Now showing items 21-30 of 246
Andreev reflection and spin injection intod-wave,p-wave, ands-wave superconductors
The effect of spin injection into d-wave, p-wave, and s-wave superconductors is studied here. A theory is developed which treats the interplay between the bulk and boundary spin transport, as well as the interplay between ...
Transport equation for disordered interacting electrons in two-dimensional and magnetic metal
We develop a transport formalism for interacting electrons in the presence of quenched disorder. Quantum effects on transport, due both to quantum interference and interaction effects, are incorporated through non-analytic ...
Ultrafast optical spectroscopy of single-walled carbon nanotubes
Wavelength-dependent, near-infrared pump-probe study of micelle-suspended Single-Walled Carbon Nanotubes (SWCNTs) whose linear absorption spectra show chirality-assigned peaks is presented. Two distinct relaxation regimes ...
Bose-Einstein condensation of lithium
Bose-Einstein condensation (BEC) in ultra-cold magnetically-trapped $\sp7$Li vapor was experimentally observed and quantitative measurements of condensate number were made. Compared to other BEC experiments, lithium is ...
Continued growth of single-walled carbon nanotubes from open-ended SWNT substrates
We prepared nanoscopically flat open-ended SWNT substrates from SWNT spun fibers by using the microtome cutting technique or the focused ion beam cutting technique followed by various etching and cleaning schemes or ...
Non-Fermi liquid states in strongly correlated electron systems
In this thesis, we develop a dynamical mean field approach to strongly correlated electron systems. Our approach is based on the standard limit of infinite dimensions but goes beyond that by treating inter-unit-cell ...
I. Frozen moments in a superconductor. II. Gyromagnetic effect in a superconductor
Abstract Not Available.
Spectroscopy of III-V narrow gap semiconductor quantum wells
The narrow gap III-V semiconductors, InAs/AlSb/GaSb and InSb, exhibit an array of extreme physical properties, from the lightest effective mass and largest nonparabolicity of III-V semiconductors to heterostructure conduction ...
Long-range order of magnetic nanocluster lattices and surface acoustic wave applications of lithium niobate thin films
Part I. We have investigated theoretically the interactions and phase transitions of arrays of magnetic nanoclusters embedded in nonmagnetic metals and semiconductors. Two nanoclusters of ferromagnetic elements embedded ...
Investigation and manipulation of new fullerene derivative molecules by scanning tunneling microscopy
This paper discusses the investigation and manipulation by scanning tunneling microscopy of new fullerene derivative molecules synthesized specifically to achieve nanoscale motion. Two, three, and four-fullerene molecules ...