Magnetic phase diagram of the linear quantum ferro-antiferromagnet Cs\(_{2}\)Cu\(_{2}\)Mo\(_{3}\)O\(_{12}\)

A single-crystal sample of the frustrated quasi one-dimensional quantum magnet Cs\(_{2}\)Cu\(_{2}\)Mo\(_{3}\)O\(_{12}\) is investigated by magnetic and thermodynamic measurements.A combination of specific heat and magnetic torque measurements maps out the entire \(H\)-\(T\) phase diagram for three o...

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Bibliographic Details
Published in:arXiv.org 2020-06
Main Authors: Flavián, D, Hayashida, S, Huberich, L, Blosser, D, K Yu Povarov, Yan, Z, Gvasaliya, S, Zheludev, A
Format: Article
Language:English
Subjects:
Antiferromagnetism
Copper
Crystal structure
Magnons
Molybdenum
Phase diagrams
Single crystals
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Summary:A single-crystal sample of the frustrated quasi one-dimensional quantum magnet Cs\(_{2}\)Cu\(_{2}\)Mo\(_{3}\)O\(_{12}\) is investigated by magnetic and thermodynamic measurements.A combination of specific heat and magnetic torque measurements maps out the entire \(H\)-\(T\) phase diagram for three orientations.Remarkably, a new phase emerges below the saturation field, irrespective of the crystal orientation. It is suggested that the presaturation phase represents spin-nematic order or other multi-magnon condensate. The phase diagrams within the long-range ordered dome are qualitatively different for each geometry. In particular, multiple transitions are identified in the field along the chain direction.
ISSN:2331-8422
DOI:10.48550/arxiv.2004.10636