Solid-state 119Sn NMR and Mössbauer spectroscopic studies of the intermediate-valent stannide CeRuSn
RAJARAJAN, Anakot K.
Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS]
Solid State Division
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Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS]
Solid State Division
RAJARAJAN, Anakot K.
Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS]
Solid State Division
Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS]
Solid State Division
MYDOSH, John A.
Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS]
Kamerlingh Onnes Laboratory
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Max-Planck-Institut für Chemische Physik fester Stoffe [CPfS]
Kamerlingh Onnes Laboratory
Language
en
Article de revue
This item was published in
Zeitschrift fur Naturforschung B. 2012, vol. 65, n° 5, p. 473-478
Verlag der Zeitschrift Fuer Naturforschung
English Abstract
The ternary stannide CeRuSn is a static mixed-valent cerium compound with an or-dering of trivalent and intermediate-valent cerium on two distinct crystallographic sites. 119Sn Mössbauer spectra showed two electronically ...Read more >
The ternary stannide CeRuSn is a static mixed-valent cerium compound with an or-dering of trivalent and intermediate-valent cerium on two distinct crystallographic sites. 119Sn Mössbauer spectra showed two electronically almost identical tin atoms at 323 K, while at 298 K and below (77 and 4.2 K) two tin sites can clearly be distinguished. 119Sn solid state NMR experiments are performed to probe the local hyperfine fields at the two different Sn sites. 119Sn NMR powder spectra are nicely fitted with two Sn sites with nearly the same magnetic anisotropy, but with different absolute shift values. Both Sn sites are strongly affected by crossover-like transitions between 100 and 280 K. This local-site study confirms the superstructure modulations found in previous investiga-tions. Towards lower temperatures the powder spectra are broadened giving strong evidence for the antiferromagnetically ordered ground state.Read less <
Origin
Hal imported