| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Universality of a Critical Magnetic Field in a Holographic Superconductor |
| D. Momeni**, R. Myrzakulov |
| Eurasian International Center for Theoretical Physics and Department of General and Theoretical Physics, Eurasian National University, Astana 010008, Kazakhstan |
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| Cite this article: |
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D. Momeni, R. Myrzakulov 2015 Chin. Phys. Lett. 32 047401 |
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Abstract We study aspects of holographic superconductors analytically in the presence of a constant external magnetic field. It is shown that the critical temperature and the critical magnetic field can be calculated at nonzero temperature. We detect the Meissner effect in such superconductors. A universal relation between black hole mass M and critical magnetic field Hc is proposed to be Hc/M2/3≤0.687365. We also discuss some aspects of phase transition in terms of black hole entropy and Bekenstein's entropy to the energy upper bound.
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Received: 11 October 2014
Published: 30 April 2015
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| PACS: |
74.62.Bf
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(Effects of material synthesis, crystal structure, and chemical composition)
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74.25.Ha
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(Magnetic properties including vortex structures and related phenomena)
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11.25.Tq
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(Gauge/string duality)
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44.05.+e
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(Analytical and numerical techniques)
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