Higgs amplitude mode in a two-dimensional quantum antiferromagnet near the quantum critical point

Tao Hong,Masashige Matsumoto,Yiming Qiu,Wangchun Chen,Thomas R. Gentile,Shannon Watson,Firas F. Awwadi,Mark M. Turnbull,Sachith E. Dissanayake,Harish Agrawal,Rasmus Toft-Petersen,Bastian Klemke,Kris Coester,Kai P. Schmidt,David A. Tennant

Nature Physics（2017）

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摘要

The presence of a Higgs amplitude mode is revealed in a two-dimensional spin-half quantum antiferromagnet, C 9 H 18 N 2 CuBr 4 by means of neutron scattering.

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关键词

Magnetic properties and materials,Phase transitions and critical phenomena,Physics,general,Theoretical,Mathematical and Computational Physics,Classical and Continuum Physics,Atomic,Molecular,Optical and Plasma Physics,Condensed Matter Physics,Complex Systems

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