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1 PublicationUltrasound propagation in bond frustrated HgCr2S4 spinel in magnetic fields
Felea, V.; Prodan, L.; Stefanet, E.; Cong, P. T.; Zherlitsyn, S.; Tsurkan, V.
Abstract
Ultrasound and magnetization studies of bond frustrated spinel HgCr2S4 are performed as a function of temperature in static magnetic fields. Beside the anharmonic effect, the sound velocity shows pronounced anomaly at the antiferromagnetic (AFM) transition at TN = 23 K with an additional significant increase of the order of 0.5 % indicating a strong spin-lattice coupling. External magnetic fields enhance the ferromagnetic (FM) correlations and shift the anomalies to lower temperatures concomitantly with the reduction of the Néel temperature. The constructed H–T Phase diagram beside the long-range AFM states reveals the state with induced FM order and regimes with short-range AFM and FM correlations as well.
Involved research facilities
- High Magnetic Field Laboratory (HLD)
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Low Temperature Physics 43(2017), 559-563
DOI: 10.1063/1.4985206
ISSN: 1063-777X
Cited 2 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-25826