セミナー情報

兵庫県立大学フロンティア機能物質創製センター・オープンセミナー(第17回)
共催:量研機構・原子力機構・兵県大合同物性コロキウム(第96回)

17th Open Seminar of Resear Center for New Functional Materials
96th QST-JAEA-UH Joint Condensed Matter Colloquium

日時: 平成28年8月19日(金) 15:00〜16:00
Date and time: 19th Aug. (Fri.) 15:00-16:00
場所: 兵庫県立大学理学部 研究棟7階739号室
Place: Lecture Room 739 (7F), Faculty of Science, University of Hyogo
Title: Quantum Hall effect and energies in α-(BEDT-TTF)2I3 studied in the tight-binding model
講演者: 岸木敬太 氏 (熊本大学)
Speaker: Keita Kishigi (Kumamoto University)
Abstract:

α-(BEDT-TTF)2I3 is a quasi-two-dimensional organic conductor, in which massless Dirac Fermions are realized. In this study, the energies for α-(BEDT-TTF)2I3 in the magnetic field (H) are numerically calculated by using a tight-binding model. Although the theoretical studies have been done by the linearlization near the Fermi energy of 3/4-filling, the study by the tight-binding model has never been done, as far as we know. We show that the magnetic field-dependence of the energies is changed from H to H2/3 when two Dirac points are merging. We also investigate the quantized integer Hall conductance.


世話人: 坂井徹 (兵庫県立大、量研機構SPring-8)
筒井健二(量研機構SPring-8)
中野博生(兵庫県立大)
Organizers: Toru Sakai(University of Hyogo, QST SPring-8)
Kenji Tsutsui(QST Pring-8)
Hiroki Nakano(University of Hyogo)