کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1546836 | 997623 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quantum confinement effects on the spin splitting and polarization of quasi-1D holes
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
We study spin splitting and polarization of hole subband edges in nanowires with cylindrical and square cross-section in the presence of a magnetic field applied along the wire direction. A general feature of the interplay between quantum confinement and the strong spin–orbit coupling in the valence band is that the g-factors of the hole–wire bound states fluctuate strongly as a function of level index. In addition, they are suppressed in comparison to g -factors found in higher-dimensional systems. We analyze the hole–spin properties of the wire levels in terms of invariants of the spin-32 density matrix and discuss effects of confinement and geometry on the hole–spin polarization and its correlation to the g-factor values.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 40, Issue 6, April 2008, Pages 2059–2062
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 40, Issue 6, April 2008, Pages 2059–2062
نویسندگان
D. Csontos, U. Zülicke,