Heat capacity, magnetic and lattice dynamic properties of TbMn(1-x)FexO(3)

• Type: Article in International Conference Proceedings Book
• Date: 2015

Authors

Mihalik, M (Author) Other; Mihalik, M (Author) Other; Fitta, M (Author) Other; Vavra, M (Author) Other; Zentkova, M (Author) Other; Vilarinho, R (Author) Other; Mota, A (Author) Other; Tavares, P (Author) Other; Agostinho Moreira, JA (Author) FCUP; Almeida, A (Author) FCUP

Conference proceedings International

Title: INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS 2014 (SCES2014)

Final page: 012119

International Conference on Strongly Correlated Electron Systems (SCES)

Grenoble, FRANCE, JUL 07-14, 2014

Indexing

ISI Proceedings

ISI Web of Knowledge - 6 Citations

Scopus - 6 Citations

Scientific classification

CORDIS: Physical sciences > Physics

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-00A-9K2

DOI: 10.1088/1742-6596/592/1/012119

Abstract (EN): The effect of substitution of Fe3+ ions by Mn3+ ions on crystal structure, lattice dynamic, heat capacity and magnetic properties in TbMn(1-x)FexO(3) ceramics has been studied. X-ray powder diffraction and Raman spectroscopy revealed that lattice distortion can be mainly attributed to Jahn-Teller distortion and tilting of octahedrons for samples with x < 0.4; for higher Fe concentration, the distortions are dominated by the octahedra tilting with less contribution of the Jahn-Teller effect. The anomalies in heat capacity of parent compounds (TbMnO3 and TbFeO3), which are associated with magnetic transitions, are smeared out by ion substitution. Magnetization measurements indicate that magnetic ordering persists in whole concentration range. The butterfly-type magnetic hysteresis loops suggest that the magnetic ground state of the whole system is complex and thence interesting for next experimental and theoretical studies.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6