Flat-Bands on Partial Line Graphs : Systematic Method for Generating Flat-Band Lattice Structures(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
- 論文の詳細を見る
We introduce a systematic method for constructing a class of lattice structures that we call "partial line graphs". In tight-binding models on partial line graphs, energy bands with flat energy dispersions emerge. This method can be applied to two- and three-dimensional systems. We show examples of partial line graphs of square and cubic lattices. The method is useful in providing a guideline for synthesizing materials with flat energy bands, since the tight-binding models on the partial line graphs provide us a large room for modification, maintaining the flat energy dispersions.
- 一般社団法人日本物理学会の論文
- 2005-07-15
著者
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SHIMOMURA Yoshihiro
Department of Physics and Mathematics, Aoyama Gakuin University
-
Furukawa Nobuo
Department Of Physics And Mathematics Aoyama Gakuin University
-
Miyahara Shin
Department Of Physics And Mathematics Aoyama Gakuin University
-
Ono Hiroshi
Department Of Agronomy Faculty Of Agriculture Tottori University
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KUBO Kenn
Department of Physics and Astronomy,Michigan State University
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