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Bose–Einstein condensation of quasi-equilibrium magnons at room temperature under pumping

Author

Listed:
  • S. O. Demokritov

    (Institute for Applied Physics, University of Münster)

  • V. E. Demidov

    (Institute for Applied Physics, University of Münster)

  • O. Dzyapko

    (Institute for Applied Physics, University of Münster)

  • G. A. Melkov

    (National Taras Schevchenko University of Kiev)

  • A. A. Serga

    (Fachbereich Physik, Technische Universität Kaiserslautern)

  • B. Hillebrands

    (Fachbereich Physik, Technische Universität Kaiserslautern)

  • A. N. Slavin

    (Oakland University)

Abstract

In from the cold Bose–Einstein condensation (BEC), a form of matter first postulated in 1924, has famously been demonstrated in dilute atomic gases at ultra-low temperatures. Much effort is now being devoted to exploring solid-state systems in which BEC can occur. In theory semiconductor microcavities, where photons are confined and coupled to electronic excitations leading to the creation of polaritons, could allow BEC at standard cryogenic temperatures. Kasprzak et al. now present experiments in which polaritons are excited in such a microcavity. Above a critical polariton density, spontaneous onset of a macroscopic quantum phase occurs, indicating a solid-state BEC. BEC should also be possible at higher temperatures if coupling of light with solid excitations is sufficiently strong. Demokritov et al. have achieved just that, BEC at room temperature in a gas of magnons, which are a type of magnetic excitation.

Suggested Citation

  • S. O. Demokritov & V. E. Demidov & O. Dzyapko & G. A. Melkov & A. A. Serga & B. Hillebrands & A. N. Slavin, 2006. "Bose–Einstein condensation of quasi-equilibrium magnons at room temperature under pumping," Nature, Nature, vol. 443(7110), pages 430-433, September.
    • Handle: RePEc:nat:nature:v:443:y:2006:i:7110:d:10.1038_nature05117
    DOI: 10.1038/nature05117
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    Cited by:

    1. Jianyu Zhang & Mingfeng Chen & Jilei Chen & Kei Yamamoto & Hanchen Wang & Mohammad Hamdi & Yuanwei Sun & Kai Wagner & Wenqing He & Yu Zhang & Ji Ma & Peng Gao & Xiufeng Han & Dapeng Yu & Patrick Malet, 2021. "Long decay length of magnon-polarons in BiFeO3/La0.67Sr0.33MnO3 heterostructures," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    2. Korbinian Baumgaertl & Dirk Grundler, 2023. "Reversal of nanomagnets by propagating magnons in ferrimagnetic yttrium iron garnet enabling nonvolatile magnon memory," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. B. Divinskiy & H. Merbouche & V. E. Demidov & K. O. Nikolaev & L. Soumah & D. Gouéré & R. Lebrun & V. Cros & Jamal Ben Youssef & P. Bortolotti & A. Anane & S. O. Demokritov, 2021. "Evidence for spin current driven Bose-Einstein condensation of magnons," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    4. Ellen Fogh & Mithilesh Nayak & Oleksandr Prokhnenko & Maciej Bartkowiak & Koji Munakata & Jian-Rui Soh & Alexandra A. Turrini & Mohamed E. Zayed & Ekaterina Pomjakushina & Hiroshi Kageyama & Hiroyuki , 2024. "Field-induced bound-state condensation and spin-nematic phase in SrCu2(BO3)2 revealed by neutron scattering up to 25.9 T," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    5. Yoshito Watanabe & Atsushi Miyake & Masaki Gen & Yuta Mizukami & Kenichiro Hashimoto & Takasada Shibauchi & Akihiko Ikeda & Masashi Tokunaga & Takashi Kurumaji & Yusuke Tokunaga & Taka-hisa Arima, 2023. "Double dome structure of the Bose–Einstein condensation in diluted S = 3/2 quantum magnets," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    6. Hongjun Xu & Ke Jia & Yuan Huang & Fanqi Meng & Qinghua Zhang & Yu Zhang & Chen Cheng & Guibin Lan & Jing Dong & Jinwu Wei & Jiafeng Feng & Congli He & Zhe Yuan & Mingliang Zhu & Wenqing He & Caihua W, 2023. "Electrical detection of spin pumping in van der Waals ferromagnetic Cr2Ge2Te6 with low magnetic damping," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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