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Quantum fluctuations in magnetic nanostructures

 a,  a,  b
a Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, ul. Mokhovaya 11, kor. 7, Moscow, 125009, Russian Federation
b Institute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, Chernogolovka, Moscow Region, Chernogolovka, 142432, Russian Federation

The problem of quantum fluctuations in magnetic nanostructures is discussed by considering a linear chain of a finite number of atoms with the electron spins of neighboring atoms interacting via exchange as in Heisenberg's theory of ferromagnetism. Electromagnetic magnetic dipole radiation from a spin flip wave is calculated. It is shown that radiation energy flux calculations including electromagnetic field quantum fluctuations give much larger values than for the averaged field. The radiation decay due to spin interaction to the quantized electromagnetic field is estimated.

Text can be downloaded in Russian. English translation is available here.
Keywords: magnetic nanostructure, electron spin, exchange interaction, spin wave, quantum fluctuations, electromagnetic field, Heitler approach
PACS: 75.30.Ds, 75.76.+j, 75.78.−n (all)
DOI: 10.3367/UFNe.2018.07.038405
URL: https://ufn.ru/en/articles/2019/1/g/
Citation: Barabanenkov Yu N, Nikitov S A, Barabanenkov M Yu "Quantum fluctuations in magnetic nanostructures" Phys. Usp. 62 82–91 (2019)
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Received: 17th, October 2017, revised: 29th, June 2018, 17th, July 2018

Оригинал: Барабаненков Ю Н, Никитов С А, Барабаненков М Ю «Квантовые флуктуации в магнитных наноструктурах» УФН 189 85–94 (2019); DOI: 10.3367/UFNr.2018.07.038405

References (29) ↓ Similar articles (20)

  1. Stamps R L et al J. Phys. D 47 333001 (2014)
  2. Blügel S Spintronics. From GMR To Quantum Information. Lecture Notes Of The 40th Spring School (Eds S Blügel et al.) (Jülich: Verlag, 2009)
  3. Ẑutić I, Fuhrer M Nature Phys. 1 85 (2005)
  4. Morris D H et al Int. J. High Speed Electron. Syst. 21 1250005 (2012)
  5. Pulizzi F Nature Mater. 11 367 (2012)
  6. Kruglyak V V et al Phys. Rev. Lett. 104 027201 (2010)
  7. Ding J, Adeyeye A O Appl. Phys. Lett. 101 103117 (2012)
  8. Jorzick J et al Phys. Rev. Lett. 88 047204 (2002)
  9. Gubbiotti G et al J. Phys. Condens. Matter 16 7709 (2004)
  10. Kruglyak V V, Demokritov S O, Grundler D J. Phys. D 43 264001 (2010)
  11. Ciubotaru F et al Phys. Rev. B 88 134406 (2013)
  12. Krawczyk M, Puszkarski H Acta Phys. Polon. A 93 805 (1998)
  13. Nikitov S A, Tailhades Ph, Tsai C S J. Magn. Magn. Mater. 236 320 (2001)
  14. Lisenkov I, Kalyabin D, Nikitov S Appl. Phys. Lett. 103 202402 (2013)
  15. Barabanenkov Yu et al Phys. Rev. B 91 214419 (2015)
  16. Barabanenkov Yu et al Phys. Rev. B 94 184409 (2016)
  17. Vilkov E A i dr Radiotekhnika Elektronika 61 844 (2016); Vilkov E A et al J. Commun. Technol. Electron. 61 995 (2016)
  18. Landau L, Lifshitz E Phys. Z. Sowjetunion 8 153 (1935); Per. na russk. yaz., Landau L D, Lifshits E MLandau L D Sobranie Trudov T. 1 (M.: Nauka, 1969) p. 128
  19. Aharoni A Introduction To The Theory Of Ferromagnetism (Oxford: Oxford Univ. Press, 2000)
  20. Sun J et al Nature Mater. 13 1007 (2014)
  21. Heisenberg W Z. Phys. 49 619 (1928)
  22. Akhiezer A I, Peletminskii S V Metody Statisticheskoi Fiziki (M.: Nauka, 1977); Per. na angl. yaz., Akhiezer A I, Peletminskii S V Methods Of Statistical Physics (Oxford: Pergamon Press, 1981)
  23. Landau L D, Lifshits E M Elektrodinamika Sploshnykh Sred (M.: Nauka, 1982); Per. na angl. yaz., Landau L D, Lifshitz E M Electrodynamics Of Continuous Media (Oxford: Pergamon Press, 1960)
  24. Landau L D, Lifshits E M Teoriya Polya (M.: Fizmatgiz, 1960); Per. na angl. yaz., Landau L D, Lifshitz E M The Classical Theory Of Fields (Oxford: Pergamon Press, 1962)
  25. Gaudin M La Fonction D’onde De Bethe (Paris: Masson, 1983); Per. na angl. yaz., Gaudin M The Bethe Wavefunction (Cambridge: Cambridge Univ. Press, 2014); Per. na russk. yaz., Goden M Volnovaya Funktsiya Bete (M.: Mir, 1987)
  26. Heitler W The Quantum Theory Of Radiation (Oxford: Clarendon Press, 1954)
  27. Madelung O Festkörpertheorie Vol. 1, 2 (Berlin: Springer-Verlag, 1972); Per. na angl. yaz., Madelung O Introduction To Solid-State Theory (Berlin: Springer, 1996); Per. na russk. yaz., Madelung O Teoriya Tverdogo Tela (M.: Nauka, 1980)
  28. Bethe H Quantenmechanik Der Ein- Und Zwei- Electronenprobleme (Handbuch der Physik) Vol. 24 (Berlin: J. Springer, 1933)
  29. Kittel C Introduction To Solid State Physics (New York: Wiley, 1953)

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