Structural, Raman Spectroscopy, and Magnetic Ordering in New Delafossite-Type Oxide CuCr1−x Tix O2 (0 ≤ x ≤ 0.1)

T. Elkhouni 1 M. Amami 1, 2 Pierre Strobel 3 A. Ben Salah 1
1 Laboratoire des Sciences des Matériaux et d'Environnement, Sfax
2 ISSBAT - Unité de Recherche de Chimie des Matériaux
3 MRS - Matériaux, Rayonnements, Structure
NEEL - Institut Néel
Abstract : We investigated in this paper a new mixture +3/+2 B cations delafossites by the doping at Cr3+ sites in CuCrO2 by nonmagnetic cation Ti2+. Ceramics of CuCr1−x Tix O2 (0 ≤ x ≤ 0.1) were prepared via solid state synthesis techniques in a controlled atmosphere of O2. The compound crystallized into the 3R delafossite phase with hexagonal structure. The slightly different size in B cations induced a slightly variation in unit cell parameters. We mod- ulate the spin chirality by the effect of spin dilution for Ti2+ on the structural and magnetic properties of delafos- site CuCrO2 having a S = 3/2 antiferromagnetic triangular lattice (ATL).
keyword : delafossite Raman spectroscopy Magnetism
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Article dans une revue
Journal of Superconductivity and Novel Magnetism, Springer Verlag, 2013, 26, pp.2795-2802. 〈10.1007/s10948-013-2256-7〉
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https://hal.inria.fr/hal-00984216
Contributeur : Pierre Strobel <>
Soumis le : lundi 28 avril 2014 - 08:56:56
Dernière modification le : jeudi 11 janvier 2018 - 06:27:45

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T. Elkhouni, M. Amami, Pierre Strobel, A. Ben Salah. Structural, Raman Spectroscopy, and Magnetic Ordering in New Delafossite-Type Oxide CuCr1−x Tix O2 (0 ≤ x ≤ 0.1). Journal of Superconductivity and Novel Magnetism, Springer Verlag, 2013, 26, pp.2795-2802. 〈10.1007/s10948-013-2256-7〉. 〈hal-00984216〉

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