TY - JOUR
T1 - Mixed valencies of Eu in intermetallic compounds with the CaSu5 structure
AU - Bauminger, E. R.
AU - Felner, I.
AU - Ofer, S.
PY - 1978
Y1 - 1978
N2 - The Mössbauer spectra of EuNixZn5-x and EuNixCu5-x compounds are composed of three subspectra: one corresponding to Eu2+, one to Eu3+ and one to Eu in a mixed valence state. The mixed valency is interpreted in terms of last fluctuations between 4f6 and 4f7 configurations. The energy necessary to make an interconfiguration excitation depends on the number of Ni neighbours of Eu, on x and on the temperature. Susceptibility measurements are consistent with the analysis of the Mössbauer experiments. The dependence of the magnetic hyperfine fields, the Curie temperatures and the isomer shifts on x, is discussed.
AB - The Mössbauer spectra of EuNixZn5-x and EuNixCu5-x compounds are composed of three subspectra: one corresponding to Eu2+, one to Eu3+ and one to Eu in a mixed valence state. The mixed valency is interpreted in terms of last fluctuations between 4f6 and 4f7 configurations. The energy necessary to make an interconfiguration excitation depends on the number of Ni neighbours of Eu, on x and on the temperature. Susceptibility measurements are consistent with the analysis of the Mössbauer experiments. The dependence of the magnetic hyperfine fields, the Curie temperatures and the isomer shifts on x, is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0009172553&partnerID=8YFLogxK
U2 - 10.1016/0304-8853(78)90211-1
DO - 10.1016/0304-8853(78)90211-1
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AN - SCOPUS:0009172553
SN - 0304-8853
VL - 7
SP - 317
EP - 325
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 1-4
ER -