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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 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 1999/01 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 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 |
| 掲載区分 | 国外 |
| 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 |