Moessbauer Effects and Magnetic Properties of Mixed Valent Europium Sulfide, EuPd

Journal Article · Thu Feb 15 04:00:00 EST 2001 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1006/jssc.2000.9047· OSTI ID:783960

Wakeshima, Makoto; Doi, Yoshihiro; Hinatsu, Yukio

EuPd{sub 3}S{sub 4} with a NaPt{sub 3}O{sub 4}-type structure was investigated by X-ray diffraction, {sup 151}Eu Moessbauer spectroscopy, magnetic susceptibility, and specific heat measurements. In this compound, Eu{sup 2+} and Eu{sup 3+} ions exist in the ratio of ca. 1:1. The Debye temperatures of Eu{sup 2+} and Eu{sup 3+} were determined to be 195 and 220 K, respectively. The isomer shift of Eu{sup 2+} in this EuPd{sub 3}S{sub 4} at 300 K is largest among Eu{sup 2+} sulfides because of the compression effect of the Eu{sup 2+} sites. The temperature dependence of the isomer shifts suggests that a hopping of the electron between Eu{sup 2+} and Eu{sup 3+} occurs in EuPd{sub 3}S{sub 4}. The Eu{sup 2+} ion was found to be in the antiferromagnetic state below 3 K from both the magnetic susceptibility and specific heat measurements.

• Research Organization: Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo (JP)
• Sponsoring Organization: Ministry of Education, Science, Sports, and Culture of Japan (MONBUSHO) (US)
• OSTI ID: 783960
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 1 Vol. 157; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETISM
COMPRESSION
CRYSTAL STRUCTURE
DEBYE TEMPERATURE
ELECTRONS
EUROPIUM IONS
EUROPIUM SULFIDES
EXPERIMENTAL DATA
ISOMER SHIFT
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MOESSBAUER EFFECT
PALLADIUM SULFIDES
SPECIFIC HEAT
SPECTROSCOPY
SULFIDES
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION