搜索结果: 16-30 共查到“理学 ordering”相关记录74条 . 查询时间(0.046 秒)
Antiferromagnetic ordering in the absence of a structural distortion in Ba(Fe{1-x}Mn{x})2As2
Stripe Antiferromagnetic structural distortio
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2010/11/22
Neutron and x-ray diffraction studies of Ba(Fe1−xMnx)2As2 for low doping concentrations (x 6 0.176)reveal that at a critical concentration, 0.102 < x < 0.118, the tetragonal-to orthorhombic tran...
Commensurate antiferromagnetic ordering in Ba(Fe{1-x}Co{x})2As2 determined by x-ray resonant magnetic scattering at the Fe K-edge
Commensurate antiferromagnetic x-ray resonant magnetic Fe K-edge
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2010/11/22
We describe x-ray resonant magnetic diffraction measurements at the FeK-edge of both the parent BaFe2As2 and superconducting Ba(Fe0.953Co0.047)2As2 compounds. From these high-resolution measurements w...
Effect of charge ordering on superconductivity in high-temperature superconductors
charge ordering high-temperature superconductors
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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...
Pressure-temperature phase diagram of charge ordering in Nd1/2Sr1/2MnO3
Pressure-temperature phase diagram Nd1/2Sr1/2MnO3
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2010/11/17
We observe how the charge-ordering temperature TCO of Nd1/2Sr1/2MnO3 decreases with the external pressure p from 160 K at p = 0 down to 30 K at p ≃ 4.5 GPa, by measuring the
values p, T where t...
Antiferromagnetic ordering in EuPtGe$_3$ single crystal
EuPtGe3 non-centrosymmetric antiferromagnetism resistivity
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2010/11/25
Magnetic properties of single crystalline EuPtGe3, crystallizing in the non-centrosymmetric BaNiSn3-type crystal strcuture have been studied by means of magnetisation, electrical resistivity, heat cap...
Rapidly fluctuating orbital occupancy above the orbital ordering transition in spin-gap compounds
Rapidly fluctuating orbital orbital ordering spin-gap compounds
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2010/11/19
Several spin systems with low dimensionality develop a spin-dimer phase within a molecular orbital below TS, competing with long-range antiferromagnetic order. Very often, preferential orbital occupan...
On Random Field Induced Ordering in the Classical XY Model
Random Field Induced Ordering Classical XY Model
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2010/12/13
Consider the classical XY model in a weak random external field pointing along the Y axis with strength . We study the behavior of this model as the range of the interaction is varied.
We prove that...
Ritt-Wu's Characteristic Set Method For Ordinary Di®erence Polynomial Systems With Arbitrary Ordering
dierence polynomial ascending chain characteristic set Ritt-Wu's zero decomposition theorem
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2013/9/9
In this paper, a new Ritt-Wu's characteristic set method for ordinary di®erence systems is proposed, which is valid for any admissible ordering. New deˉnition for irreducible chains and new zero ...
Time Ordering Effects on Hydrogen Zeeman-Stark Line Profiles in Low-Density Magnetized Plasmas
Time Ordering Low-Density Magnetized Plasmas Hydrogen
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2009/9/4
Stark broadening of hydrogen lines is investigated in low-density magnetized plasmas, at typical conditions of magnetic fusion experiments. The role of time ordering is assessed numerically, by using ...
On the Star Partial Ordering of Normal Matrices
Star partial ordering Normal matrices Eigenvalues
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2008/6/27
On the Star Partial Ordering of Normal Matrices.
The Laplace order and ordering of reversed residual life
Laplace transform order Laplace transform order of reversed residual life
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2010/9/15
The purpose of this paper is to study new stochastic comparisons based on the Laplace transform order of reversed residual life. Some basic properties of the new order are given. We also provide sever...
ORDERING IN AUTOMATED THEOREMPROVING OF DIFFERENTIAL GEOMETRY
Wu's method ordering
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2007/12/11
A new ordering method is proposed for automated theorem proving of differential geometry,by which Cartan's moving frame method can be combined with Wu's elimination principle.
BOUNDARY SOLUTIONS OF OPERATOR EQUATIONS IN PARIAL ORDERING SETS WITH APPLICATIONS TO SYSTEMS OF FUNCTIONALEQUATIONS
Partial ordering set system of operator
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2007/12/10
摘要 In this papert we study the existence of solutions and boundary solutions tothe following system of operator equations in partial ordering sets.... We do not assume any topological structure or alg...
Characterizations of the Minus Ordering in Fuzzy Matrix Set
Fuzzy matrix minus ordering characterization
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2012/10/10
The matrix minus ordering is introduced into fuzzy matrix set. The minus ordering is a partial ordering in mnF−. Some characterizations of the minus ordering are given.
Normal Ordering Solution to Quantum Dissipation and Its
Induced Decoherence
normal ordering technique quantum decoherence
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2007/8/15
2001Vol.36No.3pp.331-334DOI:
Normal Ordering Solution to Quantum Dissipation and Its
Induced Decoherence
JIN Guang-Ri,1 ZHOU Duan-Lu,1 LIU Yu-Xi,2
YI Xue-Xi1 and SUN Chang-Pu1
...