Skip to main content Accessibility help
×
Home

Field-induced superconductivity in MoS2

  • Y. J. Zhang (a1), J. T. Ye (a1) and Y. Iwasa (a1) (a2)

Abstract

We fabricated MoS2 transistor adopting electric double layer (EDL) as gate dielectric. So far, EDL has realized p-type conducting MoS2 in addition to well-known n-type conduction showing ambipolar operation. In our study, field-effect superconducting transition of MoS2 was realized with maximum T C around 10 K. This T C is the highest not only within MoS2 compounds but also among whole TMDs. The highest T C discovered in this study lies in the carrier density region much smaller than chemically investigated region. Such compounds with small doping level have never been successfully synthesized by chemical method. Furthermore, by combining HfO2 (typical high-k material for FETs) gating with EDL gating, continuous control of carrier density, and thus quantum phase, was demonstrated. As a result, we successfully obtained the phase diagram of MoS2. Interestingly, the T C exhibits strong carrier density dependence, showing dome-shaped superconducting phase. Superconducting dome in other materials than cuprates has been reported only a few times in doped 2D semiconductors. Since FET charge accumulation is basically two dimensional, our result implies the existence of common mechanism for superconducting dome in 2D band insulators.

Copyright

References

Hide All
[1] Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Zhang, Y., Dubonos, S. V., Grigorieva, I. V., and Firsov, A. A., Science 306, 666 (2004).
[2] Novoselov, K. S., Jiang, D., Schedin, F., Booth, T. J., Khotkevich, V. V., Morozov, S. V., and Geim, A. K., PNAS 102, 10451 (2005).
[3] Geim, A. K. and Novoselov, K. S., Nature Materials 6, 183 (2007).
[4] Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., and Strano, M. S., Nat. Nanotechnol. 7, 699 (2012).
[5] Allender, D., Bray, J., and Bardeen, J., Phys. Rev. B 7, 1020 (1973).
[6] Takada, Y., J. Phys. Soc. Jpn. 45, 786 (1978).
[7] Brazovskii, S., Kirova, N., and Yakovenko, V., Solid State Communications 55, 187 (1985).
[8] Glover‚, R. E. III and Sherrill, M. D., Phys. Rev. Lett. 5, 248 (1960).
[9] Ahn, C. H., Triscone, J. M., and Mannhart, J., Nature 424, 1015 (2003).
[10] Ahn, C. H., Bhattacharya, A., Di Ventra, M., Eckstein, J. N., Frisbie, C. D., Gershenson, M. E., Goldman, A. M., Inoue, I. H., Mannhart, J., Millis, A. J., Morpurgo, A. F., Natelson, D., and Triscone, J.-M., Rev. Mod. Phys. 78, 1185 (2006).
[11] Ueno, K., Nakamura, S., Shimotani, H., Ohtomo, A., Kimura, N., Nojima, T., Aoki, H., Iwasa, Y., and Kawasaki, M., Nat. Mater. 7, 855 (2008).
[12] Caviglia, A. D., Gariglio, S., Reyren, N., Jaccard, D., Schneider, T., Gabay, M., Thiel, S., Hammerl, G., Mannhart, J., and Triscone, J.-M., Nature 456, 624 (2008).
[13] Ye, J. T., Inoue, S., Kobayashi, K., Kasahara, Y., Yuan, H. T., Shimotani, H., and Iwasa, Y., Nature Materials 9, 125 (2010).
[14] Ye, J. T., Zhang, Y. J., Akashi, R., Bahramy, M. S., Arita, R., and Iwasa, Y., Science 338, 1193 (2012).
[15] Ye, J. T., Inoue, S., Kobayashi, K., Kasahara, Y., Yuan, H. T., Shimotani, H., and Iwasa, Y., Physica C-Superconductivity and Its Applications 470, S682 (2010).
[16] Ye, J., Craciun, M. F., Koshino, M., Russo, S., Inoue, S., Yuan, H., Shimotani, H., Morpurgo, A. F., and Iwasa, Y., PNAS 108, 13002 (2011).
[17] Zhang, Y., Ye, J., Matsuhashi, Y., and Iwasa, Y., Nano Lett. 12, 1136 (2012).
[18] Checkelsky, J. G., Ye, J., Onose, Y., Iwasa, Y., and Tokura, Y., Nat. Phys. 8, 729 (2012).
[19] Bao, W., Cai, X., Kim, D., Sridhara, K., and Fuhrer, M. S., Applied Physics Letters 102, 042104 (2013).
[20] Abrahams, E., Kravchenko, S. V., and Sarachik, M. P., Rev. Mod. Phys. 73, 251 (2001).
[21] Fivaz, R. and Mooser, E., Phys. Rev. 163, 743 (1967).
[22] Klein, T., Achatz, P., Kacmarcik, J., Marcenat, C., Gustafsson, F., Marcus, J., Bustarret, E., Pernot, J., Omnes, F., Sernelius, B. E., Persson, C., Ferreira da Silva, A., and Cytermann, C., Phys. Rev. B 75, 165313 (2007).
[23] Somoano, R. B., Hadek, V., and Rembaum, A., The Journal of Chemical Physics 58, 697 (1973).
[24] Woollam, J. A. and Somoano, R. B., Materials Science and Engineering 31, 289 (1977).
[25] Shanks, H. R., Solid State Communications 15, 753 (1974).
[26] Schooley, J. F., Hosler, W. R., Ambler, E., Becker, J. H., Cohen, M. L., and Koonce, C. S., Phys. Rev. Lett. 14, 305 (1965).
[27] Taguchi, Y., Kitora, A., and Iwasa, Y., Phys. Rev. Lett. 97, 107001 (2006).

Keywords

Field-induced superconductivity in MoS2

  • Y. J. Zhang (a1), J. T. Ye (a1) and Y. Iwasa (a1) (a2)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed