セガワ コウジ   SEGAWA KOJI
  瀬川 耕司
   所属   京都産業大学  理学部 物理科学科
   職種   教授
言語種別 英語
発行・発表の年月 1999/01/01
形態種別 研究論文
標題 Magnetoresistance anomalies in antiferromagnetic YBa2Cu3O6+x: Fingerprints of charged stripes
執筆形態 その他
掲載誌名 Physical Review Letters
巻・号・頁 83(14),pp.2813-2816
著者・共著者 Yoichi Ando,A. N. Lavrov,Kouji Segawa
概要 We report novel features in the in-plane magnetoresistance (MR) of heavily underdoped YBa 2Cu 3O 6+x, which unveil a developed “charged stripe” structure in this system. One of the striking features is an anisotropy of the MR with a “ d-wave”-like symmetry upon rotating the magnetic field H within the ab plane, which is caused by the rotation of the stripes with the external field. With decreasing temperature, a hysteresis shows up below ˜20 K in the MR curve as a function of H and finally below 10 K the magnetic-field application produces a persistent change in the resistivity. This “memory effect” is caused by the freezing of the directionally ordered stripes. © 1999 The American Physical Society.
DOI 10.1103/PhysRevLett.83.2813
ISSN 1079-7114
PermalinkURL https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0032613466&origin=inward