Signature of magnetoelectric coupling driven finite momentum pairing in 3D ising superconductor
Abstract The finite momentum superconducting paring states (FMPs) represent a forefront of condensed matter physics. Here we report experimental evidence of FMP in a locally noncentrosymmetric bulk superconductor 4H b -TaS2. Using hard X-ray diffraction and angle-resolved photoemission spectroscopy,...
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-07-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-61882-z |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849342723752984576 |
|---|---|
| author | F. Z. Yang H. D. Zhang Saswata Mandal F. Y. Meng G. Fabbris A. H. Said P. Mercado Lozano A. Rajapitamahuni E. Vescovo C. Nelson S. Lin Y. Park E. M. Clements T. Z. Ward H.-N. Lee H. C. Lei C. X. Liu H. Miao |
| author_facet | F. Z. Yang H. D. Zhang Saswata Mandal F. Y. Meng G. Fabbris A. H. Said P. Mercado Lozano A. Rajapitamahuni E. Vescovo C. Nelson S. Lin Y. Park E. M. Clements T. Z. Ward H.-N. Lee H. C. Lei C. X. Liu H. Miao |
| author_sort | F. Z. Yang |
| collection | DOAJ |
| description | Abstract The finite momentum superconducting paring states (FMPs) represent a forefront of condensed matter physics. Here we report experimental evidence of FMP in a locally noncentrosymmetric bulk superconductor 4H b -TaS2. Using hard X-ray diffraction and angle-resolved photoemission spectroscopy, we reveal unusual 2D ferro-rotational charge density wave (CDW) and weak interlayer hopping in 4H b -TaS2. The superconducting upper critical field, H c2, linearly increases via decreasing temperature, and well exceeds the Pauli limit, suggesting the dominant orbital pair-breaking mechanism. Remarkably, we observed evidence of field-induced superconductivity-to-superconductivity transition that breaks continuous rotational symmetry of the s-wave uniform pairing in the Bardeen-Cooper-Schrieffer theory down to the six-fold rotation symmetry. Ginzburg-Landau free energy analysis shows that magnetoelectric coupling, induced by 2D ferro-rotational CDW, stabilizes FMP that provides an explanation of the lowering rotation symmetry. Our results provide a new understanding of unconventional superconducting behaviors of the bulk quantum heterostructure 4H b -TaS2. |
| format | Article |
| id | doaj-art-ebbcec50dcab4c1d8eb41ba4eea61df7 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-ebbcec50dcab4c1d8eb41ba4eea61df72025-08-20T03:43:16ZengNature PortfolioNature Communications2041-17232025-07-011611910.1038/s41467-025-61882-zSignature of magnetoelectric coupling driven finite momentum pairing in 3D ising superconductorF. Z. Yang0H. D. Zhang1Saswata Mandal2F. Y. Meng3G. Fabbris4A. H. Said5P. Mercado Lozano6A. Rajapitamahuni7E. Vescovo8C. Nelson9S. Lin10Y. Park11E. M. Clements12T. Z. Ward13H.-N. Lee14H. C. Lei15C. X. Liu16H. Miao17Materials Science and Technology Division, Oak Ridge National LaboratoryMaterials Science and Technology Division, Oak Ridge National LaboratoryDepartment of Physics, The Pennsylvania State UniversitySchool of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of ChinaAdvanced Photon Source, Argonne National LaboratoryAdvanced Photon Source, Argonne National LaboratoryAdvanced Photon Source, Argonne National LaboratoryNational Synchrotron Light Source II, Brookhaven National LaboratoryNational Synchrotron Light Source II, Brookhaven National LaboratoryNational Synchrotron Light Source II, Brookhaven National LaboratoryMaterials Science and Technology Division, Oak Ridge National LaboratoryMaterials Science and Technology Division, Oak Ridge National LaboratoryMaterials Science and Technology Division, Oak Ridge National LaboratoryMaterials Science and Technology Division, Oak Ridge National LaboratoryMaterials Science and Technology Division, Oak Ridge National LaboratorySchool of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of ChinaDepartment of Physics, The Pennsylvania State UniversityMaterials Science and Technology Division, Oak Ridge National LaboratoryAbstract The finite momentum superconducting paring states (FMPs) represent a forefront of condensed matter physics. Here we report experimental evidence of FMP in a locally noncentrosymmetric bulk superconductor 4H b -TaS2. Using hard X-ray diffraction and angle-resolved photoemission spectroscopy, we reveal unusual 2D ferro-rotational charge density wave (CDW) and weak interlayer hopping in 4H b -TaS2. The superconducting upper critical field, H c2, linearly increases via decreasing temperature, and well exceeds the Pauli limit, suggesting the dominant orbital pair-breaking mechanism. Remarkably, we observed evidence of field-induced superconductivity-to-superconductivity transition that breaks continuous rotational symmetry of the s-wave uniform pairing in the Bardeen-Cooper-Schrieffer theory down to the six-fold rotation symmetry. Ginzburg-Landau free energy analysis shows that magnetoelectric coupling, induced by 2D ferro-rotational CDW, stabilizes FMP that provides an explanation of the lowering rotation symmetry. Our results provide a new understanding of unconventional superconducting behaviors of the bulk quantum heterostructure 4H b -TaS2.https://doi.org/10.1038/s41467-025-61882-z |
| spellingShingle | F. Z. Yang H. D. Zhang Saswata Mandal F. Y. Meng G. Fabbris A. H. Said P. Mercado Lozano A. Rajapitamahuni E. Vescovo C. Nelson S. Lin Y. Park E. M. Clements T. Z. Ward H.-N. Lee H. C. Lei C. X. Liu H. Miao Signature of magnetoelectric coupling driven finite momentum pairing in 3D ising superconductor Nature Communications |
| title | Signature of magnetoelectric coupling driven finite momentum pairing in 3D ising superconductor |
| title_full | Signature of magnetoelectric coupling driven finite momentum pairing in 3D ising superconductor |
| title_fullStr | Signature of magnetoelectric coupling driven finite momentum pairing in 3D ising superconductor |
| title_full_unstemmed | Signature of magnetoelectric coupling driven finite momentum pairing in 3D ising superconductor |
| title_short | Signature of magnetoelectric coupling driven finite momentum pairing in 3D ising superconductor |
| title_sort | signature of magnetoelectric coupling driven finite momentum pairing in 3d ising superconductor |
| url | https://doi.org/10.1038/s41467-025-61882-z |
| work_keys_str_mv | AT fzyang signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT hdzhang signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT saswatamandal signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT fymeng signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT gfabbris signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT ahsaid signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT pmercadolozano signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT arajapitamahuni signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT evescovo signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT cnelson signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT slin signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT ypark signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT emclements signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT tzward signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT hnlee signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT hclei signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT cxliu signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor AT hmiao signatureofmagnetoelectriccouplingdrivenfinitemomentumpairingin3disingsuperconductor |