کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1800922 1024551 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Many-body theory of magnetization of Bloch electrons in the presence of spin–orbit interactions
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Many-body theory of magnetization of Bloch electrons in the presence of spin–orbit interactions
چکیده انگلیسی

We derive a theory of magnetization of an interacting electron system in the presence of a periodic potential, spin–orbit interaction and an applied magnetic field in the paramagnetic limits. Starting from a thermodynamic potential, which includes both the quasi-particle and correlation contributions, we show that modifications brought about by the electron–electron interactions for the magnetization in the quasi-particle approximation is precisely cancelled by the contributions due to electron correlations.This is in contrast to the explicit many-body effects seen in case of the magnetic susceptibility and the Knight-shift. The magnetization is expressed as a product of the spin-density and the effective g-factor, mainly due to the spin–orbit interaction. We show the importance of self-energy corrections on the single-particle energy spectrum by considering a variant of the Hubbard Hamiltonian in momentum space.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 322, Issue 1, January 2010, Pages 88–91
نویسندگان
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