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

Journal Article · Thu Feb 15 00:00:00 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, Vol. 157, Issue 1; Other Information: PBD: 15 Feb 2001; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

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