کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10653670 1002902 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Suppression of spin beats in magneto-oscillation phenomena in two-dimensional electron gas
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Suppression of spin beats in magneto-oscillation phenomena in two-dimensional electron gas
چکیده انگلیسی
Theory of magneto-oscillation phenomena has been developed for two-dimensional electron systems with linear-in-k spin splitting. Both Dresselhaus and Rashba contributions are taken into account. It has been shown that the pattern of the magneto-oscillations depends drastically on the ratio between the above terms. The presence of only one type of the k-linear terms gives rise to the beats, i.e. two close harmonics corresponding to the spin-split subbands. However, if the strengths of both contributions are comparable, the third (central) harmonic appears in the spectrum of the magneto-oscillations. For equal strengths of the contributions, only the central harmonic survives, and the oscillations occur at a single frequency, although the k-linear terms remain in the Hamiltonian. Such suppression of the spin beats is studied in detail by the example of the Shubnikov-de Haas effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 133, Issue 8, February 2005, Pages 543-547
نویسندگان
, , ,