Skip to main content
SpringerLink
Log in

Even- and Odd-Frequency Superconductivity in Q1D Organic Superconductors Under Magnetic Field

  • Published:
Journal of Low Temperature Physics Aims and scope Submit manuscript

Abstract

One of the quasi-one-dimensional organic superconductors \((\hbox {TMTSF})_2X\), called Bechgaard salts, has attracted a lot of interest since its discovery in 1980. These compounds have high critical magnetic field \(H_{\mathrm {c}2}\) in the direction parallel to the layers, and their pairing symmetries seem to be different between low-field phase and high-field phase. In addition, recently, the possibility of the realization of odd-frequency superconductivity was pointed out. Therefore, we study pairing symmetries of Bechgaard salts under magnetic field with frequency-dependent pairing interaction due to spin and charge fluctuation. The model is given by the extended Hubbard model on a quasi-one-dimensional square lattice, and the spin susceptibility and charge susceptibility for the effective pairing interactions are derived by random-phase approximation under magnetic field. The odd-frequency s-wave and even-frequency f-wave regions expand as the magnetic field is increased.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

  1. C. Bourbonnais, D. Jérome, in Advances in synthetic metals, twenty years of progress in science and technology, ed. by P. Bernier, S. Lefrant, G. Bidan (Elsevier, Lausanne, 1999), pp. 206–261. (chap. 3)

    Google Scholar 

  2. D. Jérome, A. Mazaud, M. Ribault, K. Bechgaard, J. Phys. Lett. 41(4), 95 (1980)

    Article  Google Scholar 

  3. I.J. Lee, S.E. Brown, W.G. Clark, M.J. Strouse, M.J. Naughton, W. Kang, P.M. Chaikin, Phys. Rev. Lett. 88(1), 017004 (2001)

    Article  ADS  Google Scholar 

  4. J. Shinagawa, Y. Kurosaki, F. Zhang, C. Parker, S.E. Brown, D. Jérome, J.B. Christensen, K. Bechgaard, Phys. Rev. Lett. 98(14), 147002 (2007)

    Article  ADS  Google Scholar 

  5. F.L. Pratt, T. Lancaster, S.J. Blundell, C. Baines, Phys. Rev. Lett. 110(10), 107005 (2013)

    Article  ADS  Google Scholar 

  6. V.L. Berezinskii, JETP Lett. 20(9), 287 (1974)

    ADS  Google Scholar 

  7. K. Shigeta, S. Onari, Y. Tanaka, J. Phys. Soc. Jpn. 82(10), 104702 (2013)

    Article  ADS  Google Scholar 

  8. H. Aizawa, K. Kuroki, T. Yokoyama, Y. Tanaka, Phys. Rev. Lett. 102(1), 016403 (2009)

    Article  ADS  Google Scholar 

  9. M. Matsumoto, M. Koga, H. Kusunose, J. Phys. Soc. Jpn. 81(3), 033702 (2012)

    Article  ADS  Google Scholar 

  10. K. Fukui, Y. Kato, J. Phys. Soc. Jpn. 87(1), 014706 (2018)

    Article  ADS  Google Scholar 

  11. H. Aizawa, K. Kuroki, Phys. Rev. B 97(10), 104507 (2018)

    Article  ADS  Google Scholar 

Download references

Acknowledgements

Kiyu Fukui was also supported by the JSPS through the Program for Leading Graduate Schools (MERIT).

Author information

Authors and Affiliations

  1. Department of Physics, The University of Tokyo, Bunkyo, Tokyo, 113-0033, Japan

    Kiyu Fukui

  2. Department of Basic Science, The University of Tokyo, Meguro, Tokyo, 153-8902, Japan

    Yusuke Kato

Authors
  1. Kiyu Fukui
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yusuke Kato
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Kiyu Fukui.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Fukui, K., Kato, Y. Even- and Odd-Frequency Superconductivity in Q1D Organic Superconductors Under Magnetic Field. J Low Temp Phys 196, 234–241 (2019). https://doi.org/10.1007/s10909-018-02142-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10909-018-02142-x

Keywords

Search

Navigation