Magnetic-field-induced instabilities in localized two-dimensional electron systems
نویسندگان
چکیده
منابع مشابه
Field-induced resonant tunneling between parallel two-dimensional electron systems
Resonant tunneling (RT) has by now been observed in a wide variety of semiconductor systems.’ The commonest configuration, the so-called double-barrier structure, typically consists of a single GaAs quantum well sandwiched between two AlGaAs barriers. Above and below the barriers are heavily doped GaAs regions serving as source and drain, Application of a dc bias voltage can induce RT via the e...
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Two-dimensional (2D) electrons in an in-plane magnetic field become fully spin polarized above a field BP , which we can determine from the in-plane magnetoresistance. We perform such measurements in modulation-doped AlAs electron systems, and find that the field BP increases approximately linearly with 2D electron density. These results imply that the product |g∗|m∗, where g∗ is the effective ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2008
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.78.161306