搜索结果: 1-15 共查到“物理学 temperature”相关记录192条 . 查询时间(0.104 秒)
[成果]北京师范大学物理学系张金星和沈卡小组与合作者以“Strain-Driven Dzyaloshinskii-Moriya Interaction for Room-Temperature Magnetic Skyrmions”为题发表学术成果（图）
磁性体系；多铁性材料；磁电耦合
2021/11/1
Dzyaloshinskii-Moriya（DM）相互作用，是一种反对称自旋交换作用，于上个世纪六十年代由I. Dzyaloshinskii利用唯象理论提出，并由T. Moriya在超交换相互作用中考虑自旋轨道耦合而发展的微观理论，被用来解释磁性体系中诸多新奇物理现象（自旋玻璃中的各向异性场、多铁性材料中的磁电耦合、自旋波的非对称色散关系、非共线磁结构等）。近十几年来，由于DM相互作用而实现的螺旋...
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 "...
System's ability to boost laser precision at room temperature increases its usability（图）
boost laser precision room temperature increases usability
2020/7/17
Physicists at the Massachusetts Institute of Technology have designed a quantum "light squeezer" that reduces quantum noise in an incoming laser beam by 15%. It is the first system of its ki...
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...
Room Temperature Ultra-sensitive Mass Spectrometer via Dynamic Decoupling
Room Temperature Ultra-sensitive Mass Spectrometer Dynamic Decoupling
2016/1/22
We propose an ultrasensitive mass spectrometer based on a coupled quantum-bit-oscillator system. Under dynamical decoupling control of the quantum bit (qubit), the qubit coherence exhibits a comb stru...
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...
Argonne scientists announce first room-temperature magnetic skyrmion bubbles
Argonne scientists room-temperature magnetic skyrmion bubbles
2015/6/18
New ideas are bubbling up for more efficient computer memory.Researchers at UCLA and the U.S. Department of Energy’s Argonne National Laboratory announced today a new method for creating magnetic skyr...
Critical Temperature Shift in Weakly Interacting Bose Gas
High performance monte carlo quantum bose gas the scattering
2014/12/22
With a high-performance Monte Carlo algorithm we study the interaction-induced shift of the critical point in weakly interacting three-dimensional |ψ|4 theory (which includes quantum Bose gas). In ter...
New evidence for zero-temperature relaxation in a spin-polarized Fermi liquid
The experiment report parameters and coefficients
2014/12/20
Spin-echo experiments are reported for 3He-4He solutions under extremely high B/T conditions, B=14.75 T and T≥1.73 mK. The 3He concentration x3 was adjusted close to the valu...
Understanding temperature and chemical potential using computer simulations
Monte carlo temperature chemical potential
2014/12/20
Several Monte Carlo algorithms and applications that are useful for understanding the concepts of temperature and chemical potential are discussed. We then introduce a generalization of the demon algo...
Numerical study of the three-dimensional random-field Ising model at zero and positive temperature
Three-dimensional ising model zero temperature heat capacity critical point
2014/12/20
In this paper the three-dimensional random-field Ising model is studied at both zero temperature and positive temperature. Critical exponents are extracted at zero temperature by finite size scaling a...
Effects of finite temperature on the Mott-insulator state
Temperature ultracold bose atoms optical lattice atom
2014/12/20
We investigate the effects of finite temperature on ultracold Bose atoms confined in an optical lattice plus a parabolic potential in the Mott-insulator state. In particular, we analyze the temperatur...
Critical Temperature and Thermodynamics of Attractive Fermions at Unitarity
Dilution system lattice fermion monte carlo thermodynamic functions
2014/12/20
The unitarity regime of the BCS-BEC crossover can be realized by diluting a system of two-component lattice fermions with an on-site attractive interaction. We perform a systematic-error-free finite-t...