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Titolo:
PARAMAGNETIC SPECTRAL RESPONSE OF CEPD3 - A COMPARATIVE INVESTIGATIONOF NEUTRON INELASTIC-SCATTERING FROM SINGLE-CRYSTAL AND POLYCRYSTALLINE SAMPLES
Autore:
MURANI AP; SEVERING A; MARSHALL WG;
Indirizzi:
INST MAX VON LAUE PAUL LANGEVIN,156X F-38042 GRENOBLE FRANCE
Titolo Testata:
Physical review. B, Condensed matter
fascicolo: 5, volume: 53, anno: 1996,
pagine: 2641 - 2650
SICI:
0163-1829(1996)53:5<2641:PSROC->2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
VALENCE COMPOUND CEPD3; 2 ENERGY SCALES; ABSORPTION-SPECTROSCOPY; TEMPERATURE-DEPENDENCE; MAGNETIC-BEHAVIOR; CE; ALLOYS; CESN3;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
A.P. Murani et al., "PARAMAGNETIC SPECTRAL RESPONSE OF CEPD3 - A COMPARATIVE INVESTIGATIONOF NEUTRON INELASTIC-SCATTERING FROM SINGLE-CRYSTAL AND POLYCRYSTALLINE SAMPLES", Physical review. B, Condensed matter, 53(5), 1996, pp. 2641-2650

Abstract

We report a comparative neutron inelastic-scattering study of single-crystal and polycrystalline samples of CePd3 with the aim to resolve conflicting claims concerning the form of the paramagnetic spectral response of the compound. The present measurements show that the inelastic scattering particularly at low scattering angles is very similar forboth samples. We find also that the observed scattering at energies below 30 meV is mostly nonmagnetic. At low angles it is dominated by multiple-scattering processes in the relatively large samples used for the measurements. Magnetic scattering occurs predominantly at high energies and can be represented by a single-ion spectral function centeredon a characteristic energy of similar to 50-55 meV, in good accord with previous findings from time-of-flight and polarized neutron measurements on a triple-axis spectrometer.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 14:47:29