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Quantum Griffiths phase inside the ferromagnetic phase of Ni1-xVx

Wang, Ruizhe; Gebretsadik, Adane; Ubaid-Kassis, Sara; Schroeder, Almut; Vojta, Thomas; Baker, Peter J.; Pratt, Francis L.; Blundell, Stephen J.; Lancaster, Tom; Franke, Isabel; Möller, Johannes S.; Page, Katharine

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Authors

Ruizhe Wang

Adane Gebretsadik

Sara Ubaid-Kassis

Almut Schroeder

Thomas Vojta

Peter J. Baker

Francis L. Pratt

Stephen J. Blundell

Isabel Franke

Johannes S. Möller

Katharine Page



Abstract

We study by means of bulk and local probes the d-metal alloy Ni1-xVx close to the quantum critical concentration, x_c \approx 11.6\%, where the ferromagnetic transition temperature vanishes. The magnetization-field curve in the ferromagnetic phase takes an anomalous power-law form with a nonuniversal exponent that is strongly x-dependent and mirrors the behavior in the paramagnetic phase. Muon spin rotation experiments demonstrate inhomogeneous magnetic order and indicate the presence of dynamic fluctuating magnetic clusters. These results provide strong evidence for a quantum Griffiths phase on the ferromagnetic side of the quantum phase transition.

Citation

Wang, R., Gebretsadik, A., Ubaid-Kassis, S., Schroeder, A., Vojta, T., Baker, P. J., …Page, K. (2017). Quantum Griffiths phase inside the ferromagnetic phase of Ni1-xVx. Physical Review Letters, 118(26), Article 267202. https://doi.org/10.1103/physrevlett.118.267202

Journal Article Type Article
Acceptance Date May 30, 2017
Online Publication Date Jun 28, 2017
Publication Date Jun 28, 2017
Deposit Date Jun 6, 2017
Publicly Available Date Mar 29, 2024
Journal Physical Review Letters
Print ISSN 0031-9007
Electronic ISSN 1079-7114
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 118
Issue 26
Article Number 267202
DOI https://doi.org/10.1103/physrevlett.118.267202

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Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review Letters 118, 267202 © (2017) by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.






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