COEXISTENCE OF SUPERPARAMAGNETIC AND FERROMAGNETIC COMPONENTS IN (CuGa)1-xFexSe2-x SOLID SOLUTIONS WITH x=0.1, 1/3 and 1/2(COEXISTENCIA DE COMPONENTES FERROMAGNÉTICA Y SUPERPARAMAGNÉTICA EN SOLUCIONES SÓLIDAS (CUGA)1-XFEXSE2-X CON X=0.1, 1/3 Y 1/2)
COEXISTENCE OF SUPERPARAMAGNETIC AND FERROMAGNETIC COMPONENTS IN (CuGa)1-xFexSe2-x SOLID SOLUTIONS WITH x=0.1, 1/3 and 1/2(COEXISTENCIA DE COMPONENTES FERROMAGNÉTICA Y SUPERPARAMAGNÉTICA EN SOLUCIONES SÓLIDAS (CUGA)1-XFEXSE2-X CON X=0.1, 1/3 Y 1/2)
The magnetic behavior of (CuGa)1-xFexSe2-x solid solutions with compositions x=0.1, 1/3 and 1/2 has been investigated using SQUID techniques. DC magnetic susceptibility was measured in the temperature range 2 < T < 300K using Zero Field Cooling (ZFC) – Field Cooling (FC) protocol. It has been observ...
| Journal Title: | Revista Latinoamericana de Metalurgia y Materiales |
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| First author: | Pedro Grima Gallardo |
| Other Authors: | Luis Nieves; Miguel Soto; Miguel Quintero; Humberto Cabrera; Inti Zumeta-Dubé; Alejandro Rodriguez; Jennifer Aitken; Dibya Rai |
| Palabras clave: | |
| Language: | Spanish |
| Get full text: | http://www.rlmm.org/ojs/index.php/rlmm/article/view/871 |
| Resource type: | Journal Article |
| Source: | Revista Latinoamericana de Metalurgia y Materiales; Vol 38, No 2 (Year 2018). |
| Publisher: | Universidad Simón Bolívar (Venezuela) |
| Categories: | Physical/Engineering Sciences --> Materials Science, Ceramics Physical/Engineering Sciences --> Materials Science, Composites |
| Abstract: | The magnetic behavior of (CuGa)1-xFexSe2-x solid solutions with compositions x=0.1, 1/3 and 1/2 has been investigated using SQUID techniques. DC magnetic susceptibility was measured in the temperature range 2 < T < 300K using Zero Field Cooling (ZFC) – Field Cooling (FC) protocol. It has been observed that the experimental curves can be analyzed as the sum of two magnetic components, one superparamagnetic and the other one ferromagnetic. The ferromagnetic component persist up to temperatures higher than room temperature making this report the first observation of room temperature ferromagnetism in AIBIIICVI2 compounds doped (or alloyed)with transition metals. El comportamiento magnético de las soluciones solidas (CuGa)1-xFexSe2-x con composiciones x=0.1, 1/3 y 1/2 fue investigado por medio de la técnica de SQUID. Las susceptibilidades DC fueron medidas en el rango de temperatura 2 < T < 300K usando el protocolo Enfriamiento a Campo Zero (ECZ) – Enfriamiento con Campo (EC). Se observó que las curvas experimentales podían ser analizadas como la suma de dos componentes magnéticas, una superparamagnética y otra ferromagnética. La componente ferromagnética persiste a temperaturas por arriba de la temperatura ambiente siendo este reporte la primera observación de ferromagnetismo a temperatura ambiente en compuestos AIBIIICVI2 dopados (o aleados) con metales de transición. |
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