1999/10/21 by А. Н. Лавров, A. N. Lavrov, Lavrov, A. N. +4
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Geomagnetism and Paleomagnetism Studies #Magnetic Bearings and Levitation Dynamics #Physics of Superconductivity and Magnetism #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/9910316
3 pages, 4 figures, to be published in Proceedings of the 12th International Symposium on Superconductivity, October 17-19, 1999, Morioka
arxiv created 1999/10/21 · arxiv updated 2009/11/30
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 in-plane 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.