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Field-tuned quantum effects in a triangular-lattice Ising magnet.
Qin, Yayuan; Shen, Yao; Liu, Changle; Wo, Hongliang; Gao, Yonghao; Feng, Yu; Zhang, Xiaowen; Ding, Gaofeng; Gu, Yiqing; Wang, Qisi; Shen, Shoudong; Walker, Helen C; Bewley, Robert; Xu, Jianhui; Boehm, Martin; Steffens, Paul; Ohira-Kawamura, Seiko; Murai, Naoki; Schneidewind, Astrid; Tong, Xin; Chen, Gang; Zhao, Jun.
Afiliação
  • Qin Y; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  • Shen Y; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Liu C; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  • Wo H; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China; Shanghai Qizhi Institute, Shanghai 200232, China.
  • Gao Y; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  • Feng Y; Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; Spallation Neutron Source Science Center, Dongguan 523803, China; Materials and Life Science Division, J-PARC Center, Tokai, Ibaraki 319-1195, Japan.
  • Zhang X; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  • Ding G; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China; Shanghai Qizhi Institute, Shanghai 200232, China.
  • Gu Y; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China; Shanghai Qizhi Institute, Shanghai 200232, China.
  • Wang Q; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China; Physik-Institut, Universität Zürich, Zürich CH-8057, Switzerland.
  • Shen S; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
  • Walker HC; ISIS Facility, Rutherford Appleton Laboratory, STFC, Chilton, Didcot, Oxon OX11 0QX, UK.
  • Bewley R; ISIS Facility, Rutherford Appleton Laboratory, STFC, Chilton, Didcot, Oxon OX11 0QX, UK.
  • Xu J; Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin D-14109, Germany.
  • Boehm M; Institut Laue-Langevin, Grenoble 9, Cedex 38042, France.
  • Steffens P; Institut Laue-Langevin, Grenoble 9, Cedex 38042, France.
  • Ohira-Kawamura S; Materials and Life Science Division, J-PARC Center, Tokai, Ibaraki 319-1195, Japan.
  • Murai N; Materials and Life Science Division, J-PARC Center, Tokai, Ibaraki 319-1195, Japan.
  • Schneidewind A; Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, Garching 85748, Germany.
  • Tong X; Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China; Spallation Neutron Source Science Center, Dongguan 523803, China.
  • Chen G; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China; Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Hong Kong, China; Collaborative Innovation Center of Ad
  • Zhao J; State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China; Shanghai Qizhi Institute, Shanghai 200232, China; Institute of Nanoelectronics and Quantum Computing, Fudan University, Shanghai 200433, China; Institute of Nanoelectronics and Quantum Comput
Sci Bull (Beijing) ; 67(1): 38-44, 2022 Jan.
Article em En | MEDLINE | ID: mdl-36545957
ABSTRACT
We report thermodynamic and neutron scattering measurements of the triangular-lattice quantum Ising magnet TmMgGaO4 in longitudinal magnetic fields. Our experiments reveal a quasi-plateau state induced by quantum fluctuations. This state exhibits an unconventional non-monotonic field and temperature dependence of the magnetic order and excitation gap. In the high field regime where the quantum fluctuations are largely suppressed, we observed a disordered state with coherent magnon-like excitations despite the suppression of the spin excitation intensity. Through detailed semi-classical calculations, we are able to understand these behaviors quantitatively from the subtle competition between quantum fluctuations and frustrated Ising interactions.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Bull (Beijing) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Bull (Beijing) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China