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Antiferromagnetism of La/sub 2/CuO/sub 4-//sub y/ studied by muon-spin rotation

Journal Article · · Phys. Rev. Lett.; (United States)
Zero-field spin precession of positive muons has been observed in the antiferromagnetic state of La/sub 2/CuO/sub 4-//sub y/. Sharp onsets of the sublattice magnetization are found at temperatures close to those of the susceptibility maxima of different specimens. The long-lived precession signal indicates a microscopically homogeneous distribution of spin density at each Cu atom below the Neel temperature. Combination of the present results and neutron-scattering studies indicates the ordered moment per Cu atom to be significantly less than 1..mu../sub B/.
Research Organization:
Brookhaven National Laboratory, Upton, New York 11973
DOE Contract Number:
AC02-76CH00016
OSTI ID:
6252539
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 59:9; ISSN PRLTA
Country of Publication:
United States
Language:
English