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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Mattis, Daniel C. | Partially frustrated Ising models in two dimensions | We examine ordered, periodic, Ising models on a sq lattice at varying levels x of frustration. The thermodynamic singularity of the fully frustrated model (x=1) is at T=0 while those of partially frustrated lattices (0<x<1) occur at finite Tc . The critical indices in the partially frustrated latti... | Antiferromagnets; Frustration; Ising chain | 2003-06 |
| 2 |
 | Mishchenko, Eugene | Shot noise in a diffusive ferromagnetic-paramagnetic-ferromagnetic spin valve | Fluctuations of electric current in a spin valve consisting of a diffusive conductor connected to ferromagnetic leads and operated in the giant magnetoresistance regime are studied. It is shown that fluctuations due to spin-flip scattering enhance strongly shot noise up to a point where the Fano fac... | Fano factor; Shot noise | 2003-09 |
| 3 |
 | Boehme, Christoph | Theory of the time-domain measurement of spin-dependent recombination with pulsed electrically detected magnetic resonance | The theoretical foundations of the time domain measurement of spin-dependent charge carrier recombination by means of pulsed electrically detected magnetic resonance (EDMR) are outlined. Pulsed EDMR is based on the transient measurement of electrical currents in semiconductors after a coherent manip... | Spin-dependent recombination | 2003-12 |
| 4 |
 | Mishchenko, Eugene | Thermal conductivity of a two-dimensional electron gas with Coulomb interaction | We demonstrate that forward electron-electron scattering due to Coulomb interaction in a two-dimensional ballistic electron-gas leads to the (T ln T)21 temperature dependence of the thermal conductivity, which is logarithmically suppressed compared to the usual Fermi-liquid behavior. | Coulomb drag; Coulomb interaction | 2003-01 |
| 5 |
 | Mishchenko, Eugene | Transport equations for a two-dimensional electron gas with spin-orbit interaction | The transport equations for a two-dimensional electron gas with spin-orbit interaction are presented. The distribution function is a 232-matrix in the spin space. Particle and energy conservation laws determine the expressions for the electric current and the energy flow. The derived transport equ... | Spin-orbit coupling | 2003-07 |
| 6 |
 | Vardeny, Zeev Valentine | Ultrafast dynamics of excitons and solitons in disubstituted polyacetylene | We studied the ultrafast photoexcitation dynamics in disubstituted polyacetylene (DPA). We found two distinctively different relaxation channels for the photogenerated excitons; ionic and covalent pathways. In DPA films the photogenerated odd-parity (Bu) excitons that are responsible for the high ... | Ultrafast dynamics; Photoexcitation; Excitons; Disubstituted polyacetylene; Excitons; DPA; Relaxation channels | 2003-01 |
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