This title appears in the Scientific Report :
2003
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.90.135505 in citations.
Please use the identifier: http://hdl.handle.net/2128/1316 in citations.
Einstein oscillators in thallium filled antimony skutterudites
Einstein oscillators in thallium filled antimony skutterudites
Inelastic neutron scattering measurements on several Tl filled skutterudites (Tl0.5Co3.5Fe0.5Sb12, Tl0.8Co3FeSb12, and Tl0.8Co4Sb11Sn) all show a sharp peak in the vibrational density of states at 57 +/- 2 K, which is absent in the unfilled skutterudite CoSb3. Heat capacity measurements on Tl0.8Co4S...
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Personal Name(s): | Hermann, R. P. |
---|---|
Jin, R. / Schweika, W. / Grandjean, W. B. / Mandrus, D. / Sales, B. C. / Long, St. P. | |
Contributing Institute: |
Streumethoden; IFF-STM |
Published in: | Physical review letters, 90 (2003) S. 135505-1 - 135505-4 |
Imprint: |
College Park, Md.
APS
2003
|
Physical Description: |
135505-1 - 135505-4 |
DOI: |
10.1103/PhysRevLett.90.135505 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Physical Review Letters
90 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1316 in citations.
Inelastic neutron scattering measurements on several Tl filled skutterudites (Tl0.5Co3.5Fe0.5Sb12, Tl0.8Co3FeSb12, and Tl0.8Co4Sb11Sn) all show a sharp peak in the vibrational density of states at 57 +/- 2 K, which is absent in the unfilled skutterudite CoSb3. Heat capacity measurements on Tl0.8Co4Sb11Sn as compared to CoSb3 are consistent with the presence of a localized vibrational mode associated with the "rattling" thallium atoms in this filled skutterudite compound. Both results are well described by a localized Einstein mode model with an Einstein temperature Theta(E) of 53 +/- 1 K. These data provide perhaps the clearest example of local mode behavior in a concentrated metallic system. |