Topological properties of ferromagnetic superconductors
Abstract
Here, a variety of heavy fermion superconductors, such as UCoGe, UGe2, and URhGe exhibit a striking coexistence of bulk ferromagnetism and superconductivity. In the first two materials, the magnetic moment decreases with pressure, and vanishes at a ferromagnetic quantum critical point (qcp). Remarkably, the superconductivity in UCoGe varies smoothly with pressure across the qcp and exists in both the ferromagnetic and paramagnetic regimes. We argue that in UCoGe, spin-orbit interactions stabilize a time-reversal invariant odd-parity superconductor in the high pressure paramagnetic regime. Based on a simple phenomenological model, we predict that the transition from the paramagnetic normal state to the phase where superconductivity and ferromagnetism coexist is a first-order transition.
- Authors:
-
- Stanford Univ., Stanford, CA (United States)
- Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1257745
- Alternate Identifier(s):
- OSTI ID: 1249944
- Report Number(s):
- SLAC-PUB-16553
Journal ID: ISSN 2469-9950
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 13; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Cheung, Alfred K. C., and Raghu, S. Topological properties of ferromagnetic superconductors. United States: N. p., 2016.
Web. doi:10.1103/PhysRevB.93.134516.
Cheung, Alfred K. C., & Raghu, S. Topological properties of ferromagnetic superconductors. United States. https://doi.org/10.1103/PhysRevB.93.134516
Cheung, Alfred K. C., and Raghu, S. Wed .
"Topological properties of ferromagnetic superconductors". United States. https://doi.org/10.1103/PhysRevB.93.134516. https://www.osti.gov/servlets/purl/1257745.
@article{osti_1257745,
title = {Topological properties of ferromagnetic superconductors},
author = {Cheung, Alfred K. C. and Raghu, S.},
abstractNote = {Here, a variety of heavy fermion superconductors, such as UCoGe, UGe2, and URhGe exhibit a striking coexistence of bulk ferromagnetism and superconductivity. In the first two materials, the magnetic moment decreases with pressure, and vanishes at a ferromagnetic quantum critical point (qcp). Remarkably, the superconductivity in UCoGe varies smoothly with pressure across the qcp and exists in both the ferromagnetic and paramagnetic regimes. We argue that in UCoGe, spin-orbit interactions stabilize a time-reversal invariant odd-parity superconductor in the high pressure paramagnetic regime. Based on a simple phenomenological model, we predict that the transition from the paramagnetic normal state to the phase where superconductivity and ferromagnetism coexist is a first-order transition.},
doi = {10.1103/PhysRevB.93.134516},
journal = {Physical Review B},
number = 13,
volume = 93,
place = {United States},
year = {Wed Apr 27 00:00:00 EDT 2016},
month = {Wed Apr 27 00:00:00 EDT 2016}
}
Web of Science
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Works referencing / citing this record:
Nearly ferromagnetic spin-triplet superconductivity
journal, August 2019
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