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Enhanced Critical Field of Superconductivity at an Oxide Interface.

Publication ,  Journal Article
Al-Tawhid, AH; Poage, SJ; Salmani-Rezaie, S; Gonzalez, A; Chikara, S; Muller, DA; Kumah, DP; Gastiasoro, MN; Lorenzana, J; Ahadi, K
Published in: Nano letters
August 2023

The nature of superconductivity and its interplay with strong spin-orbit coupling at the KTaO3(111) interfaces remain a subject of debate. To address this problem, we grew epitaxial LaMnO3/KTaO3(111) heterostructures. We show that superconductivity is robust against the in-plane magnetic field, with the critical field of superconductivity reaching ∼25 T in optimally doped heterostructures. The superconducting order parameter is highly sensitive to the carrier density. We argue that spin-orbit coupling drives the formation of anomalous quasiparticles with vanishing magnetic moment, providing significant condensate immunity against magnetic fields beyond the Pauli paramagnetic limit. These results offer design opportunities for superconductors with extreme resilience against the applied magnetic fields.

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Published In

Nano letters

DOI

EISSN

1530-6992

ISSN

1530-6984

Publication Date

August 2023

Volume

23

Issue

15

Start / End Page

6944 / 6950

Related Subject Headings

  • Nanoscience & Nanotechnology
 

Citation

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Chicago
ICMJE
MLA
NLM
Al-Tawhid, A. H., Poage, S. J., Salmani-Rezaie, S., Gonzalez, A., Chikara, S., Muller, D. A., … Ahadi, K. (2023). Enhanced Critical Field of Superconductivity at an Oxide Interface. Nano Letters, 23(15), 6944–6950. https://doi.org/10.1021/acs.nanolett.3c01571
Al-Tawhid, Athby H., Samuel J. Poage, Salva Salmani-Rezaie, Antonio Gonzalez, Shalinee Chikara, David A. Muller, Divine P. Kumah, Maria N. Gastiasoro, José Lorenzana, and Kaveh Ahadi. “Enhanced Critical Field of Superconductivity at an Oxide Interface.Nano Letters 23, no. 15 (August 2023): 6944–50. https://doi.org/10.1021/acs.nanolett.3c01571.
Al-Tawhid AH, Poage SJ, Salmani-Rezaie S, Gonzalez A, Chikara S, Muller DA, et al. Enhanced Critical Field of Superconductivity at an Oxide Interface. Nano letters. 2023 Aug;23(15):6944–50.
Al-Tawhid, Athby H., et al. “Enhanced Critical Field of Superconductivity at an Oxide Interface.Nano Letters, vol. 23, no. 15, Aug. 2023, pp. 6944–50. Epmc, doi:10.1021/acs.nanolett.3c01571.
Al-Tawhid AH, Poage SJ, Salmani-Rezaie S, Gonzalez A, Chikara S, Muller DA, Kumah DP, Gastiasoro MN, Lorenzana J, Ahadi K. Enhanced Critical Field of Superconductivity at an Oxide Interface. Nano letters. 2023 Aug;23(15):6944–6950.
Journal cover image

Published In

Nano letters

DOI

EISSN

1530-6992

ISSN

1530-6984

Publication Date

August 2023

Volume

23

Issue

15

Start / End Page

6944 / 6950

Related Subject Headings

  • Nanoscience & Nanotechnology