Open AccessJournal Article
Long-lived induction signal in superfluid /sup 3/He-B
Reads0
Chats0
TLDR
The frequency of the long-lived induction signal in /sup 3/He-B depends on the time, and the rate of change of this frequency increases with increasing field gradient as discussed by the authors.Abstract:
The frequency of the ''long-lived'' induction signal in /sup 3/He-B depends on the time, and the rate of change of this frequency increases with increasing field gradient. Experiments confirm Fomin's theoretical explanation of this phenomenon, according to which a /sup 3/He-B sample in which a uniform magnetization precession is excited breaks up into two phases. In one, the magnetization is parallel to the field and does not precess; in the other, the magnetization precesses with a deflection angle of approximately 104/sup 0/.read more
Citations
More filters
Journal ArticleDOI
Observation of a Time Quasicrystal and Its Transition to a Superfluid Time Crystal.
TL;DR: Experimental realization of a quantum time quasicrystal and its transformation to a quantumTime crystal, and Bose-Einstein condensation of magnons, associated with coherent spin precession, created in a flexible trap in superfluid He-B.
Journal ArticleDOI
Supercurrent in a room-temperature Bose-Einstein magnon condensate
Dmytro A. Bozhko,Alexander A. Serga,P. Clausen,Vitaliy I. Vasyuchka,Frank Heussner,Gennadii A. Melkov,Anna Pomyalov,Victor S. L'vov,Burkard Hillebrands +8 more
TL;DR: In this article, it was shown that a magnon supercurrent can be excited in a Bose-Einstein magnon condensate at room temperature, and that superconductivity and superfluidity can also be observed in the condensates.
Journal ArticleDOI
Bose-Einstein Condensation of Magnons in Superfluid 3 He
TL;DR: The possibility of Bose-Einstein condensation of excitations has been discussed for a long time as discussed by the authors, and several different states of coherent precession has been observed in 3He-B: homogeneously precessing domain (HPD), persistent signal formed by Q-balls at very low temperatures, coherent precess with fractional magnetization; and a mode of the coherent preection in compressed aerogel.
Journal ArticleDOI
High-Tc spin superfluidity in antiferromagnets.
Yu. M. Bunkov,E. M. Alakshin,R. R. Gazizulin,A. V. Klochkov,V. V. Kuzmin,Victor S. L'vov,M. S. Tagirov +6 more
TL;DR: The signals show the formation of the Bose-Einstein condensation (BEC) of magnons and the existence of spin supercurrent, in complete analogy with the spin superfluidity in the superfluid (3)He and the atomic BEC of quantum gases.
Journal ArticleDOI
Bogoliubov waves and distant transport of magnon condensate at room temperature
Dmytro A. Bozhko,Alexander J. E. Kreil,Halyna Yu. Musiienko-Shmarova,Alexander A. Serga,Anna Pomyalov,Victor S. L'vov,Burkard Hillebrands +6 more
TL;DR: In this article, a macroscopic collective motion of a Bose-Einstein condensate (BEC) is associated with phenomena such as superconductivity and superfluidity, often generalised by the term supercurrent.