Magnetic Field-Induced Instability of the Cooperative Paramagnetic State in ZnxCo4-x(OD)6Cl2

Published

May 29, 2012

Author(s)

S. E. Dissanayake, C. Chan, S. Ji, J. Lee, Yiming Qiu, K. C. Rule, B. Lake, Mark Green, M. Hagihala, X. G. Zheng, T. K. Ng, S.-H. Lee

Abstract

Using elastic and inelastic neutron scattering techniques with and without application of an external magnetic field H, the magnetic ground states of Zn_xCo₄-x(OD)₆Cl₂ (x=0,1) were studied. Our results show that for x=0, the ground state is a magnetic long ¿range ordered (LRO) state where each tetrahedron forms an ¿umbrella¿-type structure. On the other hand, for x=1, no static ordering was observed down to 1.5K, which resembles the behavior found in the isostructural quantum system Zn_xCu_4-x(OD)₆Cl₂. When H field is applied, however the x=1 system develops the same LRO state as x = 0. This indicates that the x = 1 disordered state is in the vicinity of the x= 0 ordered state.

Citation

Physical Review B

Volume

85

Issue

17

Pub Type

Journals

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Keywords

kagome lattice, neutron scattering

Citation

Dissanayake, S. , Chan, C. , Ji, S. , Lee, J. , Qiu, Y. , Rule, K. , Lake, B. , Green, M. , Hagihala, M. , Zheng, X. , Ng, T. and Lee, S. (2012), Magnetic Field-Induced Instability of the Cooperative Paramagnetic State in Zn_xCo_4-x(OD)₆Cl₂, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=911242 (Accessed April 25, 2024)