Electron Liquids in Semiconductor Quantum Structures

Pinczuk, Aron

National Science Foundation (U.S.)

关键词: Liquid Crystals;    Spectra;    Magnetic Fields;    Spectroscopy;    Fermions;   

RP-ID  :  DOE/ER46133
RP-ID  :  AI02-04ER46133
RP-ID  :  1028127

美国|英语

来源: UNT Digital Library

【 摘 要 】

The groups led by Stormer and Pinczuk have focused this project on goals that seek the elucidation of novel many-particle effects that emerge in two-dimensional electron systems (2DES) as the result from fundamental quantum interactions. This experimental research is conducted under extreme conditions of temperature and magnetic field. From the materials point of view, the ultra-high mobility systems in GaAs/AlGaAs quantum structures continue to be at the forefront of this research. The newcomer materials are based on graphene, a single atomic layer of graphite. The graphene research is attracting enormous attention from many communities involved in condensed matter research. The investigated many-particle phenomena include the integer and fractional quantum Hall effect, composite fermions, and Dirac fermions, and a diverse group of electron solid and liquid crystal phases. The Stormer group performed magneto-transport experiments and far-infrared spectroscopy, while the Pinczuk group explores manifestations of such phases in optical spectra.