Magnetic and Mossbauer studies of CaRu(1-)xM(x)O(3) (M = Ti and Fe)
Апстракт
CaRuO3 is a perovskite with an orthorhombic distortion and shows the characteristics of spin-glass behavior below T-C=87 K. Magnetic studies of polycrystalline CaRu1-xTixO3 (0 LT x LT 0.1) reveal that a ferromagnetic transition at T-C=34 K appears regardless of the nonmagnetic Ti concentration. On the other hand, magnetic and Mossbauer effect studies show that T-C of CaRu1-xFexO3 (up to x=0.15) is similar to that of pure CaRuO3: however, the Fe induces a ferromagnetic structure. Charge compensation, which is assumed to be present upon Fe3+ substitution, induces the appearance of low-spin Ru5+ ions, which reduce the paramagnetic moment. Huge magnetic hysteresis loops are observed at 5 K, with coercive fields up to 30 kOe. A second magnetic transition around 250 K is observed for Fe concentrations of x=0.25 and 0.35, which is probably caused by Fe-rich clusters. This behavior is consistent with inhomogeneous ferromagnetism found in other perovskite systems.
Извор:
Physical Review B: Condensed Matter and Materials Physics, 2002, 66, 5
DOI: 10.1103/PhysRevB.66.054418
ISSN: 2469-9950; 2469-9969
WoS: 000177873000083
Scopus: 2-s2.0-85038929667
Колекције
Институција/група
VinčaTY - JOUR AU - Felner, I AU - Asaf, U AU - Nowik, I AU - Bradarić, Ivica PY - 2002 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2545 AB - CaRuO3 is a perovskite with an orthorhombic distortion and shows the characteristics of spin-glass behavior below T-C=87 K. Magnetic studies of polycrystalline CaRu1-xTixO3 (0 LT x LT 0.1) reveal that a ferromagnetic transition at T-C=34 K appears regardless of the nonmagnetic Ti concentration. On the other hand, magnetic and Mossbauer effect studies show that T-C of CaRu1-xFexO3 (up to x=0.15) is similar to that of pure CaRuO3: however, the Fe induces a ferromagnetic structure. Charge compensation, which is assumed to be present upon Fe3+ substitution, induces the appearance of low-spin Ru5+ ions, which reduce the paramagnetic moment. Huge magnetic hysteresis loops are observed at 5 K, with coercive fields up to 30 kOe. A second magnetic transition around 250 K is observed for Fe concentrations of x=0.25 and 0.35, which is probably caused by Fe-rich clusters. This behavior is consistent with inhomogeneous ferromagnetism found in other perovskite systems. T2 - Physical Review B: Condensed Matter and Materials Physics T1 - Magnetic and Mossbauer studies of CaRu(1-)xM(x)O(3) (M = Ti and Fe) VL - 66 IS - 5 DO - 10.1103/PhysRevB.66.054418 ER -
@article{ author = "Felner, I and Asaf, U and Nowik, I and Bradarić, Ivica", year = "2002", abstract = "CaRuO3 is a perovskite with an orthorhombic distortion and shows the characteristics of spin-glass behavior below T-C=87 K. Magnetic studies of polycrystalline CaRu1-xTixO3 (0 LT x LT 0.1) reveal that a ferromagnetic transition at T-C=34 K appears regardless of the nonmagnetic Ti concentration. On the other hand, magnetic and Mossbauer effect studies show that T-C of CaRu1-xFexO3 (up to x=0.15) is similar to that of pure CaRuO3: however, the Fe induces a ferromagnetic structure. Charge compensation, which is assumed to be present upon Fe3+ substitution, induces the appearance of low-spin Ru5+ ions, which reduce the paramagnetic moment. Huge magnetic hysteresis loops are observed at 5 K, with coercive fields up to 30 kOe. A second magnetic transition around 250 K is observed for Fe concentrations of x=0.25 and 0.35, which is probably caused by Fe-rich clusters. This behavior is consistent with inhomogeneous ferromagnetism found in other perovskite systems.", journal = "Physical Review B: Condensed Matter and Materials Physics", title = "Magnetic and Mossbauer studies of CaRu(1-)xM(x)O(3) (M = Ti and Fe)", volume = "66", number = "5", doi = "10.1103/PhysRevB.66.054418" }
Felner, I., Asaf, U., Nowik, I.,& Bradarić, I.. (2002). Magnetic and Mossbauer studies of CaRu(1-)xM(x)O(3) (M = Ti and Fe). in Physical Review B: Condensed Matter and Materials Physics, 66(5). https://doi.org/10.1103/PhysRevB.66.054418
Felner I, Asaf U, Nowik I, Bradarić I. Magnetic and Mossbauer studies of CaRu(1-)xM(x)O(3) (M = Ti and Fe). in Physical Review B: Condensed Matter and Materials Physics. 2002;66(5). doi:10.1103/PhysRevB.66.054418 .
Felner, I, Asaf, U, Nowik, I, Bradarić, Ivica, "Magnetic and Mossbauer studies of CaRu(1-)xM(x)O(3) (M = Ti and Fe)" in Physical Review B: Condensed Matter and Materials Physics, 66, no. 5 (2002), https://doi.org/10.1103/PhysRevB.66.054418 . .