ニシオ ユタカ   Nishio Yutaka
  西尾 豊
   所属   東邦大学  理学部 物理学科
   職種   教授
論文種別 原著
言語種別 英語
査読の有無 査読あり
表題 Spin and Valley Splittings in Multilayered Massless Dirac Fermion System
掲載誌名 正式名:Physical review B
略  称:Phys. rev. B
巻・号・頁 82(12),121420頁
著者・共著者 Tajima N, Sato M, Sugawara S, Kato R, Nishio Y, Kajita K.
発行年月 2010/09
概要 The interlayer magnetoresistance in a multilayered massless Dirac fermion system, α(BEDT-TTF)2I3, under hydrostatic pressure was investigated. We succeeded in detecting the zero-mode n=0 Landau level and its spin splitting in the magnetic field normal to the two-dimensional plane. We demonstrated that the effective Coulomb interaction in the magnetic field intensifies the spin splitting of zero-mode Landau carriers. At temperatures below 2 K, magnetic fields above several Tesla break the twofold valley degeneracy.
DOI 10.1103/PhysRevB.82.121420