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The main 1/2 magnetization plateau in Shastry-Sutherland magnets:Effect of the long-range Ruderman-Kittel-Kasuya-Yosida interaction
1/2 magnetization plateau Shastry-Sutherland magnets long-range Ruderman-Kittel-Kasuya-Yosida interaction
2016/12/2
The ordering of the classical Ising model on the Archimedean lattice that is topologically equivalent to the Shastry-Sutherland one is studied in order to understand the fascinating magnetic propertie...
Peculiar long-range superexchange in Cu2A2O7 (A = P, As, V): a spectacle of anions
Peculiar long-range superexchange spectacle of anions
2010/11/25
A microscopic magnetic model for -Cu2P2O7 is evaluated in a combined theoretical and ex-
perimental study. Despite a dominant intradimer coupling J1, sizable interdimer couplings enforce magnetic or...
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...
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...
Spin exchange interaction with tunable range between graphene quantum dots
Spin exchange interaction tunable graphene quantum dots
2010/11/22
We study the spin exchange between two electrons localized in separate quantum dots in graphene.The electronic states in the conduction band are coupled indirectly by tunneling to a common continuum o...
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...
Time reparametrization symmetry in a short-range p-spin model
Time reparametrization symmetry short-range p-spin model
2010/11/19
We explore the existence of time reparametrization symmetry in the p-spin model. Using the Martin-Siggia-Rose generating functional, we analytically probe the long-time dynamics. We perform a Renormal...
Existence condition and range of Dirac points in deformed graphene
Existence condition range of Dirac points deformed graphene
2010/11/23
Owing to some anisotropic deformations, hopping energies t1,2,3 of graphene will be changed,
and their corresponding Dirac points can be shifted or even annihilated.
The Structure of Liquid Alloys with Chemical Short Range Order
Liquid Alloys Chemical Short Range Order
2010/4/19
We present a study of the structural properties of liquid binary alloys with chemical short range order starting from the effective interatomic pair potentials. The interatomic pair potentials are der...