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Superconductivity Series in Transition Metal Dichalcogenides by Ionic Gating
Open accessAbstract
Functionalities of two-dimensional (2D) crystals based on semiconducting transition metal dichalcogenides (TMDs) have now stemmed from simple field effect transistors (FETs) to a variety of electronic and opto-valleytronic devices and even to superconductivity. Among them, superconductivity is the least studied property in TMDs due to methodological difficulty accessing it in different TMD species. Here, we report the systematic study of superconductivity in MoSe 2, MoTe 2 and WS 2 by ionic gating in different regimes. Electrostatic gating using ionic liquid was able to induce superconductivity in MoSe 2 but not in MoTe 2 because of inefficient electron accumulation limited by electronic band alignment. Alternative gating using KClO 4/polyethylene glycol enabled a crossover from surface doping to bulk doping, which induced superconductivities in MoTe 2 and WS 2 electrochemically. These new varieties greatly enriched the TMD superconductor families and unveiled critical methodology to expand the capability of ionic gating to other materials.
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Cites
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., & Strano, M. S. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.193 · Cited by 16,374
Two-dimensional atomic crystals
Novoselov, K. S., Jiang, D., Schedin, F., Booth, T. J., Khotkevich, V. V., Morozov, S. V., & Geim, A. K. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0502848102 · Cited by 11,788
Cited by
Nonreciprocal charge transport in noncentrosymmetric superconductors
Wakatsuki, R., Saito, Y., Hoshino, S., Itahashi, Y. M., Ideue, T., Ezawa, M., Iwasa, Y., & Nagaosa, N. (2017) · Science Advances · doi:10.1126/sciadv.1602390 · Cited by 365
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Metadata
- Authors
- Shi, W., Ye, J., Zhang, Y., Suzuki, R., Yoshida, M., Miyazaki, J., Inoue, N., Saito, Y., & Iwasa, Y.
- Venue
- Scientific Reports
- Published
- 2015-08-03
- Volume
- 5
- Issue
- 1
- Pages
- 12534-12534
- ISSN
- 2045-2322 (ISSN-L)
- OpenAlex
- W2408969993
- Cited by
- 300
- References
- 2
- FWCI
- 14.26
- Type
- journal article
- Language
- en
- Open access
- gold
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- Shi, W., Ye, J., Zhang, Y., Suzuki, R., Yoshida, M., Miyazaki, J., Inoue, N., Saito, Y., & Iwasa, Y. (2015). Superconductivity Series in Transition Metal Dichalcogenides by Ionic Gating. Scientific Reports. https://doi.org/10.1038/srep12534
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