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Volumn 77, Issue 14, 2008, Pages

Pressure effects on the superconducting transition in nH-CaAlSi

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EID: 41549099143     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.77.144502     Document Type: Article
Times cited : (11)

References (40)
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    • In Fig. 2, to obtain the theoretical Tc, we used the Allen-Dynes formula with μ =0.072 in order to match the experimental Tc at P=0. The other parameters are listed in Table 1. In Fig. 2, the Tc vs P curve for polycrystalline samples is obtained from the raw susceptibility data of Ref., using the same criteria for determining Tc that we used for single crystals.
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    • For consistency, we used the theoretical lattice constants at all pressures. At P=0, the deviation between the theoretical and experimental lattice constants is less than 1%, which has no effect on the calculated phonon frequencies for all systems and on the electronic DOS for 1H and 6H. For 5H, by using the experimental lattice constant at P=0, we obtain a much lower value for N (EF) =1.1 st/eVf.u., which is in perfect agreement with other calculations (Ref.), and much closer to that of 1H and 6H.
    • For consistency, we used the theoretical lattice constants at all pressures. At P=0, the deviation between the theoretical and experimental lattice constants is less than 1%, which has no effect on the calculated phonon frequencies for all systems and on the electronic DOS for 1H and 6H. For 5H, by using the experimental lattice constant at P=0, we obtain a much lower value for N (EF) =1.1 st/eVf.u., which is in perfect agreement with other calculations (Ref.), and much closer to that of 1H and 6H.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.