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Superconductivity protected by spin-valley locking in ion-gated MoS2
The electric-field-induced superconducting properties of MoS2 are investigated by means of magneto-transport measurements, uncovering evidence of spin–momentum locking. Symmetry-breaking has been…
Superconductivity Series in Transition Metal Dichalcogenides by Ionic Gating
Alternative gating using KClO4/polyethylene glycol enabled a crossover from surface doping to bulk doping, which induced superconductivities in MoTe2 and WS2 electrochemically and greatly enriched the TMD superconductor families and unveiled critical methodology to expand the capability of ionic gating to other materials.
Metallic ground state in an ion-gated two-dimensional superconductor
- Yu Saito, Y. Kasahara, Jianting Ye, Y. Iwasa, T. Nojima
- Materials Science, PhysicsScience
- 4 March 2015
It is reported that an ion-gated zirconium nitride chloride surface, exhibiting a dome-shaped phase diagram with a maximum critical temperature of 14.8 kelvin, behaves as a superconductor persisting to the 2D limit.
Independent superconductors and correlated insulators in twisted bilayer graphene
- Yu Saito, Jingyuan Ge, Kenji Watanabe, T. Taniguchi, A. Young
- Materials Science, PhysicsNature Physics
- 29 November 2019
When two sheets of graphene are stacked on top of each other with a small twist of angle θ ≈ 1.1° between them, theory predicts the formation of a flat electronic band 1 , 2 . Experiments have shown…
Highly crystalline 2D superconductors
Recent advances in materials fabrication have enabled the manufacturing of ordered 2D electron systems, such as heterogeneous interfaces, atomic layers grown by molecular beam epitaxy, exfoliated…
Nonreciprocal charge transport in noncentrosymmetric superconductors
Results indicate that electrons feel the noncentrosymmetric crystal potential much coherently and sensitively over the correlation length when they form Cooper pairs, and show open a new route to enhance the nonreciprocal response toward novel functionalities, including superconducting diodes.
Quantum phase transitions in highly crystalline two-dimensional superconductors
According to the magneto-transport measurements in 2D superconducting ZrNCl and MoS2, it is found that the quantum metallic state commonly observed at low magnetic fields is converted via the quantum Griffiths state to the weakly localized metal at high magnetic fields in a crystalline two-dimensional superconductor.
Nonreciprocal transport in gate-induced polar superconductor SrTiO3
The present result proves that the nonreciprocal transport is a powerful tool for investigating the interfacial/polar superconductors without inversion symmetry, where rich exotic features are theoretically prognosticated.
Isospin Pomeranchuk effect and the entropy of collective excitations in twisted bilayer graphene
In condensed matter systems, higher temperatures typically disfavors ordered phases leading to an upper critical temperature for magnetism, superconductivity, and other phenomena. A notable exception…
Decoupling superconductivity and correlated insulators in twisted bilayer graphene
When bilayer graphene is rotationally faulted to an angle θ ≈ 1.1◦, theory predicts the formation of a flat electronic band and correlated insulating, superconducting, and ferromagnetic states have…