Proposed measurements of the phase‐coherence length in a two‐dimensional electron gas at high magnetic fields
作者:
Hiroshi Hirai,
Susumu Komiyama,
Kazuo Nakamura,
Fumiyuki Nihey,
期刊:
Journal of Applied Physics
(AIP Available online 1992)
卷期:
Volume 71,
issue 9
页码: 4390-4398
ISSN:0021-8979
年代: 1992
DOI:10.1063/1.350777
出版商: AIP
数据来源: AIP
摘要:
Coherence effects appearing in the two‐terminal conductance of a series of quantum point contacts are theoretically studied for zero and finite temperatures and for arbitrary phase coherence lengths in the regime of quantized Hall effects. Experimental geometries to determine the phase coherence length are proposed and the conductance in the geometries is quantitatively analyzed by using the Landauer–Bu¨ttiker approach.
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