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This article is cited in 12 scientific papers (total in 13 papers)
CONDENSED MATTER
Bose–Einstein condensation and spin superfluidity of magnons in a perpendicularly magnetized yttrium iron garnet film
P. M. Vetoshkoab, G. A. Knyazeva, A. N. Kuzmicheva, A. A. Kholinb, V. I. Belotelovbca, Yu. M. Bunkovab a Russian Quantum Center, Skolkovo, Moscow region, 143025 Russia
b Vernadsky Crimean Federal University, Simferopol, 295007 Russia
c Moscow State University, Moscow, 119992 Russia
Abstract:
The formation of a Bose–Einstein condensate of magnons in a perpendicularly magnetized iron yttrium garnet film under radio-frequency pumping in a stripline has been studied experimentally. The characteristics of the nonlinear magnetic resonance and spatial distribution of the Bose–Einstein condensate of magnons in the gradient of a magnetic field have been analyzed. In these experiments, the system of bosonic magnons behaves in much the same way as the Bose–Einstein condensate of magnons in antiferromagnetic superfluid $^3$He-B, which was previously studied in detail. The Bose–Einstein condensate of magnons forms a coherently precessing state having the properties of magnon superfluidity. Its stability is determined by the repulsion potential between excited magnons, which compensates the inhomogeneity of the magnetic field.
Received: 22.07.2020 Revised: 31.07.2020 Accepted: 01.08.2020
Citation:
P. M. Vetoshko, G. A. Knyazev, A. N. Kuzmichev, A. A. Kholin, V. I. Belotelov, Yu. M. Bunkov, “Bose–Einstein condensation and spin superfluidity of magnons in a perpendicularly magnetized yttrium iron garnet film”, Pis'ma v Zh. Èksper. Teoret. Fiz., 112:5 (2020), 313–318; JETP Letters, 112:5 (2020), 299–304
Linking options:
https://www.mathnet.ru/eng/jetpl6249 https://www.mathnet.ru/eng/jetpl/v112/i5/p313
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Abstract page: | 159 | Full-text PDF : | 25 | References: | 18 | First page: | 10 |
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