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Physicists observe room-temperature superconductivity（图）
room-temperature superconductivity
2020/10/23
Researchers at the University of Rochester and the University of Las Vegas, Nevada, have made a breakthrough in the long sought-after quest for a room-temperature superconductor, which they call the "...
High-Temperature Superconductivity in B-doped Q-Carbon（图）
High-Temperature Superconductivity B-doped Q-Carbon
2017/9/1
Following a brief report on high-temperature superconductivity in B-doped Q-carbon, we present detailed structure-property correlations to understand the origin of superconductivity in strongly bonded...
Closing in on high-temperature superconductivity
Closing high-temperature superconductivity
2016/9/29
The quest to know the mysterious recipe for high-temperature superconductivity, which could enable revolutionary advances in technologies that make or use electricity, just took a big leap forward tha...
Improvement of temperature uniformity in rapid thermal processing systems using multivariable control
Temperature uniformity rapid heat treatment system a semiconductor chip the chip temperature distribution the chip
2015/8/12
During rapid thermal processing (RTP) of a semiconductor wafer, maintenance of near-uniform wafer temperature distribution is necessary. This paper addresses the problem of insuring temperature unifor...
Multivariable feedback control of semiconductor wafer temperature
Multivariate semiconductor chip temperature temperature control chip rapid heat treatment semiconductor chips sensors
2015/8/12
The authors consider the problem of wafer temperature control in rapid thermal processing (RTP) of semiconductor wafers. They present a novel approach to the analysis of candidate sensor configuration...
Spectral Function of Fermion Coupled with Massive Vector Boson at Finite Temperature in Gauge Invariant Formalism
Spectral Function of Fermion Coupled Massive Vector Boson Finite Temperature Gauge Invariant Formalism
2011/1/10
We investigate spectral properties of a fermion coupled with a massive gauge boson with a mass
m at finite temperature (T ) in the perturbation theory.
Determining the Critical Temperature and Number of Frozen Layers in a Two-Dimensional Bed of Vibrating Hard Spheres Using a Global Equation of State
Critical Temperature Number of Frozen Layers Two-Dimensional Bed of Vibrating Hard Spheres
2010/11/25
Using a global equation of state, empirically derived by Luding, we ac-curately model the density profile of a two-dimensional hard sphere system with diameter D and mass m under gravity with a given ...
Zero-Temperature Structures of Atomic Metallic Hydrogen
Zero-Temperature Structures Atomic Metallic Hydrogen
2010/11/25
Ab initio random structure searching with density functional theory was used to determine the
zero-temperature structures of atomic metallic hydrogen from 500 GPa to 5 TPa. Including zero
point moti...
Finite-Temperature Density-Functional Theory of Bose-Einstein Condensates
Finite-Temperature Density-Functional Theory Bose-Einstein Condensates
2010/11/25
The thermodynamic approach to density functional theory (DFT) is used to derive a versatile
theoretical framework for the treatment of finite–temperature (and in the limit, zero temperature)Bose–Eins...
Twisted Hubbard Model for Sr2IrO4: Magnetism and Possible High Temperature Superconductivity
Twisted Hubbard Model for Sr2IrO4 Magnetism Possible High Temperature Superconductivity
2010/11/23
Sr2IrO4 has been suggested as a Mott insulator from a single Jeff = 1/2 band, similar to the
cuprates. However this picture is complicated by the measured large magnetic anisotropy and
ferromagnetis...
Long range chromomagnetic fields at high temperature
Long range chromomagnetic fields high temperature
2011/1/14
The magnetic mass of neutral gluons in Abelian chromomagnetic field at high temperature is calculated in SU(2) gluodynamics. It is noted that such type fields are spontaneously generated at high tempe...
Effect of charge ordering on superconductivity in high-temperature superconductors
charge ordering high-temperature superconductors
2010/11/19
It is shown that charge ordering in layered crystalline metals causes an increase in the normal
state energy of the conducting layers. If this increase in the energy exceeds the difference between th...
Enhancing the superconducting transition temperature of BaSi2 by structural tuning
superconducting transition temperature of BaSi2
2010/11/18
We present a joint experimental and theoretical study of the superconducting phase of the lay-
ered binary silicide BaSi2. Compared with the layered AlB2 structure of graphite or diboride-like superc...
Local electronic structure of Fe$^{2+}$ impurities in MgO thin films: Temperature-dependent soft x-ray absorption spectroscopy study
Local electronic structure of Fe$^{2+}$ impurities Temperature-dependent soft x-ray absorption spectroscopy study
2010/11/18
We report on the local electronic structure of Fe impurities in MgO thin films. Using soft x-ray absorption spectroscopy (XAS) we verified that the Fe impurities are all in the 2+ valence state.The fi...
Magnetic order, metamagnetic transitions, and low-temperature spin freezing in Ca2Co2O6: an NMR study
Magnetic order metamagnetic transitions low-temperature spin
2010/11/18
We report on a 59Co NMR investigation of the trigonal cobaltate Ca3Co2O6 carried out on a single crystal, providing precise determinations of the electric field gradient and chemical shift tensors, an...