Journal
PHYSICAL REVIEW RESEARCH
Volume 1, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.1.033108
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Funding
- Emergent Phenomena in Quantum Systems initiative of the Gordon and Betty Moore Foundation
- Aker Scholarship
- Astor Junior Research Fellowship of New College, Oxford
- EPSRC [EP/N01930X/1]
- EPSRC [EP/N01930X/1, EP/S020527/1] Funding Source: UKRI
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We compute and compare even- and odd-parity superconducting order parameters of strontium ruthenate (Sr2RuO4) in the limit of weak interactions, resulting from a fully microscopic three-dimensional model including spin-orbit coupling. We find that odd-parity helical and even-parity d-wave order are favored for smaller and larger values of the Hund's coupling parameter J, respectively. Both orders are found compatible with specific heat data and the recently reported nuclear magnetic resonance (NMR) Knight shift drop [A. Pustogow et al., Nature 574, 72 (2019)]. The chiral p-wave order, numerically very competitive with helical order, sharply conflicts with the NMR experiment.
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