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Confirmation of antiferromagnetism in La/sub 2/CuO/sub 4-//sub y/ with polarized neutrons

Journal Article · · Phys. Rev. B: Condens. Matter; (United States)
We have used neutron polarization analysis to study the superlattice peaks observed recently in undoped La/sub 2/CuO/sub 4-//sub y/ using unpolarized powder neutron diffraction. The results confirm that the superlattice peaks are indeed due to antiferromagnetic ordering, which occurs for our sample below T/sub N/ = 290 +- 30 K, in agreement with our magnetic susceptibility data which yield T/sub N/ = 290 +- 10 K. The low-temperature moment on the Cu ion is estimated as 0.43 +- 0.13..mu../sub B/ in agreement with the previous estimates.
Research Organization:
Institute for Solid State Physics, University of Tokyo, Tokyo 106, Japan
OSTI ID:
5923260
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:1; ISSN PRBMD
Country of Publication:
United States
Language:
English