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Relaxation of local moments diluted in CePd{sub 3}-intermediate valence compound

Technical Report:

Abstract

Anomalous thermal behaviour on EPR linewidths has been observed for Gd impurities diluted in CePd{sub 3}-intermediate valent compound. In this work we show that the exchange interaction between the local magnetic moments and the intermediate valence host ions has an important contribution to the relaxation rates of the local moments. The relaxation is calculated using the Red-field formalism and the ideas contained in the interconfigurational fluctuation model of Hirst. We show that the exchange interaction contribution has an exponential dependence on the excitation energy of the intermediate valent ions. (author). 22 refs, 1 fig.
Authors:
Venegas, P; [1]  Barberis, G [2] 
  1. International Centre for Theoretical Physics, Trieste (Italy)
  2. Universidade Estadual de Campinas, SP (Brazil). Inst. de Fisica
Publication Date:
Sep 01, 1991
Product Type:
Technical Report
Report Number:
IC-91/280
Reference Number:
SCA: 665100; PA: AIX-23:015822; SN: 92000647327
Resource Relation:
Other Information: PBD: Sep 1991
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; PALLADIUM COMPOUNDS; EXCHANGE INTERACTIONS; CERIUM COMPOUNDS; ELECTRON SPIN RESONANCE; GADOLINIUM; RELAXATION; 665100; NUCLEAR TECHNIQUES IN CONDENSED MATTER PHYSICS
OSTI ID:
10113462
Research Organizations:
International Centre for Theoretical Physics (ICTP), Trieste (Italy)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ON: DE92615488; TRN: XA9130270015822
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
8 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Venegas, P, and Barberis, G. Relaxation of local moments diluted in CePd{sub 3}-intermediate valence compound. IAEA: N. p., 1991. Web.
Venegas, P, & Barberis, G. Relaxation of local moments diluted in CePd{sub 3}-intermediate valence compound. IAEA.
Venegas, P, and Barberis, G. 1991. "Relaxation of local moments diluted in CePd{sub 3}-intermediate valence compound." IAEA.
@misc{etde_10113462,
title = {Relaxation of local moments diluted in CePd{sub 3}-intermediate valence compound}
author = {Venegas, P, and Barberis, G}
abstractNote = {Anomalous thermal behaviour on EPR linewidths has been observed for Gd impurities diluted in CePd{sub 3}-intermediate valent compound. In this work we show that the exchange interaction between the local magnetic moments and the intermediate valence host ions has an important contribution to the relaxation rates of the local moments. The relaxation is calculated using the Red-field formalism and the ideas contained in the interconfigurational fluctuation model of Hirst. We show that the exchange interaction contribution has an exponential dependence on the excitation energy of the intermediate valent ions. (author). 22 refs, 1 fig.}
place = {IAEA}
year = {1991}
month = {Sep}
}