012/2/27
We studied the electric and magnetic behavior near the phase boundary between antiferromagnetic (AF) and superconducting (SC) phases for a prototype of high-T_c pnictides LaFeAsO_{1-x}F_{x} by using n...
Double proximity effect in hybrid planar Superconductor-(Normal metal/Ferromagnet)-Superconductor structures
Double proximity effect hybrid planar Superconductor Superconductor structures
2012/2/27
We have investigated the differential resistance of hybrid planar Al-(Cu/Fe)-Al submicron bridges at low temperatures and in weak magnetic fields. The structure consists of Cu/Fe-bilayer forming a bri...
Impurity-assisted Andreev reflection at a spin-active half-metal-superconductor interface
Impurity-assisted Andreev reflection spin-active half-metal-superconductor interface
2012/2/27
The Andreev reflection amplitude at a clean interface between a half-metallic ferromagnet (H) and a superconductor (S) for which the half metal's magnetization has a gradient perpendicular to the inte...
New Hydrocarbon Superconductor on the Verge of Metal-Insulator Transition: Electronic Structures and Magnetic Properties of K3picene
New Hydrocarbon Superconductor Verge of Metal-Insulator Transition: Electronic Structures Magnetic Properties of K3picene
2010/11/22
We have investigated the electronic structures and magnetic properties of of K3picene, which
is a first hydrocarbon superconductor with high transition temperature Tc=18K. We have shown
that the met...
Electronic structure of an antiferromagnetic metal: CaCrO3
Electronic structure antiferromagnetic metal: CaCrO3
2010/11/19
We report on the electronic structure of the perovskite oxide CaCrO3 using valence-band, corelevel,and Cr 2p − 3d resonant photoemission spectroscopy (PES). Despite its antiferromagnetic order, ...
Orbital Order, Metal Insulator Transition, and Magnetoresistance-Effect in the two-orbital Hubbard model
Orbital Order Metal Insulator Transition Magnetoresistance-Effect
2010/11/19
We study the effects of temperature and magnetic field on a two-orbital Hubbard model within
dynamical mean field theory. We focus on the quarter filled system, which is a special point in the phase ...
Chemical Raman Enhancement of Organic Adsorbates on Metal Surfaces
Chemical Raman Enhancement Organic Adsorbates Metal Surfaces
2010/11/19
Using a combination of rst-principles theory and experiments, we provide a quantitative explanation for chemical contributions to surface-enhanced Raman spectroscopy for a well-studied organic molecu...
We report resonant ultrasound spectroscopy (RUS), dilatometry/magnetostriction, magnetotransport,magnetization, specic-heat, and 119Sn Mossbauer spectroscopy measurements on SnTe and Sn0:995Cr0:005T...
Temporal behavior of the inverse spin Hall voltage in a magnetic insulator-nonmagnetic metal structure
Temporal behavior inverse spin Hall voltage magnetic insulator-nonmagnetic metal structure
2010/11/18
The time dependence of an inverse spin Hall (iSHE) voltage in a magnetic insulator (yttrium
iron garnet, YIG)-nonmagnetic metal (platinum, Pt) structure is studied. A flow of spin-polarized electrons...
Double quantum dot with tunable coupling in an enhancement-mode silicon metal-oxide semiconductor device with lateral geometry
Double quantum dot enhancement-mode silicon lateral geometry
2010/11/17
We present transport measurements of a tunable silicon metal-oxide-semiconductor double quantum dot device with lateral geometry. Experimentally extracted gate-to-dot capacitances show that the device...
Optical Properties of (SrMnO3)n/(LaMnO3)2n superlattices: an insulator-to-metal transition observed in the absence of disorder
Optical Properties insulator-to-metal transition absence of disorder
2010/11/23
We measure the optical conductivity 1(!) of (SrMnO3)n/(LaMnO3)2n superlattices (SL) for
n = 1, 3, 5, and 8 and 10 < T < 400 K. Data show a T -dependent insulator to metal transition
(IMT) for n 3...
Field-induced water electrolysis switches an oxide semiconductor from an insulator to a metal
Field-induced water electrolysis switches oxide semiconductor
2010/11/23
Water is composed of two strong electro-chemically active agents, H+ and OH– ions,for oxide semiconductors though water has never been utilized as an active electronic material. Here we demonstrate th...
Metal-Insulator Transition and Magnetic Order in the Pyrochlore Oxide Hg2Ru2O7
pyrochlore structure ruthenium oxide Hg2Ru2O7 NMR metal-insulator transition magnetic magnetic
2010/11/17
We report results of NMR experiments on the ruthenium oxide Hg2Ru2O7 with the py-rochlore structure, which exhibits a metal-insulator transition at TMI = 107 K. In the metallic
phase above TMI, the n...
Growth of Large-Area Graphene Films from Metal-Carbon Melts
Single Layer Graphene Crystal Growth Binary Phases Raman Spectroscopy wrinkles
2010/11/24
We have demonstrated a new method for the large-area graphene growth, which can lead to a scalable low-cost high-throughput production technology. The method is based on growing single-layer or few-la...