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Ultrafast Carrier Dynamics in an Organic Superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br by Spectrally Resolved Pump-Probe Spectroscopy

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Abstract

In this work, spectrally resolved optical pump-probe measurements were carried out on strongly correlated organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br. We find two different types of carrier relaxation dynamics, one of which appears at 1.82 eV and 1.94 eV, and another at 2.17 eV. The former is characterized by short decay time \(\sim \) 1–2 ps and appears below \(\sim \) 60 K. From the comparison with the previous studies, the dynamics arises from the photo-induced pseudogap (PG) formation of the partially appeared Mott phase. The latter has long relaxation time \(\sim \) 9 ps at 5 K and developed as temperature decreases below 30 K. The slow dynamics is consistent with appearance of superconducting (SC) gap. Such separate observation of PG and SC dynamics enables us to proceed further investigation of a relationship between them.

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References

  1. Timusk, T., Statt, B.: Rep. Prog. Phys. 62, 61 (1999)

    Article  ADS  Google Scholar 

  2. Wang, Y., Li, L., Ong, N.P.: Phys. Rev. B 73, 024510 (2006)

    Article  ADS  Google Scholar 

  3. Bauer, E., Paul, C., Berger, S., Majumdar, S., Michor, H., Giovannini, M., Saccone, A., Bianconi, A.: J. Phys.: Condens. Matter 13, L487 (2001)

    ADS  Google Scholar 

  4. Yang, J.Y., Hu, M.: Phys. Chem. Chem. Phys. 20, 24222 (2018)

    Article  Google Scholar 

  5. Jarlborg, T., Bianconi, A.: Sci. Rep. 6, 24816 (2016)

    Article  ADS  Google Scholar 

  6. Li, M., Lee-Hone, N.R., Chi, S., Liang, R., Hardy, W.N., Bonn, D.A., Girt, E., Brounet, D.M.: New J. Phys. 18, 082001 (2016)

    Article  ADS  Google Scholar 

  7. Mori, H.: J. Phys. Soc. Jpn. 75, 051003 (2006)

    Article  ADS  Google Scholar 

  8. Guterding, D., Diehl, S., Altmeyer, M., Methfessel, T, Tutsch, U., Schubert, H., Lang, M., Muller, J., Huth, M., Jeschke, H.O., Valenti, R., Jourdan, M., Elmers, H.-J.: Phys. Rev. Lett. 116, 237001 (2016)

    Article  ADS  Google Scholar 

  9. Efimov, V.B., Makova, A.M., Mezhov-Deglin, L.P.: Low Temp. Phys. 21, 907 (1995)

    ADS  Google Scholar 

  10. Toda, Y., Mertelj, T., Naito, T., Mihailovic, D.: Phys. Rev. Lett. 107, 227002 (2011)

    Article  ADS  Google Scholar 

  11. Tsuchiya, S., Nakagawa, K., Yamada, J., Taniguchi, H., Toda, Y.: Phys. Rev. B 96, 134311 (2017)

    Article  ADS  Google Scholar 

  12. Nakagawa, K., Tsuchiya, S., Yamada, J., Toda, Y.: Europhys. Lett. 122, 67003 (2018)

    Article  ADS  Google Scholar 

  13. Giannetti, C., Cilento, F., Conte, S.D., Coslovich, G., Ferrini, G., Molegraaf, H., Raichle, M., Liang, R., Eisaki, H., Greven, M., Damascelli, A., van der marel, D., Parmigiani, F.: Nat. Commun. 2, 353 (2011)

    Article  ADS  Google Scholar 

  14. Coslovich, G., Giannetti, C., Cilento, F., Conte, S.D., Abebaw, T., Bossini, D., Ferrini, G., Eisaki, H., Greven, M., Damascelli, A., Parmigiani, F.: Phys. Rev. Lett. 110, 107003 (2013)

    Article  ADS  Google Scholar 

  15. Anzai, H., Delrieu, J.M., Takasaki, S., Nakajima, S., Yamada, J.: J. Cryst. Growth 154, 145 (1995)

    Article  ADS  Google Scholar 

  16. Kini, A.M., Geiser, U., Wang, H.H., Carlson, K.D., Williams, J.M., Kwok, W.K., Vandervoort, K.G., Thompson, J.E., Stupka, D.L., Jung, D., Whangbo, M.: Inorg. Chem. 29, 2555 (1990)

    Article  Google Scholar 

  17. Ito, H., Ishiguro, T., Kubota, M., Saito, G.: J. Phys. Soc. Jpn. 65, 2987 (1996)

    Article  ADS  Google Scholar 

  18. Mckenzie, R.H.: Science 278, 820 (1997)

    Article  ADS  Google Scholar 

  19. Lefebvre, S., Wzietek, P., Brown, S., Bourbonnais, C., Jerome, D., Meziere, C., Fourmigue, M., Batail, P.: Phys. Rev. Lett. 85, 5420 (2000)

    Article  ADS  Google Scholar 

  20. Powell, B.J., McKenzie, R.H.: J. Phys.: Condens. Matter 18, R827 (2006)

    ADS  Google Scholar 

  21. Mertelj, T., Vujicic, N., Borzda, T., Vaskivskyi, I., Pogrebna, A., Mihailovic, D.: Rev. Sci. Instrum. 85, 123111 (2014)

    Article  ADS  Google Scholar 

  22. Toda, Y, Kawanokami, F, Kurosawa, T, Oda, M, Madan, I, Mertelj, T, Kabanov, VV, Mihailovic, D: . Phys. Rev. B 90, 094513 (2014)

    Article  ADS  Google Scholar 

  23. Nam, M.-S., Ardavan, A., Blundell, S.J., Schlueter, J.A.: Nature 449, 584 (2007)

    Article  ADS  Google Scholar 

  24. Uehara, T., Ito, M., Taniguchi, H., Satoh, K.: J. Phys. Soc. Jpn. 82, 073706 (2013)

    Article  ADS  Google Scholar 

  25. Tsuchiya, S., Yamada, J., Terashima, T., Kurita, N., Kodama, K., Sugii, K., Uji, S.: J. Phys. Soc. Jpn. 82, 064711 (2013)

    Article  ADS  Google Scholar 

  26. Kobayashi, T., Ihara, Y., Saito, Y., Kawamoto, A.: Phys. Rev. B 89, 165141 (2014)

    Article  ADS  Google Scholar 

  27. Toda, Y., Mertelj, T., Kusar, P, Kurosawa, T., Oda, M., Ido, M., Mihailovic, D.: Phys. C 493, 112 (2013)

    Article  ADS  Google Scholar 

  28. Sugano, T., Hayashi, H., Kinoshita, M., Nishikida, K.: Phys. Rev. B 39, 11387 (1989)

    Article  ADS  Google Scholar 

  29. Vlasova, R.M., Drozdova, O.O., Semkin, V.N., Kushch, N.D., Zhilyaeva, E.I., Lyubovskaya, R.N., Yagubskii, E.B.: Phys. Solid State 41, 814 (1999)

    Article  ADS  Google Scholar 

  30. McGuire, J.J., Room, T., Pronin, A., Timusk, T., Schlueter, J.A., Kelly, M.E., Kini, A.M.: Phys. Rev. B 64, 094503 (2001)

    Article  ADS  Google Scholar 

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Funding

One of the authors (S. T.) would like to thank Faculty of Engineering, Hokkaido University, for a partial financial support.

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Authors and Affiliations

  1. Department of Applied Physics, Hokkaido University, Hokkaido, 060-8628, Japan

    Satoshi Tsuchiya & Yasunori Toda

  2. Complex Matter Department, Jozef Stefan Institute, Jamova 39, Ljubljana, SI-1000, Ljubljana, Slovenia

    Tomaz Mertelj & Dragan Mihailovic

  3. Graduate School of Material Science, University of Hyogo, Hyogo, 650-004, Japan

    Jun-ichi Yamada

Authors
  1. Satoshi Tsuchiya
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  2. Tomaz Mertelj
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  3. Dragan Mihailovic
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  4. Jun-ichi Yamada
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  5. Yasunori Toda
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Correspondence to Satoshi Tsuchiya.

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Tsuchiya, S., Mertelj, T., Mihailovic, D. et al. Ultrafast Carrier Dynamics in an Organic Superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br by Spectrally Resolved Pump-Probe Spectroscopy. J Supercond Nov Magn 33, 2299–2303 (2020). https://doi.org/10.1007/s10948-019-05382-4

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  • DOI: https://doi.org/10.1007/s10948-019-05382-4

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