Magnetic structure and properties of Cu3(OH)4SO4 made of triple chains of spins s=1/2
| Autor: | M. Guillot, Serge Vilminot, Marc Drillon, Dariusz Swierczynski, Mireille Richard-Plouet, F. Bourée-Vigneron, Gilles André |
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| Rok vydání: | 2003 |
| Předmět: |
Magnetic structure
Chemistry Magnetism Neutron diffraction Crystal structure Condensed Matter Physics Magnetic susceptibility Electronic Optical and Magnetic Materials Inorganic Chemistry Crystallography Nuclear magnetic resonance X-ray crystallography Materials Chemistry Ceramics and Composites Antiferromagnetism Orthorhombic crystal system Physical and Theoretical Chemistry |
| Zdroj: | Journal of Solid State Chemistry. 170:255-264 |
| ISSN: | 0022-4596 |
| DOI: | 10.1016/s0022-4596(02)00081-6 |
| Popis: | Cu3(OH)4SO4, obtained by hydrothermal synthesis from copper sulfate and soda in aqueous medium, is isostructural with the corresponding antlerite mineral, orthorhombic, space group Pnma (62), with a=8.289(1) b=6.079(1) and c=12.057(1) A ˚ , V=607.5(2) A ˚ 3 , Z=4. Its crystalline structure has been refined from X-ray single crystal and powder neutron diffraction data at room temperature. It consists of copper (II) triple chains, running in the b-axis direction and connected to each other by sulfate groups. The magnetic structure, solved from powder neutron diffraction data at 1.4 K below the transition at 5 K evidenced by susceptibility and specific measurements, reveals that, inside a triple chain, the magnetic moments of the copper ions (mB=0.88(5) at 1.4 K) belonging to outer chains are oriented along the c-axis of the nuclear cell, with ferromagnetic order inside a chain and antiferromagnetic order between the two outer chains. No long-range magnetic order is obtained along the central chain with an idle spin behavior. r 2002 Elsevier Science (USA). All rights reserved. |
| Databáze: | OpenAIRE |
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