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Pressure effects on the superconducting transition in nH-CaAlSi
L. Boeri, J. S. Kim, M. Giantomassi +4
We present a combined experimental and theoretical study of the effects of pressure on T_c of the hexagonal layered superconductors nH-CaAlSi (n = 1, 5, 6), where nH labels the dif…
Electron-phonon interaction in Graphite Intercalation Compounds
Lilia Boeri, Giovanni B. Bachelet, Matteo Giantomassi +1
Motivated by the recent discovery of superconductivity in Ca- and Yb-intercalated graphite (CaC and YbC) and from the ongoing debate on the nature and role of the inter…
Unresolved problems in superconductivity of CaC6
I. I. Mazin, L. Boeri, O. V. Dolgov +4
We discuss the current status of the theory of the "high-temperature" superconductivity in intercalated graphites YbC6 and CaC6. We emphasize that while the general picture of conv…
Electrons and phonons in the ternary alloy CaAlSi} as a function of composition
Matteo Giantomassi, Lilia Boeri, Giovanni B. Bachelet
We report a detailed first-principles study of the structural, electronic and vibrational properties of the superconducting C phase of the ternary alloy CaAlSi,…