Antiferromagnetism in NdBa/sub 2/Cu/sub 3/O/sub 6. 1/
Neutron scattering experiments performed on single crystals of NdBa/sub 2/Cu/sub 3/O/sub 6.1/ reveal antiferromagnetic order for T < T/sub N/ = 385 +- 2K in which the structure is characterized by the magnetic wave vector (1/2 1/2 1/2). The magnetic intensities are accounted for the Cu/sup + +/ spins coupled antiferromagnetically in the CuO/sub 2/ planes. The oxygen deficient layers exhibit a small staggered magnetization epsilonS which induces the spin ordering /minus/S, /minus/epsilonS, /minus/S, +S, +epsilonS, +S, along the tetragonal axis. The average staggered magnetization evaluated at room temperature is about 0.40 ..mu..BETA in the CuO/sub 2/ planes and about 0.04 ..mu..BETA in the oxygen deficient layers. 8 refs., 2 figs., 1 tab.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6844955
- Report Number(s):
- BNL-41514; CONF-880715-7; ON: DE88016577
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETISM
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
LAYERS
MAGNETIC MOMENTS
MAGNETISM
MONOCRYSTALS
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SCATTERING
TRANSITION ELEMENT COMPOUNDS