Michael Reissner, Hrg. Walter Steiner, Herbert Boller,
"57Fe Mössbauer investigation of K0.3Ba0.7Fe2S3"
, in Journal of Alloys and Compounds, Vol. 383, Elsevier B. V., Seite(n) 131-134, 2004, ISSN: 0925-8388
Original Titel:
57Fe Mössbauer investigation of K0.3Ba0.7Fe2S3
Sprache des Titels:
Englisch
Original Kurzfassung:
57Fe Mössbauer investigations are reported for K0.3Ba0.7Fe2S3 and compared with the unsubstituted compound BaFe2S3 in the temperature interval 4.2 < T < 293K. According to the temperature dependence of the quadrupole splitting and the value of the centre shift (CS) both samples can be characterised as mixed valence compounds. A weakening in stiffness of the Fe sublattice follows from the decrease in Debye temperature (30K), if Ba is substituted by K. The ordering temperature, determined from the appearance of a magnetic hyperfine split component, is roughly 40K lower than the one for BaFe2S3 indicating a strong influence of the interspersed cations on the magnetic exchange interaction.
Sprache der Kurzfassung:
Englisch
Journal:
Journal of Alloys and Compounds
Veröffentlicher:
Elsevier B. V.
Volume:
383
Seitenreferenz:
131-134
Erscheinungsjahr:
2004
ISSN:
0925-8388
Anzahl der Seiten:
4
Notiz zur Publikation:
M. Reissner, W. Steiner*, H. Boller; 57Fe Mössbauer investigation of K0.3Ba0.7Fe2S3; J. Alloys Compds. 383 (2004) 131-134