Surface acoustic wave wavelength and temperature dependence of the induced periodic density modulation effect at ν=1/2

Autor:	L. N. Pfeiffer, R. L. Willett, Ken W. West
Rok vydání:	1998
Předmět:	Physics Wavelength Condensed matter physics Filling factor Modulation Surface acoustic wave Composite fermion Fermi surface Acoustic wave Electrical and Electronic Engineering Quantum Hall effect Condensed Matter Physics Electronic Optical and Magnetic Materials
Zdroj:	Physica B: Condensed Matter. :215-219
ISSN:	0921-4526
DOI:	10.1016/s0921-4526(98)00682-6
Popis:	The effects of a tunable periodic density modulation imposed upon a 2D electron system have been probed using surface acoustic waves. A substantial effect is induced at filling factor 1/2 in which the Fermi surface properties of the composite fermion are anisotropically replaced by features similar to those seen in quantum Hall states. The response measured using different SAW wavelengths and similarities in the temperature dependence between the modulation induced features at 1/2 and quantum Hall states are described.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ab9b586bf8cbebbe334e9460fb9a41f https://doi.org/10.1016/s0921-4526(98)00682-6 Zobrazit plný text záznamu Full Text from ScienceDirect