Spontaneous spin polarization in a quantum wire
نویسندگان
چکیده
منابع مشابه
Spontaneous spin polarization in quantum point contacts.
We use spatial spin separation by a magnetic focusing technique to probe the polarization of quantum point contacts. The point contacts are fabricated from p-type GaAs/AlGaAs heterostructures. A finite polarization is measured in the low-density regime, when the conductance of a point contact is tuned to < 2e2/h. Polarization is stronger in samples with a well-defined "0.7 structure."
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Jun-Feng Liu,1 Zhi-Cheng Zhong,1,2 Lei Chen,1 Dingping Li,1 Chao Zhang,3 and Zhongshui Ma1 1School of Physics, Peking University, Beijing 100871, China 2MESA Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands 3School of Engineering Physics, University of Wollongong, New South Wales 2552, Australia Received 18 April 2007; revised manuscript received 21 July 200...
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ژورنال
عنوان ژورنال: Nanotechnology
سال: 2000
ISSN: 0957-4484,1361-6528
DOI: 10.1088/0957-4484/11/4/329