Study of the critical-fields and the thermal broadening in polycrystalline Ag2FeGeSe4 semiconducting compound
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| Formato: | Artículo científico |
| Lenguaje: | es |
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Sociedad Mexicana de Física A.C.
2017
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| _version_ | 1876433843408338944 |
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| author | J. Marquina |
| author_facet | J. Marquina |
| contents | Study of the critical-fields and the thermal broadening in polycrystalline Ag2FeGeSe4 semiconducting compound J. Marquina N. Sierralta M. Quintero C. Rincón M. Morocoima E. Quintero Física, Astronomía y Matemáticas antiferromagnetic magnetization curves Magnetic semiconductors We show that a phenomenological model based on sublattice magnetization describes the temperature and field dependent magnetism in the Ag 2 FeGeSe 4 semiconductor compound with wurtz-stannite-type structure. The model successfully finds the antiferromagnetic (AF), spin flop (SF) and paramagnetic (P) phases for all magnetization curves below the N ́ eel temperature. The Langevin classical function instead of the Brillouin one is used in the analysis of the phase transitions to take into account the randomness of the magnetic moments given the polycrystalline nature of the samples. The critical-fields and the thermal broadening of the phase transitions were also found. The model was tested in the Ba 3 Cu 3 In 4 O 12 and Ba 3 Cu 3 Sc 4 O 12 compounds, and was successfully identified AF, SF and P phases in these materials. 2017 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57051630007 es http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.63 |
| format | Artículo científico |
| id | redalyc_57051630007 |
| institution | Redalyc |
| language | es |
| publishDate | 2017 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Study of the critical-fields and the thermal broadening in polycrystalline Ag2FeGeSe4 semiconducting compound J. Marquina Física, Astronomía y Matemáticas antiferromagnetic magnetization curves Magnetic semiconductors Study of the critical-fields and the thermal broadening in polycrystalline Ag2FeGeSe4 semiconducting compound J. Marquina N. Sierralta M. Quintero C. Rincón M. Morocoima E. Quintero Física, Astronomía y Matemáticas antiferromagnetic magnetization curves Magnetic semiconductors We show that a phenomenological model based on sublattice magnetization describes the temperature and field dependent magnetism in the Ag 2 FeGeSe 4 semiconductor compound with wurtz-stannite-type structure. The model successfully finds the antiferromagnetic (AF), spin flop (SF) and paramagnetic (P) phases for all magnetization curves below the N ́ eel temperature. The Langevin classical function instead of the Brillouin one is used in the analysis of the phase transitions to take into account the randomness of the magnetic moments given the polycrystalline nature of the samples. The critical-fields and the thermal broadening of the phase transitions were also found. The model was tested in the Ba 3 Cu 3 In 4 O 12 and Ba 3 Cu 3 Sc 4 O 12 compounds, and was successfully identified AF, SF and P phases in these materials. 2017 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57051630007 es http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.5 Vol.63 |
| title | Study of the critical-fields and the thermal broadening in polycrystalline Ag2FeGeSe4 semiconducting compound |
| topic | Física, Astronomía y Matemáticas antiferromagnetic magnetization curves Magnetic semiconductors |
| url | https://www.redalyc.org/articulo.oa?id=57051630007 |