Proximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor
Nontrivial topological superconductivity has received enormous attention due to its potential applications in topological quantum computing. The intrinsic issue concerning the correlation between a topological insulator and a superconductor is, however, still widely open. Here, we systemically repor...
| Main Authors: | , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2024
|
| _version_ | 1817931736592416768 |
|---|---|
| author | Dong, P Hou, X He, J Zhang, Y Ding, Y Zeng, X Wang, J Wu, Y Watanabe, K Taniguchi, T Xia, W Guo, Y Chen, Y Zhou, X Li, W Li, J |
| author_facet | Dong, P Hou, X He, J Zhang, Y Ding, Y Zeng, X Wang, J Wu, Y Watanabe, K Taniguchi, T Xia, W Guo, Y Chen, Y Zhou, X Li, W Li, J |
| author_sort | Dong, P |
| collection | OXFORD |
| description | Nontrivial topological superconductivity has received enormous attention due to its potential applications in topological quantum computing. The intrinsic issue concerning the correlation between a topological insulator and a superconductor is, however, still widely open. Here, we systemically report an emergent superconductivity in a cross junction composed of a magnetic topological insulator MnBi2Te4 and a conventional superconductor NbSe2. Remarkably, the interface indicates the existence of a reduced superconductivity at the surface of NbSe2 and a proximity-effect-induced superconductivity at the surface of MnBi2Te4. Furthermore, the in-plane angular-dependent magnetoresistance measurements unveil distinctive features indicative of unconventional pairing symmetry in these superconducting gaps. Our findings extend our views and ideas of topological superconductivity in the superconducting heterostructures with time-reversal symmetry breaking, offering an exciting opportunity to elucidate the cooperative effects on the surface state of a topological insulator aligning a superconductor. |
| first_indexed | 2024-12-09T03:26:46Z |
| format | Journal article |
| id | oxford-uuid:c3b590ad-3491-4333-b534-5763c032966e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-12-09T03:26:46Z |
| publishDate | 2024 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:c3b590ad-3491-4333-b534-5763c032966e2024-11-29T13:54:28ZProximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductorJournal articlehttp://purl.org/coar/resource_type/c_545buuid:c3b590ad-3491-4333-b534-5763c032966eEnglishSymplectic ElementsAmerican Physical Society2024Dong, PHou, XHe, JZhang, YDing, YZeng, XWang, JWu, YWatanabe, KTaniguchi, TXia, WGuo, YChen, YZhou, XLi, WLi, JNontrivial topological superconductivity has received enormous attention due to its potential applications in topological quantum computing. The intrinsic issue concerning the correlation between a topological insulator and a superconductor is, however, still widely open. Here, we systemically report an emergent superconductivity in a cross junction composed of a magnetic topological insulator MnBi2Te4 and a conventional superconductor NbSe2. Remarkably, the interface indicates the existence of a reduced superconductivity at the surface of NbSe2 and a proximity-effect-induced superconductivity at the surface of MnBi2Te4. Furthermore, the in-plane angular-dependent magnetoresistance measurements unveil distinctive features indicative of unconventional pairing symmetry in these superconducting gaps. Our findings extend our views and ideas of topological superconductivity in the superconducting heterostructures with time-reversal symmetry breaking, offering an exciting opportunity to elucidate the cooperative effects on the surface state of a topological insulator aligning a superconductor. |
| spellingShingle | Dong, P Hou, X He, J Zhang, Y Ding, Y Zeng, X Wang, J Wu, Y Watanabe, K Taniguchi, T Xia, W Guo, Y Chen, Y Zhou, X Li, W Li, J Proximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor |
| title | Proximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor |
| title_full | Proximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor |
| title_fullStr | Proximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor |
| title_full_unstemmed | Proximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor |
| title_short | Proximity-effect-induced superconductivity in a van der Waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor |
| title_sort | proximity effect induced superconductivity in a van der waals heterostructure consisting of a magnetic topological insulator and a conventional superconductor |
| work_keys_str_mv | AT dongp proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT houx proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT hej proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT zhangy proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT dingy proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT zengx proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT wangj proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT wuy proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT watanabek proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT taniguchit proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT xiaw proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT guoy proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT cheny proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT zhoux proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT liw proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor AT lij proximityeffectinducedsuperconductivityinavanderwaalsheterostructureconsistingofamagnetictopologicalinsulatorandaconventionalsuperconductor |