Searched for: author:"Streib, S.D."
(1 - 5 of 5)
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R├╝ckriegel, Andreas (author), Streib, S.D. (author), Bauer, G.E. (author), Duine, Rembert A. (author)
We develop a microscopic theory of spin-lattice interactions in magnetic insulators, separating rigid-body rotations and the internal angular momentum, or spin, of the phonons, while conserving the total angular momentum. In the low-energy limit, the microscopic couplings are mapped onto experimentally accessible magnetoelastic constants. We...
journal article 2020
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Streib, S.D. (author), Vidal-Silva, Nicolas (author), Shen, Ka (author), Bauer, G.E. (author)
We address the theory of magnon-phonon interactions and compute the corresponding quasiparticle and transport lifetimes in magnetic insulators, with a focus on yttrium iron garnet at intermediate temperatures from anisotropy- and exchange-mediated magnon-phonon interactions, the latter being derived from the volume dependence of the Curie...
journal article 2019
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Streib, S.D. (author), Keshtgar, Hedyeh (author), Bauer, G.E. (author)
We theoretically investigate pumping of phonons by the dynamics of a magnetic film into a nonmagnetic contact. The enhanced damping due to the loss of energy and angular momentum shows interference patterns as a function of the resonance frequency and magnetic film thickness that cannot be described by viscous ("Gilbert") damping. The phonon...
journal article 2018
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Keshtgar, H. (author), Streib, S.D. (author), Kamra, Akashdeep (author), Blanter, Y.M. (author), Bauer, G.E. (author)
We address the theory of the coupled lattice and magnetization dynamics of freely suspended single-domain nanoparticles. Magnetic anisotropy generates low-frequency satellite peaks in the microwave absorption spectrum and a blueshift of the ferromagnetic resonance (FMR) frequency. The low-frequency resonances are very sharp with maxima...
journal article 2017
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Krieg, Jan (author), Strassel, Dominik (author), Streib, S.D. (author), Eggert, Sebastian (author), Kopietz, Peter (author)
We use the functional renormalization group (FRG) to derive analytical expressions for thermodynamic observables (density, pressure, entropy, and compressibility) as well as for single-particle properties (wave-function renormalization and effective mass) of interacting bosons in two dimensions as a function of temperature T and chemical...
journal article 2017
Searched for: author:"Streib, S.D."
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