The Rashba-Hubbard model on the square lattice is the paradigmatic case for studying the effect of spin-orbit coupling, which breaks spin and inversion symmetry, in a correlated electron system. We employ a truncated-unity variant of the functional renormalization group which allows us to analyze magnetic and superconducting instabilities on equal footing. We derive phase diagrams depending on the strengths of Rasbha spin-orbit coupling, real second-neighbor hopping, and electron filling. We find commensurate and incommensurate magnetic phases which compete with d-wave superconductivity. Due to the breaking of inversion symmetry, singlet and triplet components mix; we quantify the mixing of d-wave singlet pairing with f-wave triplet pairing.
%0 Journal Article
%1 PhysRevB.107.125115
%A Beyer, Jacob
%A Hauck, Jonas B.
%A Klebl, Lennart
%A Schwemmer, Tilman
%A Kennes, Dante M.
%A Thomale, Ronny
%A Honerkamp, Carsten
%A Rachel, Stephan
%D 2023
%I American Physical Society
%J Phys. Rev. B
%K a
%N 12
%P 125115
%R 10.1103/PhysRevB.107.125115
%T Rashba spin-orbit coupling in the square-lattice Hubbard model: A truncated-unity functional renormalization group study
%U https://link.aps.org/doi/10.1103/PhysRevB.107.125115
%V 107
%X The Rashba-Hubbard model on the square lattice is the paradigmatic case for studying the effect of spin-orbit coupling, which breaks spin and inversion symmetry, in a correlated electron system. We employ a truncated-unity variant of the functional renormalization group which allows us to analyze magnetic and superconducting instabilities on equal footing. We derive phase diagrams depending on the strengths of Rasbha spin-orbit coupling, real second-neighbor hopping, and electron filling. We find commensurate and incommensurate magnetic phases which compete with d-wave superconductivity. Due to the breaking of inversion symmetry, singlet and triplet components mix; we quantify the mixing of d-wave singlet pairing with f-wave triplet pairing.
@article{PhysRevB.107.125115,
abstract = {The Rashba-Hubbard model on the square lattice is the paradigmatic case for studying the effect of spin-orbit coupling, which breaks spin and inversion symmetry, in a correlated electron system. We employ a truncated-unity variant of the functional renormalization group which allows us to analyze magnetic and superconducting instabilities on equal footing. We derive phase diagrams depending on the strengths of Rasbha spin-orbit coupling, real second-neighbor hopping, and electron filling. We find commensurate and incommensurate magnetic phases which compete with d-wave superconductivity. Due to the breaking of inversion symmetry, singlet and triplet components mix; we quantify the mixing of d-wave singlet pairing with f-wave triplet pairing.},
added-at = {2023-07-03T12:02:28.000+0200},
author = {Beyer, Jacob and Hauck, Jonas B. and Klebl, Lennart and Schwemmer, Tilman and Kennes, Dante M. and Thomale, Ronny and Honerkamp, Carsten and Rachel, Stephan},
biburl = {https://www.bibsonomy.org/bibtex/2c3934ee3633c5c273063f6e5be3458af/ctqmat},
day = 07,
doi = {10.1103/PhysRevB.107.125115},
interhash = {600f17de33eb85e4f2511f575b1b563c},
intrahash = {c3934ee3633c5c273063f6e5be3458af},
journal = {Phys. Rev. B},
keywords = {a},
month = {05},
number = 12,
numpages = {8},
pages = 125115,
publisher = {American Physical Society},
timestamp = {2024-02-23T11:01:19.000+0100},
title = {Rashba spin-orbit coupling in the square-lattice Hubbard model: A truncated-unity functional renormalization group study},
url = {https://link.aps.org/doi/10.1103/PhysRevB.107.125115},
volume = 107,
year = 2023
}