Investigation of spin-phonon coupling and local magnetic properties in magnetoelectric Fe2TeO6

Spin-phonon coupling originated from spin-lattice correlation depends upon different exchange interactions in transition metal oxides containing 3d magnetic ions. Spin-lattice coupling can influence the coupling mechanism in magnetoelectric material. To understand the spin-lattice correlation in inv...

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Bibliographic Details
Published in:arXiv.org 2021-07
Main Authors: Pal, P, Badola, Shalini, Biswas, P K, Das, Ranjana R, Saha, Surajit, Kaushik, S D, Vishwakarma, P N, Singh, A K
Format: Article
Language:English
Subjects:
Antiferromagnetism
Coupling
Heat exchange
Lattice vibration
Long range order
Magnetic anomalies
Magnetic properties
Magnetic transitions
Phonons
Spin dynamics
Spin resonance
Transition metal oxides
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Summary:Spin-phonon coupling originated from spin-lattice correlation depends upon different exchange interactions in transition metal oxides containing 3d magnetic ions. Spin-lattice coupling can influence the coupling mechanism in magnetoelectric material. To understand the spin-lattice correlation in inverse trirutile Fe2TeO6 (FTO), magnetic properties and phonon spectra are studied. Signature of short-range magnetic correlation induced by 5/2-5/2 dimeric interaction and magnetic anomaly at 150 K is perceived apart from the familiar sharp transition (TN~210K) corresponding to long-range order by magnetization and heat capacity measurement. The magnetic transitions and the spin dynamics are further locally probed by muon spin resonance ({\mu}SR) measurement in both zero fields (ZF) and longitudinal field (LF) mode. Three dynamically distinct temperature regimes; (i) T >TN, (ii) TN>T>150 K, and (iii) T
ISSN:2331-8422
DOI:10.48550/arxiv.2107.06269