Ru_3Sn_7: Phonon Reference for Superconducting Mo_3Sb_7

• Authors: V. Tran , W. Miiller
• Languages of publication: EN

Abstracts

EN

In order to search for phonon reference for dimer-gapped superconducting Mo_3Sb_7, measurements of specific heat (C_p(T)) and electrical resistivity (ρ(T)) of Ru_3Sn_7 were performed in the temperature range 2-300 K. The phonon part of C_p(T) and ρ(T) of Ru_3Sn_7 can satisfactorily be explained describing the spectrum with one Einstein and two Debye modes. We found Θp_{E} ≈ 100 K, Θp_{D1} ≈ 185 K and Θp_{D2} ≈298 K. The magnetic specific heat of Mo_3Sb_7 exhibits a sharp maximum at T*= 50 K, below which follows a gap function. Magnetic resistivity increases as -lnT with decreasing temperature and shows maximum at T*.

Keywords

EN

65.40.-b; 72.15.Eb; 74.25.Kc; 74.25.Bt; 72.15.Qm

Discipline

• 72.15.Qm: Scattering mechanisms and Kondo effect(see also 75.20.Hr Local moments in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions in magnetic properties and materials)
• 65.40.-b: Thermal properties of crystalline solids
• 74.25.Kc: Phonons
• 72.15.Eb: Electrical and thermal conduction in crystalline metals and alloys
• 74.25.Bt: Thermodynamic properties

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 83-85

Dates

published

2009-01

Contributors

author

V. Tran

• W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

author

W. Miiller

• W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.115.83