Abstract

Neutron scattering measurements for YBa2Cu3O6.6 have identified small magnetic moments that increase in strength as the temperature is reduced below T* and further increase below Tc. An analysis of the data shows the moments are antiferromagnetic between the Cu-O planes with a correlation length of longer than 195 Å in the a-b plane and about 35 Å along the c axis. The origin of the moments is unknown, and their properties are discusssed both in terms of Cu spin magnetism and orbital bond currents.

Department(s)

Materials Science and Engineering

Keywords and Phrases

barium derivative; copper derivative; yttrium; chemical bond; conductance; conductor; magnetism; neutron scattering; temperature dependence

International Standard Serial Number (ISSN)

1631829

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2001 American Physical Society (APS), All rights reserved.

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