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Related papers: Inter-orbital singlet pairing in Sr$_2$RuO$_4$: a …

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We study the spin-orbit coupling in spin-triplet Cooper pairs and clarify multiple superconducting (SC) phases in Sr$_2$RuO$_4$. Based on the analysis of the three-orbital Hubbard model with atomic LS coupling, we show some selection rules…

Superconductivity · Physics 2015-06-22 Youichi Yanase , Shuhei Takamatsu , Masafumi Udagawa

We provide a detailed quantitative analysis of transport properties in the p-wave superconducting state of Sr2RuO4. Specifically, we calculate ultrasound attenuation rate and electronic thermal conductivity within the mean field…

Superconductivity · Physics 2009-11-11 Takuji Nomura

We study the spin dynamics in a p-wave superconductor at the nesting vector associated with $\alpha$ and $\beta$ bands in Sr$_2$RuO$_4$. We find a collective mode at the nesting vector in the superconducting phase identified as the…

Superconductivity · Physics 2009-10-31 Hae-Young Kee

The body centered tetragonal structure of Sr_2RuO_4 gives rise to umklapp scattering enhanced inter-plane pair correlations in the d_{yz} and d_{zx} orbitals. Based on symmetry arguments, Hund's rule coupling, and a bosonized description of…

Strongly Correlated Electrons · Physics 2009-11-07 Ralph Werner

We demonstrate that strong inter-orbital interaction is very efficient to achieve superconductivity due to magnetic fluctuations in the iron pnictides. Fermi surface states that are coupled by the antiferromagnetic wave vector are often of…

Superconductivity · Physics 2015-05-13 Junhua Zhang , Rastko Sknepnek , Rafael M. Fernandes , Joerg Schmalian

We show the emergence of a new class of superconductivity in multiorbital systems, focusing on non-Kramers f$^2$ states. The Cooper pairs in this class of superconductivity mainly consist of local pairs with the same symmetry as the local…

Superconductivity · Physics 2017-10-25 Kazumasa Hattori , Takuya Nomoto , Takashi Hotta , Hiroaki Ikeda

On the basis of a three orbital model and an effective attractive interaction between electrons we investigate the possible superconducting states, with $p$ and $f$-wave internal symmetry, of Sr$_2$RuO$_4$. For an orbital dependent…

Superconductivity · Physics 2009-11-07 James F. Annett , G. Litak , B. L. Gyorffy , K. I. Wysokinsi

The NbSe$_2$ monolayer with Rashba spin-orbit coupling represents a paradigmatic example of an Ising superconductor on a substrate. Using a single-band model and symmetry analysis, we present general superconducting pairing functions beyond…

Superconductivity · Physics 2024-07-16 Jozef Haniš , Marko Milivojević , Martin Gmitra

Unconventional superconductivity in quasi--two-dimensional systems is commonly identified through the emergence of Andreev bound states (ABS) at in-plane edges, while surfaces perpendicular to out-of-plane direction remain fully gapped due…

Superconductivity · Physics 2026-04-09 G. Csire , Y. Fukaya , M. Cuoco , Y. Tanaka , R. K. Kremer , A. S. Gibbs , G. A. Ummarino , D. Daghero , R. S. Gonnelli

Sr2RuO4 is at present the best candidate for being a superconducting analogue of the triplet superfluidity in ^3He. This material is a good (albeit correlated) Fermi liquid in the normal state and an exotic superconductor below Tc. The…

Superconductivity · Physics 2015-06-24 K. I. Wysokinski , G. Litak , J. F. Annett , B. L. Gyorffy

The intraorbital repulsive Hubbard interaction cannot lead to attractive superconducting pairing states, except through the Kohn-Luttinger mechanism. This situation may change when we include additional local interactions such as the…

Superconductivity · Physics 2019-02-06 Alfred K. C. Cheung , D. F. Agterberg

The odd-parity spin-triplet Cooper pairing states show a six-fold degeneracy for a quasi-two-dimensional electron system. In this article we show how spin-orbit coupling can lift this degeneracy for Sr_2RuO_4 taking the band structure based…

Superconductivity · Physics 2009-10-31 Kwai-Kong Ng , Manfred Sigrist

We present a first-principle study of spin-orbit coupling effects on the Fermi surface of Sr2RuO4 and Sr2RhO4. For nearly degenerate bands, spin-orbit coupling leads to a dramatic change of the Fermi surface with respect to non-relativistic…

Strongly Correlated Electrons · Physics 2009-11-13 M. W. Haverkort , I. S. Elfimov , L. H. Tjeng , G. A. Sawatzky , A. Damascelli

Motivated by the experimental detection of superconductivity in the low-carrier density half-Heusler compound YPtBi, we study the pairing instabilities of three-dimensional strongly spin-orbit coupled semimetals with a quadratic band…

Superconductivity · Physics 2018-01-03 Lucile Savary , Jonathan Ruhman , Jörn W. F. Venderbos , Liang Fu , Patrick A. Lee

We investigate the quasiparticle dynamics in the two-orbital Hubbard model on the square lattice at quarter filling by means of the cellular dynamical mean field theory. We show that the Fermi-liquid state is stabilized up to the large…

Strongly Correlated Electrons · Physics 2015-05-13 Tomoko Kita , Takuma Ohashi , Sei-ichiro Suga

We investigate pairing states realized at the (001) interface of a spin-triplet superconductor Sr$_2$RuO$_4$ on the basis of microscopic calculations. Because of a Rashba-type spin-orbit interaction induced at the interface, strong…

Superconductivity · Physics 2015-05-13 Yasuhiro Tada , Norio Kawakami , Satoshi Fujimoto

The single-layered ruthenate Sr$_2$RuO$_4$ has attracted a great deal of interest as a spin-triplet superconductor with an order parameter that may potentially break time reversal invariance and host half-quantized vortices with Majorana…

We use functional renormalization group method to study a three-orbital model for superconducting Sr$_2$RuO$_4$. Although the pairing symmetry is found to be chiral $p$-wave, the atomic spin-orbit coupling induces near-nodes for…

Superconductivity · Physics 2019-01-23 Wan-Sheng Wang , Cong-Cong Zhang , Fu-Chun Zhang , Qiang-Hua Wang

We study the superconducting state of Sr$_2$RuO$_4$ on the bases of a phenomenological but orbital specific description of the electron-electron attraction and a realistic quantitative account of the electronic structure in the normal…

Superconductivity · Physics 2009-11-10 James F. Annett , B. L. Gyorffy , G. Litak , K. I. Wysokinski

Finite-momentum pairing in a Pauli-limited spin-singlet superconductor arises from the pair-breaking effects of an external Zeeman field, a mechanism which is not applicable in odd-parity spin-triplet superconductors. However, in…

Superconductivity · Physics 2024-07-17 Jonathan Clepkens , Hae-Young Kee