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Specific heat capacity of molybdenum chalcogenides. IV. An investigation of the heat capacity of binary and halogen-substituted molybdenum chalcogenides

โœ Scribed by N. E. Alekseevskii; G. Wolf; N. M. Dobrovolskii; C. Hohlfeld

Publisher
Springer US
Year
1980
Tongue
English
Weight
440 KB
Volume
38-38
Category
Article
ISSN
0022-2291

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โœฆ Synopsis

Results of heat capacity measurements of Mo6Xs and Mo6X6Y2 compounds (X = S, Se, and Te; Y = Br and I) in the temperature range from 2 to 30 K and in a magnetic field of 50 kG are reported and discussed. The analysis of the C results is done on the basis of a lattice term composed of two Debye functions and one fiT 3 term. The characteristic frequencies for the phonon spectrum show systematic changes dependent on the structural parameters and the composition of the samples. The results obtained could be supplemented by means of Raman spectra. The determined 3" coefficients exhibit an apparent correlation to To. The results are discussed with consideration of the superconducting properties of the studied compounds.

๐Ÿ“œ SIMILAR VOLUMES

Specific heat capacity of molybdenum cha
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โœ N. E. Alekseevskii; G. Wolf; C. Hohlfeld; N. M. Dobrovolskii ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› Springer US ๐ŸŒ English โš– 506 KB

Results of measurements of the heat capacity of the ternary molybdenum chalcogenides PbMo6Ss, and PbMo6Ses and of samples with small Fe content PbFexMo6Ss (x = O. 05; O. 1) are presented and discussed. A strong decrease of Tc and increase of the y coefficient without any change of lattice contributi

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Specific heat capacity of molybdenum chalcogenides. III. Measurements of the heat capacity of Sn1 โˆ’xGaxMo5S6. An investigation of the singularities at low temperatures
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The heat capacity of molybdenum chalcogenides with different Sn/ Ga content was measured at temperatures of T <-60 K. The occurrence of two phases of the chalcogenides studied could clearly be seen for higher Ga concentrations. In the miscibility gap there coexists a superconducting phase (Tr = 12.5