Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Kallin, Catherine"'
Metals can undergo geometric quantum phase transitions where the local curvature of the Fermi surface changes sign without a change in symmetry or topology. At the inflection points on the Fermi surface, the local curvature vanishes, leading to an an
Externí odkaz:
http://arxiv.org/abs/2310.07539
Higher angular momentum pairing states in Sr$_2$RuO$_4$ in the presence of longer-range interactions
Publikováno v:
Phys. Rev. B 106 (2022) 134512
The superconducting symmetry of Sr$_2$RuO$_4$ remains a puzzle. Time-reversal symmetry breaking $d_{x^2-y^2} + ig_{xy(x^2-y^2)}$ pairing has been proposed for reconciling multiple key experiments. However, its stability remains unclear. In this work,
Externí odkaz:
http://arxiv.org/abs/2207.11180
Publikováno v:
Phys. Rev. Lett. 127, 157001 (2021)
Recent theoretical work predicted emergence of chiral topological superconducting phase with spontaneously broken time reversal symmetry in a twisted bilayer composed of two high-$T_c$ cuprate monolayers, such as Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$. H
Externí odkaz:
http://arxiv.org/abs/2103.10445
Publikováno v:
Phys. Rev. B 101, 064507 (2020)
Spin-orbit coupling (SOC) plays a crucial role in determining the spin structure of an odd parity psedospin-triplet Cooper pairing state. Here, we present a thorough study of how SOC lifts the degeneracy among different p-wave pseudospin-triplet pair
Externí odkaz:
http://arxiv.org/abs/1911.01446
Publikováno v:
Phys. Rev. B 98, 214520 (2018)
Recent thermal conductivity measurements on $\mathrm{Sr_2 Ru O_4}$ [E. Hassinger et al., Phys. Rev. X 7, 011032 (2017)] were interpreted as favoring a pairing gap function with vertical line nodes while conflicting with chiral $p$-wave pairing. Motiv
Externí odkaz:
http://arxiv.org/abs/1810.00932
Publikováno v:
Phys. Rev. B 98, 094501 (2018)
The effects of finite temperature, Meissner screening and surface roughness on the spontaneous edge current for higher chirality quasi-two dimensional superconductors are studied in the continuum limit using the quasiclassical Eilenberger equations.
Externí odkaz:
http://arxiv.org/abs/1805.09432
Publikováno v:
Phys. Rev. B 96, 174511 (2017)
We identify an intrinsic mechanism of the anomalous Hall effect for non-symmorphic chiral superconductors. This mechanism relies on both a nontrivial multi-band chiral superconducting order parameter, which is a mixture of pairings of even and odd an
Externí odkaz:
http://arxiv.org/abs/1708.09781
Publikováno v:
Phys. Rev. B 94, 064508 (2016)
Sr$_2$RuO$_4$ is a prototypical multi-band superconductor with three bands crossing the Fermi level. These bands exhibit distinct dimensional characteristics, with one quasi-2D $\gamma$-band and two quasi-1D $\alpha$- and $\beta$-bands. This leads to
Externí odkaz:
http://arxiv.org/abs/1605.03800
Autor:
Kallin, Catherine, Berlinsky, John
Publikováno v:
Rep. Prog. Phys. 79 (2016) 054502 (17pp)
Chiral superconductivity is a striking quantum phenomenon in which an unconventional superconductor spontaneously develops an angular momentum and lowers its free energy by eliminating nodes in the gap. It is a topologically non-trivial state and, as
Externí odkaz:
http://arxiv.org/abs/1512.01151
Publikováno v:
Phys. Rev. B 91, 134505 (2015)
A locally gauge-invariant theory of the spin response of a thin film of $^3$He-$B$ film is given that describes fluctuation effects arising from the coupled dynamics of the superconducting order parameter (the collective mode) and in-gap Majorana sur
Externí odkaz:
http://arxiv.org/abs/1412.7153