搜索结果: 1-15 共查到“凝聚态物理学 order”相关记录16条 . 查询时间(0.109 秒)
Stanford team finds order in a process previously assumed to be random
Stanford team process previously assumed random
2016/11/4
Scientific discoveries often arise from noticing the unexpected. Such was the case when Stanford researchers, studying a tiny device that has become increasingly important in disease diagnostics and d...
Homogeneous populations of oscillators have recently been shown to exhibit stable coexistence
of coherent and incoherent regions. Generalizing the concept of chimera states to the context of order-di...
Carrier heating and high-order harmonics generation in doped graphene by a strong ac electric field
Carrier heating high-order harmonics generation strong ac electric field
2010/11/25
The nonlinear response of electrons (holes) in doped graphene on ac pumping is concidered the-
oretically for the frequency region above the energy relaxation rate but below the momentum and
carrier...
We investigate the effects of a trapping space-dependent potential on the low-temperature quasilong-range order phase of two-dimensional particle systems with a relevant U(1) symmetry, such as quantum...
Eighth-order phase-field-crystal model for two-dimensional crystallization
Eighth-order phase-field-crystal model two-dimensional crystallization
2010/11/25
We present a derivation of the recently proposed eighth order phase field crystal model [Jaatinen et al. , Phys. Rev. E 80, 031602 (2009)] for the crystallization of a solid from an undercooled melt.
Theory of Valley-Density Wave and Hidden Order in Iron-Pnictides
Theory of Valley-Density Wave Iron-Pnictides
2010/11/19
In the limit of perfect nesting, the physics of iron-pnictides is governed by the density wave
formation at the zone-edge vector M. At high energies, various spin- (SDW), charge- (CDW),
orbital/pock...
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 ...
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...
Confirmation of room-temperature long range magnetic order in GaN:Mn
GaN:Mn Diluted magnetic semiconductor Atomic force microscope
2010/11/23
We propose a method for nano-scale characterization of long range magnetic order in diluted magnetic systems to clarify the origins of the room temperature ferromagnetism. The GaN:Mn thin films are gr...
Evidence for a First Order, Finite Temperature Phase Transition in 8 Flavor QCD
Evidence First Order Finite Temperature Phase Transition
2011/1/13
As part of our ongoing investigations of QCD with many flavors of quarks, here we report on
studies of the finite temperature phase transition for eight-flavor QCD with the DBW2 gauge
action and na&...
Imaging Stacking Order in Few-Layer Graphene.
Intricacies of Strain and Magnetic Field Induced Charge Order Melting in Pr0.5Ca0.5MnO3 Thin Films
Intricacies of Strain Magnetic Field Induced Charge Order
2010/11/25
Intricacies of Strain and Magnetic Field Induced Charge Order Melting in Pr0.5Ca0.5MnO3 Thin Films.
Single Crystal Study of Competing Rhombohedral and Monoclinic Order in Lead Zirconate Titanate
Single Crystal Study of Competing Rhombohedral Monoclinic Order Lead Zirconate Titanate
2010/11/23
Neutron diffraction data obtained on single crystals of PbZr1−xTixO3 with x = 0.325 and x =
0.460, which lie on the pseudorhombohedral side of the morphotropic phase boundary, suggest a
coexis...
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...
Quantum Destruction of Spiral Order in Two Dimensional Frustrated Magnets
Quantum Destruction Spiral Order Two Dimensional Frustrated Magnets
2010/11/25
We study the fate of S = 1/2 spiral ordered two dimensional quantum magnets when disordered
by quantum fluctuations. The topological point defects of the spiral, the Z2 vortices, play a crucial role ...