TY - JOUR
T1 - Dynamical vortex phase diagram of two-dimensional superconductivity in gated Mo S2
AU - Saito, Yu
AU - Itahashi, Yuki M.
AU - Nojima, Tsutomu
AU - Iwasa, Yoshihiro
N1 - Funding Information:
We thank N. Nagaosa for fruitful discussions. Y.S. was supported by the Japan Society for the Promotion of Science (JSPS) through a research fellowship for young scientists (Grant-in-Aid for JSPS Research Fellow, JSPS KAKENHI Grant No. JP15J07681) and the Elings Prize Fellowship from University of California at Santa Barbara. This work was supported by Grant-in-Aid for Scientific Research S (JSPS KAKENHI Grant No. JP19H05602) from JSPS and for Scientific Research on Innovative Areas (JSPS KAKENHI Grant No. JP16H01061) from JSPS.
Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/7
Y1 - 2020/7
N2 - Recent discoveries of two-dimensional (2D) superconductors have uncovered various aspects of physical properties including vortex matter. In this paper, we report transport properties and a dynamical phase diagram at zero magnetic field in ion-gated MoS2. In addition to the universal jump in the current-voltage characteristic showing unambiguous evidence of the Berezinskii-Kosterlitz-Thouless transition, we observed multiple peaks in the temperature and current derivative of the electrical resistance, based on which a dynamical phase diagram in the current-temperature plane was constructed. We found current-induced dynamical states of vortex-antivortex pairs, containing that with the phase slip line. Also, we present a global phase diagram of vortices in gated MoS2 which captures the nature of vortex matter of clean 2D superconductors.
AB - Recent discoveries of two-dimensional (2D) superconductors have uncovered various aspects of physical properties including vortex matter. In this paper, we report transport properties and a dynamical phase diagram at zero magnetic field in ion-gated MoS2. In addition to the universal jump in the current-voltage characteristic showing unambiguous evidence of the Berezinskii-Kosterlitz-Thouless transition, we observed multiple peaks in the temperature and current derivative of the electrical resistance, based on which a dynamical phase diagram in the current-temperature plane was constructed. We found current-induced dynamical states of vortex-antivortex pairs, containing that with the phase slip line. Also, we present a global phase diagram of vortices in gated MoS2 which captures the nature of vortex matter of clean 2D superconductors.
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U2 - 10.1103/PhysRevMaterials.4.074003
DO - 10.1103/PhysRevMaterials.4.074003
M3 - Article
AN - SCOPUS:85092932668
SN - 2475-9953
VL - 4
JO - Physical Review Materials
JF - Physical Review Materials
IS - 7
M1 - 074003
ER -