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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 | 2000 |
| 形態種別 | 研究論文（国際会議プロシーディングス） |
| 標題 | Manifestations of the charged stripes in the magnetoresistance of heavily underdoped YBa2Cu3O6+x |
| 執筆形態 | その他 |
| 掲載誌名 | ADVANCES IN SUPERCONDUCTIVITY XII |
| 掲載区分 | 国外 |
| 出版社・発行元 | SPRINGER-VERLAG TOKYO |
| 巻・号・頁 | pp.152-154 |
| 著者・共著者 | AN Lavrov,Y Ando,K Segawa |
| 概要 | We present a study of the in-plane and out-of-plane magnetoresistance (MR) in heavily-underdoped, antiferromagnetic YBa2Cu3O6+x, which reveals a variety of striking features. The inplane MR demonstrates a "d-wave"-like anisotropy upon rotating the magnetic field H within the ab plane. With decreasing temperature below 20-25 K the system acquires memory: exposing a crystal to the magnetic field results in a persistent in-plane resistivity anisotropy. The overall features can be explained by assuming that the CuO2 planes contain a developed array of stripes accommodating the doped holes, and that the MR is associated with the field-induced topological ordering of the stripes. |