搜索结果: 16-30 共查到“知识库 表与界面物理学”相关记录39条 . 查询时间(2.945 秒)
Spin connection and boundary states in a topological insulator
Spin connection boundary states topological insulator
2010/11/17
We study the surface resistivity of a three-dimensional topological insulator when the boundaries exhibit a non trivial curvature. We obtain an analytical solution for a spherical topological insulato...
Bosonic enhancement of spontaneous emission near an interface
Bosonic enhancement spontaneous emission
2010/11/24
We show how the spontaneous emission rate of an excited two-level atom placed in a trapped Bose-Einstein condensate of ground-state atoms is enhanced by bosonic stimulation. This stimulation depends o...
Percolation-to-hopping crossover in conductor-insulator composites
Percolation-to-hopping crossover conductor-insulator composites
2010/11/17
Here, we show that the conductivity of conductor-insulator composites in which electrons can
tunnel from each conducting particle to all others may display both percolation and tunneling (i.e.,hoppin...
Dynamic susceptibility of a spin-ice near the critical point
Dynamic susceptibility spin-ice near the critical point
2010/11/23
We consider spin ice magnets (primarily, Dy2Ti2O7) in the vicinity of their critical point on the (H, T )plane. We find that the longitudinal susceptibility diverges at the critical point, leading to ...
Regularization of the spectral problem for the monolayer graphene with the separable in the angular momentum representation singular potential of defect
Regularization of the spectral problem separable
2010/11/18
The electronic states in the monolayer graphene with the short-range perturbation asymmetric
with respect to the band index are analized. The study was made for the separable in the angular momentum ...
Boundary conditions in the Dirac approach to graphene devices
Boundary conditions graphene devices
2010/11/22
We study a family of local boundary conditions for the Dirac problem corresponding to the continuum limit of graphene, both for nanoribbons and nanodots. We show that, among the members
of such famil...
Self-Organized Criticality in Proteins: Hydropathic Roughening Profiles of G-Protein Coupled Receptors
Proteins: Hydropathic Roughening Profiles G-Protein Coupled Receptors
2010/11/24
Proteins appear to be the most dramatic natural example of self-organized criticality (SOC), a concept that explains many otherwise apparently unlikely phenomena. Protein conformational functionality ...
We report on the numerical measures on different spin interfaces and FK cluster boundaries
in the Askhin-Teller (AT) model. For a general point on the AT critical line, we find that the
fractal dime...
The renormalized Jellium model of colloidal suspensions with multivalent counterions
renormalized Jellium model multivalent counterions
2010/11/22
An extension of the renormalized Jellium model which allows to study colloidal suspensions containing trivalent counterions is proposed. The theory is based on a modified Poisson-Boltzmann equation wh...
Dimensional crossover in topological matter: Evolution of the multiple Dirac point in the layered system to the flat band on the surface
Dimensional crossover topological matter multiple Dirac point
2010/11/24
We consider the dimensional crossover in the topological matter, which involves the ransformation of different types of topologically protected zeroes in the fermionic spectrum. In the considered case...
Enhanced stability of hydrogen atoms at the graphene/graphane interface of nanoribbons
Enhanced stability of hydrogen atoms graphene/graphane interface of nanoribbons
2010/11/24
The thermal stability of graphene/graphane nanoribbons (GGNRs) is investigated using density functional theory. It is found that the energy barriers for the diffusion of hydrogen atoms on the zigzag a...
Magnetic reversal processes and critical thickness in FePt/α-Fe/FePt trilayers
nucleation field coercivity pinning field hysteresis loop critical thickness
2010/11/24
Magnetic reversal processes of a FePt/α-Fe/FePt trilayer system with in-plane easy axes have been investigated within a micromagnetic approach. It is found that the magnetic reversal process consists ...
Intercalation of a Nonionic Surfactant (C10E3) bilayer into a Na-Montmorillonite Clay
Intercalation of a Nonionic Surfactant (C10E3) bilayer Na-Montmorillonite Clay
2010/11/23
A nonionic surfactant, the tri-ethylene glycol mono n-decyl ether (C10E3), characterized by its lamellar phase state, was introduced in the interlayer of a Na-montmorillonite clay at several concentra...
We report a simple route to form robust, inorganic, semi-permeable compartments composed of
montmorillonite, a natural plate-like clay mineral that occurs widely in the environment.
Mechanical force...
Contact process with a defect: universal oasis, nonuniversal scaling
Contact process defect: universal oasis nonuniversal scaling
2010/11/23
The extinction transition in the presence of a localized quenched defect is studied umerically.
When the bulk is at criticality, the correlation length diverges and even an infinite system cannot ”de...