ISSN:
1573-7357
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The electronic structure of tetragonal (RC(N))m(TB)2, m=1−3, compounds, with R= Y,Lu,La, T=Ni,Pt is studied. Total and partial densities of states N(E) are calculated and compared with orbital resolved x-ray absorption data. Special attention is paid to the structure of N(E) near the Fermi-level and its consequences for thermodynamic properties in the superconducting and the normal states. A medium el-ph coupling constant 0.5≤λ≤ 1.2 is found. There is no simple correlation between N(0) and T c . The analysis of the upper critical field reveals the presence of at least two groups of electrons with quite different Fermi velocities v F in accord with dHvA data, and with calculated distributions of v F around the Fermi surface
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1022563716127
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