Long-range ferromagnetism in nickel-based hybrid structure with semiconductor behavior
| Autor: | Prashanta K. Mukharjee, Arkamita Bandyopadhyay, Swapan K. Pati, Sukhendu Mandal, Prabu Mani, Ramesh Nath |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Spins Condensed matter physics 010405 organic chemistry Band gap business.industry Metals and Alloys chemistry.chemical_element General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Nickel Dipole Semiconductor Ferromagnetism chemistry Superexchange Materials Chemistry Ceramics and Composites Density of states business |
| Zdroj: | Chemical Communications. 55:5211-5214 |
| ISSN: | 1364-548X 1359-7345 |
| DOI: | 10.1039/c8cc09840a |
| Popis: | Here we report a new three-dimensional nickel-based hybrid structure [Ni3(BTB)2(BPE)4(H2O)2]·2DMF·2H2O, 1 [where BTB = 1,3,5-tris(4-carboxyphenyl)benzene and BPE = 1,2-bis((4-pyridyl)ethane)], which exhibits long-range ferromagnetism and semiconductor behavior. The dipolar interaction between the magnetic spins is suggested to explain the development of long-range ferromagnetic ordering, where the superexchange interaction can be unwanted due to the large distance between the magnetic spins. Optical band gap and resistance vs. temperature measurements reveal the semiconductor nature of this compound. The density of states calculations shed light towards the origin of the low band gap value. |
| Databáze: | OpenAIRE |
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