| Autor: |
M.A. Mindlina, V.V. Nemoshkalenko, A. D. Shevchenko, I.E. Bulakh, V.Ja. Nagorniy, M.M. Kogut |
| Rok vydání: |
1982 |
| Předmět: |
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| Zdroj: |
Solid State Communications. 44:167-172 |
| ISSN: |
0038-1098 |
| DOI: |
10.1016/0038-1098(82)90423-9 |
| Popis: |
Structurally unstable superconducting Laves phases Zr x Hf 1− x V 2 were investigated in the temperature range 4.2 – 300 K for temperature dependence of magnetic susceptibilities χ, resistivity ρ, and X-ray fluorescent emission 2K-spectra of vanadium. Anomalous dependences χ and ρ as compared to common metals was discovered below 150 K. This may be explained in terms of a phase transition of Peierl's type when the lattice instability results from the instability of the electron spectrum due to the dielectric slit that appears on flat parts of the Fermi surface. The presence of regions with localised electron density in the Laves phases on the low-energy side of the vanadium emission spectrum at low temperatures ( T =10K) indicates an essential rebuilding in the electron spectrum of valence electrons. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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