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Phys. Rev. B 42, 6857–6860 (1990)

Nuclear antiferromagnetism in copper: Interplay of (0,2/3,2/3) and (1,0,0) order

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H. E. Viertiö
Research Institute for Theoretical Physics, University of Helsinki, SF-00170 Helsinki, Finland

A. S. Oja
Low Temperature Laboratory, Helsinki University of Technology, SF-02150 Espoo, Finland

Received 21 June 1990; published in the issue dated 1 October 1990

The magnetic phase diagram of nuclear spins in copper, an ideal fcc system, is investigated. The recently observed interplay of the antiferromagnetic (0, 2/3, 2/3) and (1,0,0) order at nanokelvin temperatures is explained by using the concept of permanent spin structures. At low fields, the strongly anisotropic spin interactions stabilize the field-induced (0, 2/3, 2/3) order which coexists with the (1,0,0) order in a single magnetic domain. The spin structure at zero field and at high fields is of the (1,0,0)-type.

© 1990 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.42.6857
DOI:
10.1103/PhysRevB.42.6857
PACS:
75.25.+z, 75.50.Ee, 75.30.Kz, 75.10.Hk
 
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