Chiral phonons in the pseudogap phase of cuprates
Sign Up to like & getrecommendations! Published in 2020 at "Nature Physics"
DOI: 10.1038/s41567-020-0965-y
Abstract: The nature of the pseudogap phase of cuprates remains a major puzzle1,2. One of its signatures is a large negative thermal Hall conductivity3, whose origin is as yet unknown. This is observed even in the… read more here.
Keywords: phase cuprates; phase; pseudogap phase; thermal hall ... See more keywords
Phonon drag thermal Hall effect in metallic strontium titanate
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2201975119
Abstract: Significance We find that the amplitude of the thermal Hall effect (THE) in strontium titanate drastically varies with atomic substitution. It is suppressed when Sr is substituted by Ca, pointing to the role of ferroelectric… read more here.
Keywords: strontium titanate; hall effect; phonon drag; hall ... See more keywords
Resonant thermal Hall effect of phonons coupled to dynamical defects
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2215141119
Abstract: Significance Modern quantum materials display numerous phases of electronic matter with many-particle quantum entanglement between the electrons. However, this entanglement is notoriously difficult to characterize experimentally. Recent experiments have shown that the thermal Hall effect… read more here.
Keywords: thermal hall; resonant thermal; hall effect; effect phonons ... See more keywords
Quantized thermal Hall conductance from edge current calculations in lattice models
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.155112
Abstract: The quantized thermal Hall effect is an important probe for detecting chiral topological order and revealing the nature of chiral gapless edge states. The standard Kubo formula approach for the thermal Hall conductance $\kappa_{xy}$ based… read more here.
Keywords: hall conductance; thermal hall; quantized thermal; hall ... See more keywords
Chiral phase transition and thermal Hall effect in an anisotropic spin model on the kagome lattice
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.054405
Abstract: We present a study of the thermal Hall effect in the extended Heisenberg model with $XXZ$ anisotropy in the kagome lattice. This model has the particularity that, in the classical case, and for a broad… read more here.
Keywords: thermal hall; chiral phase; phase transition; model ... See more keywords
Thermal Hall conductivity of electron-doped cuprates
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.105.115101
Abstract: Marie-Eve Boulanger, Gaël Grissonnanche, Étienne Lefrançois, Adrien Gourgout, Ke-Jun Xu, 3, 4 Zhi-Xun Shen, 3, 4 Richard L. Greene, and Louis Taillefer 6 Institut quantique, Département de physique & RQMP, Université de Sherbrooke, Sherbrooke, Québec,… read more here.
Keywords: doped cuprates; physics; thermal hall; hall conductivity ... See more keywords
Anomalous Nernst and thermal Hall effects in tilted Weyl semimetals
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.115202
Abstract: We study the anomalous Nernst and thermal Hall effects in a linearized low-energy model of a tilted Weyl semimetal, with two Weyl nodes separated in momentum space. For inversion symmetric tilt, we ... read more here.
Keywords: nernst thermal; tilted weyl; effects tilted; hall effects ... See more keywords
Thermal Hall effect and topological edge states in a square-lattice antiferromagnet
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.054422
Abstract: We show that the two dimensional spatial inversion-symmetry (SIS) broken square lattice antiferromagnet with easy-plane spin anisotropy exhibits a thermal Hall effect and the edge modes characterized by the Z 2 topological invariant. These topological… read more here.
Keywords: antiferromagnet; hall effect; square lattice; thermal hall ... See more keywords
Consideration of thermal Hall effect in undoped cuprates
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.205157
Abstract: A recent observation of thermal Hall effect of magnetic origin in underdoped cuprates calls for critical re-examination of low-energy magnetic dynamics in undoped antiferromagnetic compound on square lattice, where traditional, renormalized spin-wave theory was believed… read more here.
Keywords: model; thermal hall; consideration thermal; hall effect ... See more keywords
Temperature Enhancement of Thermal Hall Conductance Quantization.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.125.236802
Abstract: The quest for non-Abelian quasiparticles has inspired decades of experimental and theoretical efforts, where the scarcity of direct probes poses a key challenge. Among their clearest signatures is a thermal Hall conductance with quantized half-integer… read more here.
Keywords: hall; quantization; thermal hall; temperature enhancement ... See more keywords
Sign Structure of Thermal Hall Conductivity and Topological Magnons for In-Plane Field Polarized Kitaev Magnets.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.126.147201
Abstract: The appearance of half-quantized thermal Hall conductivity in α-RuCl_{3} in the presence of in-plane magnetic fields has been taken as a strong evidence for the Kitaev spin liquid. Apart from the quantization, the observed sign… read more here.
Keywords: sign structure; hall; thermal hall; hall conductivity ... See more keywords