Literature DB >> 16486890

Dynamics of composite haldane spin chains in IPA-CuCl3.

T Masuda1, A Zheludev, H Manaka, L-P Regnault, J-H Chung, Y Qiu.   

Abstract

Magnetic excitations in the quasi-one-dimensional antiferromagnet IPA-CuCl3 are studied by cold neutron inelastic scattering. Strongly dispersive gap excitations are observed. Contrary to previously proposed models, the system is best described as an asymmetric quantum spin ladder. The observed spectrum is interpreted in terms of composite Haldane spin chains. The key difference from actual S=1 chains is a sharp cutoff of the single-magnon spectrum at a certain critical wave vector.

Entities:  

Year:  2006        PMID： 16486890     DOI： 10.1103/PhysRevLett.96.047210

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  2 in total

1.  Evidence for pressure induced unconventional quantum criticality in the coupled spin ladder antiferromagnet C9H18N2CuBr4.

Authors:  Tao Hong; Tao Ying; Qing Huang; Sachith E Dissanayake; Yiming Qiu; Mark M Turnbull; Andrey A Podlesnyak; Yan Wu; Huibo Cao; Yaohua Liu; Izuru Umehara; Jun Gouchi; Yoshiya Uwatoko; Masaaki Matsuda; David A Tennant; Gia-Wei Chern; Kai P Schmidt; Stefan Wessel
Journal:  Nat Commun       Date:  2022-06-02       Impact factor: 17.694

2.  Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet.

Authors:  Tao Hong; Y Qiu; M Matsumoto; D A Tennant; K Coester; K P Schmidt; F F Awwadi; M M Turnbull; H Agrawal; A L Chernyshev
Journal:  Nat Commun       Date:  2017-05-05       Impact factor: 14.919
  2 in total

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