کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1814032 1025643 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Small polaron mass with a long range density–displacement type interaction
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Small polaron mass with a long range density–displacement type interaction
چکیده انگلیسی

In this work renormalization of the effective mass of an electron due to a small polaron formation is studied within the framework of the extended Holstein model. It is assumed that an electron moves along the one-dimensional chain of ions and interacts with ions vibrations of a neighboring chain via a long-range density–displacement type force. By means of the exact calculations a renormalized mass of a nonadiabatic small polaron is obtained at strong coupling limit. The obtained results compared with the mass of small polaron of ordinary Holstein model. The effect of ions vibrations polarization on the small polaron mass is addressed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 404, Issue 20, 1 November 2009, Pages 3756–3760
نویسندگان
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