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Enhanced Superconductivity in Double-Doping Cu0.15TaSe2−x S x

Abstract

Superconducting Cu x TaSe2(x=0.05, 0.15) and Cu0.15TaSe2−x S x (x=0, 0.5, 1, 1.5) single crystals have been systematically fabricated by a chemical vapor transport method. It is found that the double doping in TaSe2, i.e., the simultaneous intercalation of Cu and substitution of Se by S, can substantially enhance the superconducting transition temperature. Transport property measurements give evidence of the coexistence and competition of charge density wave state and superconductivity in Cu x TaSe2 which provide meaningful information to understand the complex electronic states in this system. The parallel shift and the fan-shape broadening behaviors are observed in the superconducting transition curves under magnetic fields of Cu0.15TaSeS and TaSeS, respectively, indicating an increase of coherence length and suppression of superconducting fluctuation induced by copper intercalation.

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References

  1. Arguello, C.J., Chockalingam, S.P., Rosenthal, E.P., Zhao, L., Gutiérrez, C., Kang, J.H., Chung, W.C., Fernandes, R.M., Jia, S., Millis, A.J., Cava, R.J., Pasupathy, A.N.: Phys. Rev. B 89, 235115 (2014)

    ADS  Article  Google Scholar 

  2. Soumyanarayanan, A., Yee, M.M., He, Y., van Wezel, J., Rahne, D.J., Rossnagel, K., Hudson, E.W., Norman, M.R., Hoffmana, J.E.: Proc Natl Acad Sci USA 110(5), 1623–1627 (2013)

    ADS  Article  Google Scholar 

  3. Malliakas, C.D., Kanatzidis, M.G.: J. Am. Chem. Soc. 135(5), 1719–1722 (2013)

    Article  Google Scholar 

  4. Grüner, G.: Rev. Mod. Phys. 60, 1129 (1988)

    ADS  Article  Google Scholar 

  5. Sipos, B., Kusmartseva, A.F., Akrap, A., Berger, H., Forró, L., Tutis Caron, E.: Nat. Mater. 7, 960–965 (2008)

    ADS  Article  Google Scholar 

  6. Luo, H., Xie, W., Tao, J., Inoue, H., Gyenis, A., Krizan, J.W., Yazdani, A., Zhu, Y., Cava, R.J.: Proc. Natl. Acad. Sci. 112(11), E1174–E1180 (2015)

    ADS  Article  Google Scholar 

  7. Liu, Y., Ang, R., Lu, W.J., Song, W.H., Li, L.J., Sun, Y.P.: Appl. Phys. Lett. 102, 192602 (2013)

    ADS  Article  Google Scholar 

  8. Ang, R., Miyata, Y., Ieki, E., Nakayama, K., Sato, T., Liu, Y., Lu, W.J., Sun, Y.P., Takahashi, T.: Phys. Rev. B 88, 115145 (2013)

    ADS  Article  Google Scholar 

  9. Ang, R., Wang, Z.C., Chen, C.L., Tang, J., Liu, N., Liu4, Y., Lu, W.J., Sun, Y.P., Mori, T., Ikuhara, Y.: Nat. Commun. 6, 6091 (2015). doi:10.1038/ncomms7091

  10. Whittingham, M.S.: Prog. Solid State Chem. 12, 41 (1978)

    Article  Google Scholar 

  11. Trichet, L., Rouxel, J., Pouchard, M.M.: J.Solid State Chem. 283, 14 (1975)

    Google Scholar 

  12. Hor, Y.S., Williams, A.J., Checkelsky, J.G., Roushan, P., Seo, J., Xu, Q., Zandbergen, H.W., Yazdani, A., Ong, N.P., Cava, R.J.: PRL 104, 057001 (2010)

    ADS  Article  Google Scholar 

  13. Wagner, K.E., Morosan, E., Hor, Y.S., Tao, J., Zhu, Y., Sanders, T., McQueen, T.M., Zandbergen, H.W., Williams, A.J., West, D.V., Cava1, R.J.: Phys. Rev. B 78, 104520 (2008)

  14. Morosan, E., Zandbergen, H.W., Dennis, B.S., Bos, J.W.G., Onose, Y., Klimczuk, T., Ramirez, A.P., Ong, N.P., Cava, R.J.: Nat. Phys. 2, 544–550 (2006)

    Article  Google Scholar 

  15. Wu, G., Yang, H.X., Zhao, L., Luo, X.G., Wu, T., Wang, G.Y., Chen, X.H.: Phys. Rev. B 76, 024513 (2007)

    ADS  Article  Google Scholar 

  16. Liu, Y., Ang, R., Lu, W.J., Song, 1 W.H., Li, L.J., Sun, Y.P.: Appl. Phys. Lett. 102, 192602 (2013)

    ADS  Article  Google Scholar 

  17. Liu, Y., Lu, W.J., Li, L.J., Zhu, X.D., Song, W.H., Ang, R., Ling, L.S., Liu, X.Z., Sun, Y.P.: J. Appl. Phys. 117, 163912 (2015)

    ADS  Article  Google Scholar 

  18. Adachi, T., Kitajima, N., Manabe, T., Koike, Y.: Phys. Rev. B 71, 104516 (2005)

    ADS  Article  Google Scholar 

  19. Wakimoto, S., Birgeneau, R.J., Fujimaki, Y., Ichikawa, N., Kasuga, T., Kim, Y.J., Kojima, K.M., Lee, S.H., Niko, H., Tranquada, J.M., Uchida, S., Zimmermann, M.V.: Phys. Rev. B 67, 184419 (2003)

    ADS  Article  Google Scholar 

  20. Suzuki, T., Oshima, Y., Chiba, K., Fukase, T.: Phys. Rev. B 60, 10500 (1999)

    ADS  Article  Google Scholar 

  21. Suzuki, M., Hikita, M.: Phys. Rev. B 44, 249 (1991)

    ADS  Article  Google Scholar 

  22. Yokota, K., Kurata, G., Matsui, T., Fukuyama, H.: Phys. B 284–288:551–552

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant No. U1532267).

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Correspondence to Changjin Zhang.

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Yao, X., Liu, Z., Shao, J. et al. Enhanced Superconductivity in Double-Doping Cu0.15TaSe2−x S x . J Supercond Nov Magn 29, 2281–2285 (2016). https://doi.org/10.1007/s10948-016-3597-9

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  • DOI: https://doi.org/10.1007/s10948-016-3597-9

Keywords

  • Transition-metal dichalcogenides
  • Double-doping
  • Enhanced superconductivity