JAIST Repository >
School of Materials Science >
Articles >
Journal Articles >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/4602

Title: Fourfold symmetric anisotropy in the CuO_2 planes of 60-K-Yba_2Cu_3O_〈7-δ〉 single crystals
Authors: Naito, Tomoyuki
Haraguchi, Seiya
Iwasaki, Hideo
Sasaki, Takahiko
Nishizaki, Terukazu
Shibata, Kenji
Kobayashi, Norio
Issue Date: 2001-04-11
Publisher: American Physical Society
Magazine name: Physical Review B
Volume: 63
Number: 17
Start page: 172506-1
End page: 172506-4
DOI: 10.1103/PhysRevB.63.172506
Abstract: To study the anisotropy in the CuO_2 planes, the in-plane resistivity ρ has been measured on 60 K YBa_2Cu_3O_<7-δ> (YBCO) single crystal as a function of the angle θ between the directions of a magnetic field H and of the b axis under magnetic fields precisely parallel to the CuO_2 planes. Angular dependence of the resistivity ρ(θ) is mainly described by the fourfold symmetry, and a dip structure appears in ρ(θ) when the magnetic field is applied parallel to the a and b axes. The fourfold symmetry of the in-plane anisotropy of the resistivity is first observed in YBCO system. It is shown that the obtained results have a very close relation to the anisotropy which comes from the superconducting energy gap of the d-wave pairing with d_<x2-y2> symmetry and the effect of the directional vortex pinning.
Rights: T. Naito, S. Haraguchi, H. Iwasaki, T. Sasaki, T. Nishizaki, K. Shibata, and N. Kobayashi, Physical Review B, 63(17), 2001, 172506-1-172506-4. Copyright 2001 by the American Physical Society. http://link.aps.org/abstract/PRB/v63/e172506
URI: http://hdl.handle.net/10119/4602
Material Type: publisher
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

Files in This Item:

File Description SizeFormat
6829.pdf163KbAdobe PDFView/Open

All items in DSpace are protected by copyright, with all rights reserved.


Contact : Library Information Section, Japan Advanced Institute of Science and Technology