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Spin reorientation transition in the incommensurate stripe-ordered phase of La3/2Sr1/2NiO4

Abstract:
The spin ordering of La3/2Sr1/2NiO4 was investigated by magnetization measurements, and by unpolarized- and polarized-neutron diffraction. Spin ordering with an incommensurability epsilon ~ 0.445 is observed below T_so ~ 80 K. On cooling, a spin reorientation is observed at 57 +/- 1 K, with the spin axes rotating from 52 +/- 4 degrees to 78 +/- 3 degrees. This is the first time a spin reorientation has been observed in a La2-xSrxNiO4+delta compound having incommensurate stripe order.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.66.212405

Authors


Freeman, PG More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Prabhakaran, D More by this author
Gonzalez, D More by this author
Enderle, M More by this author
Journal:
Phys. Rev. B
Volume:
66
Issue:
21
Pages:
212405
Publication date:
2002-08-19
DOI:
EISSN:
1095-3795
ISSN:
1098-0121
URN:
uuid:2672a0f5-f78b-43c1-92e2-9aa8b532a3fe
Source identifiers:
8686
Local pid:
pubs:8686
Language:
English
Keywords:

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