Nitrogen concentration induced spin disorder in ε-iron nitrides
| Autor: | Rui-Bin Zhao, Denglu Hou, Li-Yong Yuan, Jun-Jie Shen, Congmian Zhen, Hao Pan, Wenkun Tuo, Guoke Li, Li Ma, Liyun Jia, Qisong Sun |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Magnetic structure Magnetoresistance Condensed matter physics Exchange interaction chemistry.chemical_element 02 engineering and technology Nitride 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Nitrogen Electronic Optical and Magnetic Materials Magnetization chemistry Electrical resistivity and conductivity 0103 physical sciences Curie temperature 0210 nano-technology |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 463:7-12 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2018.05.017 |
| Popis: | The magnetic and transport properties of e-Fe3−xN (0 ≤ x ≤ 1) films were systematically characterized to identify the correlation among the nitrogen concentration x, magnetic structure, and electrical transport properties. It was found that increasing the nitrogen concentration x of e-Fe3−xN not only resulted in a successive decrease in magnetization and Curie temperature, but also led to the contribution of magnetic scattering to the resistivity and magnetoresistance. All these experimental phenomena can be attributed to the distinctive exchange interaction in e-Fe3−xN, which depends on the concentration and distribution of nitrogen atoms and causes the emergence of localized spin disorder. We believe this work would provide a new insight into the relationship between the magnetic and transport properties of iron nitrides. |
| Databáze: | OpenAIRE |
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