Solid Solution VxFe1-x[TCNE]2·zCH2Cl2 Room-Temperature Magnets
| Autor: | A. J. Epstein, Michael Bonner, Konstantin Pokhodnya, Elaine B. Vickers, Joel S. Miller |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
Chemistry Orders of magnitude (temperature) General Chemical Engineering Analytical chemistry General Chemistry Polymer Tetracyanoethylene Amorphous solid chemistry.chemical_compound Nuclear magnetic resonance Elemental analysis Magnet Materials Chemistry Anisotropy Solid solution |
| Zdroj: | Chemistry of Materials. 16:3218-3223 |
| ISSN: | 1520-5002 0897-4756 |
| DOI: | 10.1021/cm049368b |
| Popis: | A family of amorphous, solid-solution magnets of VxFe1-x[TCNE]2·zCH2Cl2 (TCNE = tetracyanoethylene; 0 ≤ x ≤ 1) composition has been characterized by IR spectrometry, elemental analysis, and magnetic measurements (ac and dc susceptibility). Substitution of FeII for VII in V[TCNE]2·zCH2Cl2 does not significantly alter the Tc for x ≥ 0.3, which exceeds room temperature; however, Hcr is enhanced by over 2 orders of magnitude, indicating a large increase of random anisotropy. Hence, the magnetic properties of the room-temperature V[TCNE]2·zCH2Cl2 magnet can be finely tuned via a synthetic chemistry methodology, making this material more amenable to future technologies. |
| Databáze: | OpenAIRE |
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