15 papers
Magnon-Mediated Superconductivity in a 2D Itinerant Ferromagnet with Weak Easy-plane Magnetic Anisotropy
Vladimir Calvera, Heqiu Li, Yijie Wang +2
Motivated by recent observations of superconductivity in a quarter-metal state of spin- and valley- polarized graphene multilayers, we investigate pairing within a ferromagnetic ph…
Spatially resolved collective modes in d-wave superconductors
Kazi Ranjibul Islam, Samuel Awelewa, Andrey V. Chubukov +1
We analyze the dispersion of collective modes in a superconductor with wave symmetry of the order parameter in the presence of long-range Coulomb interaction. We use diagrammat…
Collective excitations and stability of a non-Fermi liquid state near a quantum-critical point of a metal
Yasha Gindikin, Dmitrii L. Maslov, Andrey V. Chubukov
We examine the spectral properties of collective excitations with finite angular momentum for a system of interacting fermions near a Pomeranchuk quantum critical point, both i…
Pseudogap in electron-doped cuprates: thermal precursor to magnetism
Emmanouil K. Kokkinis, Andrey V. Chubukov
We study pseudogap behavior in a metal near an antiferromagnetic instability and apply the results to electron-doped cuprates. We associate pseudogap behavior with thermal magnetic…
Stoner Transition at Finite Temperature in a 2D Isotropic Fermi Liquid
R. David Mayrhofer, Megan Schoenzeit, Andrey V. Chubukov
We present the results of a mean-field analysis of the temperature evolution of a ferromagnetic Stoner transition in a two-dimensional (2D) system with an isotropic dispersion $\va…
Superconductivity via paramagnon and magnon exchange in a 2D near-ferromagnetic full metal and ferromagnetic half-metal
Zachary M Raines, Andrey V Chubukov
We study superconductivity in paramagnetic and ferromagnetically-ordered phases in a two-dimensional electron system with parabolic fermionic dispersion and short-range repulsive i…