The Study on Zero-Temperature Gap of Superconductor Having the Coexistence of SDW and CDW

Kanphot Thongcham; Pongkaew Udomsamuthirun

doi:10.4028/www.scientific.net/AMR.979.212

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 979The Study on Zero-Temperature Gap of...

The Study on Zero-Temperature Gap of Superconductor Having the Coexistence of SDW and CDW

Abstract:

In the field of superconductivity the most interesting area is the studying of the mechanism of the high T_c superconductor (HTS). Understanding of this mechanism, we can raise the critical temperature (T_c). There are many proposals theoretical descriptions for HTS. We focus on the spin density wave (SDW) and charge density wave (CDW), the static wave of spin density and charge density arising from the nesting property of Fermi surface that were observed in the superconductor. The model Hamiltonian of superconductor having SDW and CDW coexistence was studied by Greens function method. The analytic expression of zero-temperature gap of superconductor with the coexistence of the SDW and CDW were derived. By varying the effective potential, the phase diagram of the SDW and CDW was constructed then the band structure and density of states (DOS) of coexistent phase were also studied.

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Periodical:

Advanced Materials Research (Volume 979)

Pages:

212-215

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.979.212

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Online since:

June 2014

Authors:

Kanphot Thongcham*, Pongkaew Udomsamuthirun

Keywords:

Charge Density Wave (CDW), High T_c Superconductor (HTS), Spin Density Wave (SDW)

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References

[1] J.G. Bednorz, K.A. Muller, Possible High Tc Superconductivity in Ba-La-Cu-O system, Z. Phys. B-Condensed Matter. 64 (1986) 189-193.

DOI: 10.1007/bf01303701

Google Scholar

[2] A.M. Gabovich, A.I. Voitenko, M. Ausloos, Charge- and spin-density waves in existing superconductors: competition between Cooper pairing and Peierls or excitonic instabilities, Physics Reports 367 (2002) 583-709.

DOI: 10.1016/s0370-1573(02)00029-7

Google Scholar

[3] J.P. Pouget, S. Ravy, X-Ray evidence of charge density wave modulations in the magnetic phase of (TMTSF)2PF6 and (TMTTF)2Br, Synthetic Metals 85 (1997) 1523-1528.

DOI: 10.1016/s0379-6779(97)80332-3

Google Scholar

[4] A. Huxley, I. Sheikin, E. Ressouche, N. Kernavanois, D. Braithwaite, R. Calemczuk, UGe2: A ferromagnetic spin-triplet superconductor, Phys. Rev. B 63 (2001) 144519.

DOI: 10.1103/physrevb.63.144519

Google Scholar

[5] M. Fujita, M. Enoki, K. Yamada, Spin- and charge-density-wave orders in La1. 87Sr0. 13Cu0. 99Fe0. 01O4, J. Phys. Chem. Sol. 69 (2008) 3167-3170.

DOI: 10.1016/j.jpcs.2008.06.049

Google Scholar

[6] B. Pradhan, B.K. Raj, G.C. Rout, Interplay of charge density wave and spin density wave in high-Tc superconductors, Physica C 468 (2008) 2332–2335.

DOI: 10.1016/j.physc.2008.08.010

Google Scholar