2014 |
Barahona, P; Galdámez, A; Lopez-Vergara, F; Manriquez, V; Pena, O Crystal Structure and Magnetic Properties of Titanium-Based Cuti2-Xmxs4 and Cucr2-Xtixse4 Chalcospinels Artículo de revista Journal of Solid State Chemistry, 212 , pp. 114-120, 2014, ISSN: 0022-4596. Resumen | Enlaces | BibTeX | Etiquetas: chalcospinel, copper crystal cucr2se4, cuti2s4, electrical-properties, geometry, lithium, magnetic polyhedra, properties, spinel structure, thiospinels, transport-properties @article{RN203, title = {Crystal Structure and Magnetic Properties of Titanium-Based Cuti2-Xmxs4 and Cucr2-Xtixse4 Chalcospinels}, author = { P. Barahona and A. Gald\'{a}mez and F. Lopez-Vergara and V. Manriquez and O. Pena}, url = {/brokenurl#<Go to ISI>://WOS:000333071400017}, doi = {10.1016/j.jssc.2014.01.017}, issn = {0022-4596}, year = {2014}, date = {2014-01-01}, journal = {Journal of Solid State Chemistry}, volume = {212}, pages = {114-120}, publisher = {2014 Elsevier Inc.}, abstract = {CuTi2-xMxS4 (M=Fe, Mn, Co; x=0.3, 0.5) and CuCr2-xTixSe4 (x=03, 0.5, 0.7) chalcospinels were synthesized by conventional solid-state reactions. Their crystal structures were determined by single-crystal X-ray diffraction. All of the phases crystallized in cubic spinel-type structures (space group, Fd (3) over barm). For all of the chalcospinel compounds, the edge-length distortion parameter (ELD) indicated that the most distorted polyhedron was Q[(Ti,M)(3)Cu], which displayed an similar to 8% distortion from an ideal tetrahedron structure (Q=S or Se)., The Mn-based thiospinel CuMn0.3Ti1.7S4 is paramagnetic, whereas the Fe-based thiospinels (CuTi2-xFexS4; x=0.3 and 0.7) are strongly antiferromagnetic due to their spin-glass states. The magnetic susceptibility measurements indicated ferromagnetic behavior for the selenospinels (CuCr2-xTixSe4; x=0.3, 0.5 and 0.7).}, keywords = {chalcospinel, copper crystal cucr2se4, cuti2s4, electrical-properties, geometry, lithium, magnetic polyhedra, properties, spinel structure, thiospinels, transport-properties}, pubstate = {published}, tppubtype = {article} } CuTi2-xMxS4 (M=Fe, Mn, Co; x=0.3, 0.5) and CuCr2-xTixSe4 (x=03, 0.5, 0.7) chalcospinels were synthesized by conventional solid-state reactions. Their crystal structures were determined by single-crystal X-ray diffraction. All of the phases crystallized in cubic spinel-type structures (space group, Fd (3) over barm). For all of the chalcospinel compounds, the edge-length distortion parameter (ELD) indicated that the most distorted polyhedron was Q[(Ti,M)(3)Cu], which displayed an similar to 8% distortion from an ideal tetrahedron structure (Q=S or Se)., The Mn-based thiospinel CuMn0.3Ti1.7S4 is paramagnetic, whereas the Fe-based thiospinels (CuTi2-xFexS4; x=0.3 and 0.7) are strongly antiferromagnetic due to their spin-glass states. The magnetic susceptibility measurements indicated ferromagnetic behavior for the selenospinels (CuCr2-xTixSe4; x=0.3, 0.5 and 0.7). |
2014 |
Crystal Structure and Magnetic Properties of Titanium-Based Cuti2-Xmxs4 and Cucr2-Xtixse4 Chalcospinels Artículo de revista Journal of Solid State Chemistry, 212 , pp. 114-120, 2014, ISSN: 0022-4596. |