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Intrinsic magnetic order in Cs2AgF4 detected by muon-spin relaxation

journal contribution
posted on 2023-06-07, 21:39 authored by T Lancaster, S J Blundell, P J Baker, W Hayes, S R Giblin, S E McLain, F L Pratt, Z Salman, E A Jacobs, John TurnerJohn Turner, T Barnes
We present the results of a muon-spin relaxation study of the high-Tc analog material Cs2AgF4. We find unambiguous evidence for magnetic order, intrinsic to the material, below TC=13.95(3) K. The ratio of interplane to intraplane coupling is estimated to be |J[prime]/J|=1.9102, while fits of the temperature dependence of the order parameter reveal a critical exponent beta=0.292(3), implying an intermediate character between pure two- and three-dimensional magnetism in the critical regime. Above TC we observe a signal characteristic of dipolar interactions due to linear F-+-F bonds, allowing the muon stopping sites in this compound to be characterized.

History

Publication status

  • Published

Journal

Physical Review B

ISSN

1098-0121

Issue

2

Volume

75

Page range

220408

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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