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Unveiling new quantum phases in the Shastry-Sutherland compound SrCu2(BO3)2 up to the saturation magnetic field.
Nomura, T; Corboz, P; Miyata, A; Zherlitsyn, S; Ishii, Y; Kohama, Y; Matsuda, Y H; Ikeda, A; Zhong, C; Kageyama, H; Mila, F.
Afiliación
  • Nomura T; Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, Japan. tnomura@mail.dendai.ac.jp.
  • Corboz P; Tokyo Denki University, Adachi, Tokyo, Japan. tnomura@mail.dendai.ac.jp.
  • Miyata A; Institute for Theoretical Physics and Delta Institute for Theoretical Physics, University of Amsterdam, XH, Amsterdam, The Netherlands. P.R.Corboz@uva.nl.
  • Zherlitsyn S; Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.
  • Ishii Y; Hochfeld-Magnetlabor Dresden (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.
  • Kohama Y; Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, Japan.
  • Matsuda YH; Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, Japan.
  • Ikeda A; Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, Japan.
  • Zhong C; Department of Engineering Science, University of Electro-Communications, Chofu, Tokyo, Japan.
  • Kageyama H; Graduate School of Engineering, Kyoto University, Nishikyouku, Kyoto, Japan.
  • Mila F; Department of Applied Chemistry, Ritsumeikan University, Kusatsu, Shiga, Japan.
Nat Commun ; 14(1): 3769, 2023 Jun 24.
Article en En | MEDLINE | ID: mdl-37355682
Under magnetic fields, quantum magnets often undergo exotic phase transitions with various kinds of order. The discovery of a sequence of fractional magnetization plateaus in the Shastry-Sutherland compound SrCu2(BO3)2 has played a central role in the high-field research on quantum materials, but so far this system could only be probed up to half the saturation value of the magnetization. Here, we report the first experimental and theoretical investigation of this compound up to the saturation magnetic field of 140 T and beyond. Using ultrasound and magnetostriction techniques combined with extensive tensor-network calculations (iPEPS), several spin-supersolid phases are revealed between the 1/2 plateau and saturation (1/1 plateau). Quite remarkably, the sound velocity of the 1/2 plateau exhibits a drastic decrease of -50%, related to the tetragonal-to-orthorhombic instability of the checkerboard-type magnon crystal. The unveiled nature of this paradigmatic quantum system is a new milestone for exploring exotic quantum states of matter emerging in extreme conditions.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Campos Magnéticos / Imanes Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2023 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Campos Magnéticos / Imanes Idioma: En Revista: Nat Commun Asunto de la revista: BIOLOGIA / CIENCIA Año: 2023 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido