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Просмотр по автору "Bunkov Y."

Просмотр по автору "Bunkov Y."

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  • 3He experiments: Insights into cosmology and atomic physics 
    Bunkov Y. (2010)
    Superfluid 3He, since its discovery by Osheroff, Richardson and Lee in 1972, has become one of the main systems for experimental studies of quantum field theories. This is due to the very rich order parameter of the quantum ...
  • Atomic type magnon Bose-Einstein condensation in antiferromagnet 
    Alakshin E.; Bunkov Y.; Gazizulin R.; Klochkov A.; Kuzmin V.; Safin T.; Tagirov M. (2012)
    The Spin Supercurrent and Bose-Einstein condensation of magnons, similar to an atomic BEC, was observed in 1984 in superfluid 3He-B The same phenomena should exist in solid magnetic systems. We describe here the first ...
  • Bose-Einstein condensation in antiferromagnets at low temperatures 
    Alakshin E.; Bunkov Y.; Gazizulin R.; Isaenko L.; Klochkov A.; Safin T.; Safiullin K.; Tagirov M.; Zhurkov S. (2014)
    © Published under licence by IOP Publishing Ltd. The Bose-Einstein condensation (BEC) was predicted by Einstein in 1925 and this effect is characterized by the formation of a collective quantum state, when macroscopic ...
  • Discovery of the classical Bose-Einstein condensation of magnons in solid antiferromagnets 
    Bunkov Y.; Alakshin E.; Gazizulin R.; Klochkov A.; Kuzmin V.; Safin T.; Tagirov M. (2011)
    Results of experiments in which the Bose-Einstein condensate of magnons is created in the CsMnF 3 easy-plane antiferromagnet in a system with coupled nuclear-electron precession with dynamical frequency shift are presented. ...
  • Double magnetic resonance in MnCO3 
    Bunkov Y.; Klochkov A.; Safin T.; Safiullin K.; Tagirov M. (2015)
    © Kazan Federal University (KFU). Results of experiments on MnCO3 investigations by double magnetic resonance are presented. Additional mode of oscillation has been observed in a created Bose-Einstein condensation of magnons ...
  • Evolution of a neutron-initiated micro big bang in superfluid He 3 -B 
    Bunkov Y.; Golov A.; L'Vov V.; Pomyalov A.; Procaccia I. (2014)
    A nuclear capture reaction of a single neutron by ultracold superfluid He3 results in a rapid overheating followed by the expansion and subsequent cooling of the hot subregion, in a certain analogy with the big bang of the ...
  • Experimental Setup for Observation the Bose-Einstein Condensation of Magnons in Solid Antiferromagnets CsMnF3 and MnCO3 
    Alakshin E.; Bunkov Y.; Gazizulin R.; Klochkov A.; Kuzmin V.; Rakhmatullin R.; Sabitova A.; Safin T.; Tagirov M. (2013)
    The Bose-Einstein condensation of magnons was observed in 1984 in superfluid 3He-B. The same phenomena should exist in solid magnetic systems. We describe here a partly digital experimental setup for studying solid ...
  • High-T c spin superfluidity in antiferromagnets 
    Bunkov Y.; Alakshin E.; Gazizulin R.; Klochkov A.; Kuzmin V.; L'Vov V.; Tagirov M. (2012)
    We report the observation of the unusual behavior of induction decay signals in antiferromagnetic monocrystals with Suhl-Nakamura interactions. The signals show the formation of the Bose-Einstein condensation (BEC) of ...
  • Long-lived free induction decay signal in CsMnF<inf>3</inf> single crystal 
    Alakshin E.; Bunkov Y.; Gazizulin R.; Gazizulina A.; Isaenko L.; Klochkov A.; Safin T.; Safiullin K.; Tagirov M.; Vedenyapin V.; Zhurkov S. (2014)
    Elementary excitations in antiferromagnets are magnons, and these quasiparticles with integer spin are governed by Bose statistics. In certain conditions their density can be controlled by applied radiofrequency pulse ...
  • Magnon BEC in antiferromagnets with Suhl-Nakamura interaction 
    Tagirov M.; Alakshin E.; Bunkov Y.; Gazizulin R.; Gazizulina A.; Isaenko L.; Klochkov A.; Safin T.; Safiullin K.; Zhurkov S. (2014)
    From atomic physics one knows the phenomenon of Bose-Einstein condensation (BEC), where a macroscopic ensemble of particles occupy coherently a single state. Similar phenomena were observed for different types of quasiparticles ...
  • Magnon BEC Versus Atomic BEC 
    Bunkov Y. (2016)
    © 2016 Springer Science+Business Media New YorkThe Bose–Einstein condensation (BEC) corresponds to the formation of a collective quantum state in which macroscopic number of particles is governed by a single wave function. ...
  • Magnon BEC Versus Atomic BEC 
    Bunkov Y. (2016)
    © 2016, Springer Science+Business Media New York.The Bose–Einstein condensation (BEC) corresponds to the formation of a collective quantum state in which macroscopic number of particles is governed by a single wave function. ...
  • Magnon Bose-Einstein condensation and spin superfluidity 
    Bunkov Y.; Volovik G. (2010)
    Bose-Einstein condensation (BEC) is a quantum phenomenon of formation of a collective quantum state in which a macroscopic number of particles occupy the lowest energy state and thus is governed by a single wavefunction. ...
  • Magnon Bose-Einstein condensation at inhomogeneous conditions 
    Bunkov Y.; Tagirov M. (2013)
    The Spin Supercurrent and Bose-Einstein condensation of magnons, similar to an atomic BEC, was discovered in superfluid 3He-B, which is characterized by absolute purity. Later this phenomena were observed in a few magnetically ...
  • Magnon bose-einstein condensation in CsMnF 3 and MnCO 3 
    Alakshin E.; Bunkov Y.; Gazizulin R.; Klochkov A.; Kuzmin V.; Nizamutdinov A.; Safin T.; Tagirov M. (2011)
    The Spin Supercurrent and Bose-Einstein condensation of magnons, similar to an atomic BEC, was observed in 1984 in superfluid 3He-B. The same phenomena should exist in solid magnetic systems. We describe here the first ...
  • Magnonics and Supermagnonics 
    Bunkov Y. (2019)
    © 2019 World Scientific Publishing Company. The magnetic community continues to discuss the possibility of observing the magnetic superfluidity, despite the fact that it has been discovered a long time ago. It was observed ...
  • Nonlinear FMR spectra in yttrium iron garnet 
    Bunkov Y.; Vetoshko P.; Motygullin I.; Safin T.; Tagirov M.; Tukmakova N. (2015)
    © Kazan Federal University (KFU). Results of demagnetizing effect studies in yttrium iron garnet Y3Fe5O12 thin films are reported. Experiments were performed on X-Band of electron paramagnetic resonance spectrometer at ...
  • Nonresonant Excitation of a Magnon Bose–Einstein Condensate in MnCO <inf>3</inf> 
    Bunkov Y.; Klochkov A.; Safin T.; Safiullin K.; Tagirov M. (2019)
    © 2019, Pleiades Publishing, Inc. Coupled nuclear–electron precession in MnCO 3 under nonresonant excitation is studied. The experimental results clearly confirm the formation of a magnon Bose–Einstein condensate. The ...
  • Nuclear magnetic relaxation induced by the relaxation of electron spins 
    Borich M.; Bunkov Y.; Kurkin M.; Tankeyev A. (2017)
    © 2017, Pleiades Publishing, Inc.A physical mechanism responsible for the relaxation of nuclear spins coupled by the hyperfine interaction to relaxed electron spins in materials with spin ordering is proposed. The rate of ...
  • Observation of majorana quasiparticles’ edge states in superfluid3he 
    Bunkov Y.; Gazizulin R. (2014)
    © Springer-Verlag Wien 2014. We suggest in this article the nuclear magnetic resonance (NMR) method of observation and investigations of Majorana fermions at the edge of Topological Insulator, superfluid 3He-B. The Majorana ...

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