Baidya, P and Sahani, D and Kundu, HK and Kaur, S and Tiwari, P and Bagwe, V and Jesudasan, J and Narayan, A and Raychaudhuri, P and Bid, A (2021) Transition from three- To two-dimensional Ising superconductivity in few-layer NbSe2 by proximity effect from van der Waals heterostacking. In: Physical Review B, 104 (17).
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Abstract
We report the experimental observation of Ising superconductivity in three-dimensional NbSe2 stacked with single-layer MoS2. The angular dependence of the upper critical magnetic field and the temperature dependence of the upper parallel critical field confirm the appearance of two-dimensional Ising superconductivity in three-dimensional NbSe2 with a single-layer MoS2 overlay. We show that the superconducting phase has strong Ising spin-orbit correlations which make the holes spin nondegenerate. Our observation of Ising superconductivity in heterostructures of few-layer NbSe2 of thickness �15 nm with single-layer MoS2 raises the interesting prospect of observing topological chiral superconductors with nontrivial Chern numbers in a momentum-space spin-split fermionic system. © 2021 American Physical Society.
| Item Type: | Journal Article |
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| Publication: | Physical Review B |
| Publisher: | American Physical Society |
| Additional Information: | The copyright for this article belongs to Authors |
| Keywords: | Ising model; Layered semiconductors; Niobium compounds; Selenium compounds; Sulfur compounds; Temperature distribution; Van der Waals forces, Angular dependence; Heterostacking; Parallel critical fields; Proximity effects; Single layer; Super conducting phasis; Temperature dependence; Two-dimensional; Upper critical magnetic fields; Van der Waal, Molybdenum compounds |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 03 Dec 2021 08:46 |
| Last Modified: | 03 Dec 2021 08:46 |
| URI: | http://eprints.iisc.ac.in/id/eprint/70615 |
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