Published November 12, 1986 | Version v1
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Spin-waves in the uniaxial spin-glass system Fe/sub 1-x/Mg/sub x/Cl2

Description

We report as inelastic neutron scattering study of the uniaxial dilute antiferromagnets Fe/sub 1-x/Mg/sub x/Cl2, for x = 0.3, 0.45 and 0.6. The first two samples have long-range AF order. Their spin-wave peaks are broadened by the exchange fluctuations. The x = 0.6 sample oders like an Ising spin-glass with a very short AF correlation length (ξ ≅ 10 A). For wavelength λ ≤ ξ, the spin-wave peaks are similar to the dilute antiferromagnets, but for λ ≤ 2ξ, the peak shapens up and becomes resolution limited at the zone center. We give a simple explanation of this behavior. 13 refs., 1 fig

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS, PC A02/MF A01; 1 as DE87004246.

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Additional details

Additional titles

Augmented title (English)
Fe/sub 1-x/Mg/sub x/Cl_2 for x = 0.3, 0.45 and 0.6

Publishing Information

Imprint Pagination
13 p.
Report number
BNL--39054

Conference

Title
Conference on magnetism and magnetic materials.
Dates
17-21 Nov 1986.
Place
Baltimore, MD (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
18062951
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ANTIFERROMAGNETIC MATERIALS; EXPERIMENTAL DATA; NEUTRONS; SPECTRA; SPIN GLASS STATE; SPIN WAVES
Descriptors DEC
BARYONS; DATA; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INFORMATION; MAGNETIC MATERIALS; MATERIALS; NUCLEONS; NUMERICAL DATA

Optional Information

Notes
Portions of this document are illegible in microfiche products.
Secondary number(s)
CONF-861111--20.