activity
20182021
most citedExact diagonalization study of the Hubbard-parametrized four-spin ring exchange model on a square lattice

21 citations · 39 across the 2 of their papers we have counts for

collaborators

9 papers

cond-mat.supr-con2021

Superconducting state of SrRuO in the presence of longer-range Coulomb interactions

Astrid T. Rømer, P. J. Hirschfeld, Brian M. Andersen

The symmetry of the superconducting condensate in SrRuO remains controversial after nuclear magnetic resonance (NMR) experiments recently overturned the dominant chiral

cond-mat.supr-con202018 cited

Orbital-dependent self-energy effects and consequences for the superconducting gap structure in multi-orbital correlated electron systems

Kristofer Björnson, Andreas Kreisel, Astrid T. Rømer +1

We perform a theoretical study of the effects of electronic correlations on the superconducting gap structure of multi-band superconductors. In particular, by comparing standard RP…

cond-mat.supr-con2020

Nature of the magnetic stripes in fully oxygenated LaCuO

Ana-Elena Tutueanu, Henrik Jacobsen, Pia Jensen Ray +12

We present triple-axis neutron scattering studies of static and dynamic magnetic stripes in an optimally oxygen-doped cuprate superconductor, LaCuO, which exhibits a…

cond-mat.supr-con2020

Theory of Strain-Induced Magnetic Order and Splitting of and in SrRuO

Astrid T. Rømer, Andreas Kreisel, Marvin A. Müller +3

The internal structure of the superconducting state in SrRuO remains elusive at present, and exhibits evidence for time-reversal symmetry breaking. Recent muon spin relaxat…

cond-mat.supr-con2020

Fluctuation-driven superconductivity in SrRuO from weak repulsive interactions

Astrid T. Rømer, Brian M. Andersen

We provide results for the leading superconducting instabilities for a model pertaining to SrRuO obtained within spin-fluctuation mediated superconductivity in the very wea…

cond-mat.supr-con2019

Pairing in the Two-Dimensional Hubbard Model from Weak to Strong Coupling

Astrid T. Rømer, Thomas A. Maier, Andreas Kreisel +3

The Hubbard model is the simplest model that is believed to exhibit superconductivity arising from purely repulsive interactions, and has been extensively applied to explore a vari…