6533b831fe1ef96bd1298325

RESEARCH PRODUCT

Debye-Waller factor in the spin crossover complex Fe(ppi)2(NCS)2

Yuanfu HsiaChunlei LiZhihao YuXiao-zeng YouP. GütlichH. Spiering

subject

Condensed matter physicsMössbauer effectChemistryAnalytical chemistrySpin transitionAtmospheric temperature rangeCondensed Matter PhysicsMagnetic susceptibilitysymbols.namesakeSpin crossoversymbolsGeneral Materials ScienceDebye–Waller factorSpin (physics)Debye model

description

Abstract Mossbauer spectroscopy and magnetic susceptibility measurements for the complex Fe(ppi) 2 (NCS) 2 in the temperature range 11–300 K indicate that the spin transition of this compound is incomplete until 11 K. The similar Debye-Waller factors in high spin (HS) and low spin (LS) states is shown by the comparison of the HS fractions from the two different methods. The Debye temperature of the compound was calculated from the defined Debye-Waller factors obtained from Mossbauer measurement at each experimental temperature and was found to depend on the temperature as well as on the HS fraction. The modification of the Debye-Waller factors in the HS and LS states for the HS fraction from Mossbauer measurements should be considered to result from the temperature dependence of the Debye temperature.

https://doi.org/10.1016/s0254-0584(97)80110-1