Tunable space-time crystal in room-temperature magnetodielectrics

Alexander J. E. Kreil; Halyna Yu Musiienko-Shmarova; Sebastian Eggert; Alexander A. Serga; Burkard Hillebrands; Dmytro A. Bozhko; Anna Pomyalov; Victor S. L'vov

doi:10.1103/PhysRevB.100.020406

Tunable space-time crystal in room-temperature magnetodielectrics

Alexander J. E. Kreil^*, Halyna Yu Musiienko-Shmarova, Sebastian Eggert, Alexander A. Serga, Burkard Hillebrands, Dmytro A. Bozhko, Anna Pomyalov, Victor S. L'vov

^*Corresponding author for this work

Department of Chemical and Biological Physics

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

We report the experimental realization of a space-time crystal with tunable periodicity in time and space in a magnon Bose-Einstein condensate (BEC), formed in a room-temperature yttrium iron garnet (YIG) film by a microwave space-homogeneous magnetic field. The magnon BEC is prepared to have a well-defined frequency and nonzero wave vector. We demonstrate how the crystalline "density" as well as the time and space textures of the resulting crystal may be tuned by varying the experimental parameters: External static magnetic field, temperature, thickness of the YIG film, and power of the microwave field. The proposed space-time crystals provide an additional dimension for exploring dynamical phases of matter and can serve as a model nonlinear Floquet system, that brings in touch the rich fields of classical nonlinear waves, magnonics, and periodically driven systems.

Original language	English
Article number	020406
Number of pages	6
Journal	Physical Review B
Volume	100
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.100.020406
Publication status	Published - 24 Jul 2019

Bibliographical note

Financial support by the European Research Council within the Advanced Grant No. 694709 “SuperMagnonics”, by Deutsche Forschungsgemeinschaft (DFG) within the Transregional Collaborative Research Centers SFB/TR49 “Condensed Matter Systems with Variable Many-Body Interaction” (project A7) and SFB/TRR173 “Spin+X – Spin in its collective environment” (project A10) as well as by the DFG Project No. INST 248/178-1 is gratefully acknowledged. D.A.B. acknowledges support from the Alexander von Humboldt Foundation.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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https://arxiv.org/abs/1811.05801Licence: Other

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title = "Tunable space-time crystal in room-temperature magnetodielectrics",

abstract = "We report the experimental realization of a space-time crystal with tunable periodicity in time and space in a magnon Bose-Einstein condensate (BEC), formed in a room-temperature yttrium iron garnet (YIG) film by a microwave space-homogeneous magnetic field. The magnon BEC is prepared to have a well-defined frequency and nonzero wave vector. We demonstrate how the crystalline {"}density{"} as well as the time and space textures of the resulting crystal may be tuned by varying the experimental parameters: External static magnetic field, temperature, thickness of the YIG film, and power of the microwave field. The proposed space-time crystals provide an additional dimension for exploring dynamical phases of matter and can serve as a model nonlinear Floquet system, that brings in touch the rich fields of classical nonlinear waves, magnonics, and periodically driven systems.",

author = "Kreil, {Alexander J. E.} and Musiienko-Shmarova, {Halyna Yu} and Sebastian Eggert and Serga, {Alexander A.} and Burkard Hillebrands and Bozhko, {Dmytro A.} and Anna Pomyalov and L'vov, {Victor S.}",

note = "Financial support by the European Research Council within the Advanced Grant No. 694709 “SuperMagnonics”, by Deutsche Forschungsgemeinschaft (DFG) within the Transregional Collaborative Research Centers SFB/TR49 “Condensed Matter Systems with Variable Many-Body Interaction” (project A7) and SFB/TRR173 “Spin+X – Spin in its collective environment” (project A10) as well as by the DFG Project No. INST 248/178-1 is gratefully acknowledged. D.A.B. acknowledges support from the Alexander von Humboldt Foundation.",

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doi = "10.1103/PhysRevB.100.020406",

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AU - Kreil, Alexander J. E.

AU - Musiienko-Shmarova, Halyna Yu

AU - Eggert, Sebastian

AU - Serga, Alexander A.

AU - Hillebrands, Burkard

AU - Bozhko, Dmytro A.

AU - Pomyalov, Anna

AU - L'vov, Victor S.

N1 - Financial support by the European Research Council within the Advanced Grant No. 694709 “SuperMagnonics”, by Deutsche Forschungsgemeinschaft (DFG) within the Transregional Collaborative Research Centers SFB/TR49 “Condensed Matter Systems with Variable Many-Body Interaction” (project A7) and SFB/TRR173 “Spin+X – Spin in its collective environment” (project A10) as well as by the DFG Project No. INST 248/178-1 is gratefully acknowledged. D.A.B. acknowledges support from the Alexander von Humboldt Foundation.

PY - 2019/7/24

Y1 - 2019/7/24

N2 - We report the experimental realization of a space-time crystal with tunable periodicity in time and space in a magnon Bose-Einstein condensate (BEC), formed in a room-temperature yttrium iron garnet (YIG) film by a microwave space-homogeneous magnetic field. The magnon BEC is prepared to have a well-defined frequency and nonzero wave vector. We demonstrate how the crystalline "density" as well as the time and space textures of the resulting crystal may be tuned by varying the experimental parameters: External static magnetic field, temperature, thickness of the YIG film, and power of the microwave field. The proposed space-time crystals provide an additional dimension for exploring dynamical phases of matter and can serve as a model nonlinear Floquet system, that brings in touch the rich fields of classical nonlinear waves, magnonics, and periodically driven systems.

AB - We report the experimental realization of a space-time crystal with tunable periodicity in time and space in a magnon Bose-Einstein condensate (BEC), formed in a room-temperature yttrium iron garnet (YIG) film by a microwave space-homogeneous magnetic field. The magnon BEC is prepared to have a well-defined frequency and nonzero wave vector. We demonstrate how the crystalline "density" as well as the time and space textures of the resulting crystal may be tuned by varying the experimental parameters: External static magnetic field, temperature, thickness of the YIG film, and power of the microwave field. The proposed space-time crystals provide an additional dimension for exploring dynamical phases of matter and can serve as a model nonlinear Floquet system, that brings in touch the rich fields of classical nonlinear waves, magnonics, and periodically driven systems.

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Tunable space-time crystal in room-temperature magnetodielectrics

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