Magnetic Characteristics of CuCr2S4Nanospinels Obtained by Mechanical Alloying and Heat Treatment
| Autor: | J. Panek, E. Maciazek, A. Gudwański, Tadeusz Groń, B. Sawicki, Z. Stokłosa, Ewa Malicka, Małgorzata Karolus |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Condensed matter physics Chalcogenide Alloy 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Magnetic susceptibility Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Ferromagnetism Electrical resistivity and conductivity Seebeck coefficient 0103 physical sciences engineering Nanometre Crystallite Electrical and Electronic Engineering 0210 nano-technology |
| Zdroj: | IEEE Transactions on Magnetics. 53:1-5 |
| ISSN: | 1941-0069 0018-9464 |
| DOI: | 10.1109/tmag.2017.2712764 |
| Popis: | Chalcogenide bulk spinels with general formula CuCr2X4 (X = S, Se, and Te) are ferromagnetic and p-type metallic materials with the thermoelectric figure of merit of 0.15. They can be used to dope or alloy with related semiconducting spinels. Therefore, it is expected that their nanosized crystallites display also unique properties and new potential applications. This paper presents the results of dc and ac magnetic measurements, including the higher harmonics of ac magnetic susceptibility as well as electrical conductivity and thermoelectric power of the CuCr2S4 nanospinels. These studies showed that decreasing the size of crystallites to nanometer scale leads to a dramatic change in their physical properties. |
| Databáze: | OpenAIRE |
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