MOSSBAUER SPECTROSCOPIC STUDY OF THE REENTRANT PHASE-TRANSITIONS IN TBA[FE(TDAS)(2)]

Authors
TAKAHASHI M TAKEDA M AWAGA K OKUNO T MARUYAMA Y KOBAYASHI A KOBAYASHI H SCHENK S ROBERTSON N UNDERHILL AE
Citation
M. Takahashi et al., MOSSBAUER SPECTROSCOPIC STUDY OF THE REENTRANT PHASE-TRANSITIONS IN TBA[FE(TDAS)(2)], Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 285, 1996, pp. 399-404
Citations number
6
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
285
Year of publication
1996
Pages
399 - 404
Database
ISI
SICI code
1058-725X(1996)285:<399:MSSOTR>2.0.ZU;2-4
Abstract
Temperature dependence of Fe-57 Mossbauer spectra for TBA[Fe(tdas)(2)] is measured to obtain the information on the spin state and the phase transitions. The large quadrupole splitting due to the S = 3/2 spin s tate increases reenteringly in the intermediate temperature region (19 0 - 230 K on cooling and 200 - 240 K on heating). The small increase i n the quadrupole splitting and the continuous decrease in the isomer s hift suggests the 3/2 spin state does not change, supporting the inter pretation of the magnetic susceptibility.