Origin of the phonon Hall effect in rare-earth garnets.
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The phonon Hall effect has been observed in the paramagnetic insulator Tb3Gd5O12 and it is shown that this effect is due to resonant skew scattering of phonons from the crystal field states of superstoichiometric Tb(3+) ions.Abstract:
The phonon Hall effect has been observed in the paramagnetic insulator Tb3Gd5O12. A magnetic field applied perpendicularly to a heat current induces a temperature gradient that is perpendicular to both the field and the current. We show that this effect is due to resonant skew scattering of phonons from the crystal field states of superstoichiometric Tb(3+) ions. This scattering originates from the coupling between the quadrupole moment of Tb(3+) ions and the lattice strain. The estimated magnitude of the effect is consistent with experimental observations at T∼5 K and can be significantly enhanced by increasing temperature.read more
Citations
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Solid State Communications 112 (1999) 383–386
A. G. Souza Filho,Paulo Freire,José Marcos Sasaki,I. Guedes,J. Mendes Filho,F. E. A. Melo,E. B. Araujo,José Antonio Eiras +7 more
Journal ArticleDOI
Chiral phonons in the pseudogap phase of cuprates
Gael Grissonnanche,S. Thériault,Adrien Gourgout,Marie-Eve Boulanger,Etienne Lefrancois,A. Ataei,Francis Laliberte,Maxime Dion,J.-S. Zhou,S. Pyon,T. Takayama,T. Takayama,H. Takagi,Nicolas Doiron-Leyraud,Louis Taillefer,Louis Taillefer +15 more
TL;DR: In this paper, it was shown that the thermal Hall conductivity of cuprates is roughly isotropic, that is, for heat transport parallel and normal to the CuO2 planes, it is nearly the same.
Journal ArticleDOI
Giant thermal Hall effect in multiferroics.
TL;DR: The results show that the thermal Hall effect in multiferroic materials can be an effective probe for strong lattice-spin interactions and provide a new tool for magnetic control of thermal currents.
Journal ArticleDOI
Phonon Thermal Hall Effect in Strontium Titanate.
TL;DR: A study of κ_{xy} in quantum paraelectric SrTiO_{3), which is a nonmagnetic insulator, is presented and it is found that its peak value exceeds what has been reported in any other insulators, including those in which the signal has been qualified as "giant."
Journal ArticleDOI
Symmetry-Protected Ideal Type-II Weyl Phonons in CdTe.
TL;DR: It is shown by first-principles calculations and symmetry analysis that ideal type-II Weyl phonons are present in zinc-blende cadmium telluride, a well-known II-VI semiconductor, exhibiting the robustness of protected phonon features.
References
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Journal ArticleDOI
Introduction to Solid State Physics
TL;DR: Kind's new edition is to be welcomed as mentioned in this paper, with a revised format and attractive illustrations, and with the inclusion of much new material this book has become one of the best sources for undergraduate teaching, likely to give the student a wish to dig deeper into the solid state.
Solid State Communications 112 (1999) 383–386
A. G. Souza Filho,Paulo Freire,José Marcos Sasaki,I. Guedes,J. Mendes Filho,F. E. A. Melo,E. B. Araujo,José Antonio Eiras +7 more
Book ChapterDOI
Chapter 17 Crystal fields
TL;DR: In this article, the authors discuss the retarding effects that deal with the various physical effects caused by the crystal field splitting of the rare earth (RE) systems and discuss the influence of impurities in lattices of crystal-field split ions.