Hole-doped, high-temperature superconductors LixBC, NaxBC and Cx: a coherent-potential-based prediction
DSpace at IIT Bombay
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Title |
Hole-doped, high-temperature superconductors LixBC, NaxBC and Cx: a coherent-potential-based prediction
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Creator |
SINGH, PRABHAKAR P
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Subject |
superconducting transition
boron compounds band structure hole density |
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Description |
Using density-functional-based methods, we show that the hole-doped LixBC and NaxBC in P63/mmc crystal structure and Cx in graphite structure are capable of showing superconductivity, possibly with a Tc much higher than that of MgB2. We use the pseudopotential method to obtain the optimized lattice constants a and c, the coherent-potential approximation to describe the effects of disorder, the Gaspari–Gyorffy formalism to obtain the electron–phonon coupling constant λ, and the Allen–Dynes equation to calculate Tc as a function of hole concentration in these alloys.
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Publisher |
Elsevier
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Date |
2009-04-03T09:02:06Z
2011-11-25T20:27:29Z 2011-12-26T13:08:04Z 2011-12-27T05:56:05Z 2009-04-03T09:02:06Z 2011-11-25T20:27:29Z 2011-12-26T13:08:04Z 2011-12-27T05:56:05Z 2002 |
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Type |
Article
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Identifier |
Solid State Communications 124(1-2), 25-28
0038-1098 http://dx.doi.org/10.1016/S0038-1098(02)00454-4 http://hdl.handle.net/10054/1102 http://dspace.library.iitb.ac.in/xmlui/handle/10054/1102 |
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Language |
en
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