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Parks, R.D.; Kupferberg, L.C.; Croft, M.C.; Shapiro, S.M.; Gurewitz, E.
Rochester Univ., NY (USA); Rutgers--the State Univ., Piscataway, NJ (USA); Brookhaven National Lab., Upton, NY (USA)1978
Rochester Univ., NY (USA); Rutgers--the State Univ., Piscataway, NJ (USA); Brookhaven National Lab., Upton, NY (USA)1978
AbstractAbstract
[en] Magnetostriction and thermal expansion measurements on CeAl2 in and near the antiferromagnetic (AF) phase have established the AF phase boundary in the H-T plane; the nature of the reorientation of the AF domains in field, the evolution of the AF order parameter in field and the nature of the AF fluctuations above T/sub N/; and that the magnetic exchange between Ce atoms is ferromagnetic in large fields. Inelastic neutron scattering measurements reveal a new and yet unexplained feature at 17.5 MeV. The compound CeAl2 is an Anderson lattice system in the local moment regime, which appears to display a competition between spin fluctuations and indirect magnetic exchange. In this paper we summarize the results of an extensive study of the macroscopic thermodynamic properties of CeAl2 and present some preliminary results of an ongoing neutron scattering study
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Source
1978; 7 p; Colloque of physics of the metallic rare earths; St. Pierre De Chartreuse, France; 4 - 7 Sep 1978; CONF-780913--3; Available from NTIS., MF A01
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
ALUMINIUM BASE ALLOYS, ANTIFERROMAGNETIC MATERIALS, BOUNDARY CONDITIONS, CERIUM ALLOYS, DOMAIN STRUCTURE, FERROMAGNETIC MATERIALS, INELASTIC SCATTERING, INTERMETALLIC COMPOUNDS, NEUTRON DIFFRACTION, NEUTRON REACTIONS, ORDER PARAMETERS, ORIENTATION, PHASE STUDIES, THERMODYNAMIC PROPERTIES, VARIATIONS
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