Now showing items 1-6 of 6
Chaotic transport in low-dimensional superlattices
(American Physical Society, 2003-02)
We predict that in arrays of quantum dots (0D superlattice) and arrays of one-dimensional quantum wires (1D superlattice) chaotic transport should be observed in the presence of an ac field and for a wide range of physical ...
Nanostructure and velocity of field-driven solid-on-solid interfaces moving under a phonon-assisted dynamic
(American Physical Society, 2007-07)
The nanoscopic structure and the stationary propagation velocity of (1+1)-dimensional solid-on-solid interfaces in an Ising lattice-gas model, which are driven far from equilibrium by an applied force, such as a magnetic ...
Hole dynamics and effective hole-hole interaction in a quantum antiferromagnet
(American Physical Society, 1991-04)
By the use of an effective Hamiltonian which takes into account the constraint on the motion of holes in a quantum antiferromagnet, the dynamics of holes is investigated. It is found that there is a quasiparticle band whose ...
Wulff shapes and the critical nucleus for a triangular Ising lattice
(American Physical Society, 2001-02)
Equilibrium Wulff shapes and interfacial energies of two-dimensional "crystals" on a triangular lattice are considered. Asymptotic approximations are constructed for both the shapes and energies in the limit T-->0 where ...
Relevance of space anisotropy in the critical behavior of m-axial Lifshitz points
(American Physical Society, 2003-12)
The critical behavior of d-dimensional systems with n-component order parameter phi is studied at an m-axial Lifshitz point where a wave-vector instability occurs in an m-dimensional subspace R-m (m>1). Field theoretic ...
Local aging phenomena close to magnetic surfaces
(American Physical Society, 2007-09)
Surface aging phenomena are discussed for semi-infinite systems prepared in a fully disordered initial state and then quenched to or below the critical point. In addition to solving exactly the semi-infinite Ising model ...