Temperature dependent structural studies on the spin correlated system A2FeCoO6 (A= Sm, Eu, Dy and Ho) using synchrotron radiation
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In this paper, temperature dependent structural studies carried out on the spin-correlated system A2FeCoO6 (A= Sm, Eu, Dy and Ho) or AFCO (A = Sm,E, D and H), using synchrotron radiation is presented.Abstract:
The temperature dependent structural studies carried out on the spin-correlated system A2FeCoO6 (A= Sm, Eu, Dy and Ho) or AFCO (A= Sm, E, D and H), using synchrotron radiation is presented. Owing to the large absorption cross-sections of the rare earths; Eu, Sm and Dy for neutrons, synchrotron radiation is one of the best available candidates for probing the system. The perovskite phase formation is inferred from laboratory XRD with Cu Kα source. The temperature dependent synchrotron X-ray diffraction (SXRD) experiments show the coexistence of monoclinic P21/n and orthorhombic Pbnm phases in Ho and Dy, while Eu and Sm are formed in single phase Pbnm. The temperature dependent DC magnetization measurements infer the presence of many interesting features such as thermal hysteresis, magnetic irreversibility, spin re-orientation, re-entrant magnetization and negative magnetization.read more
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Spin reorientation and disordered rare earth magnetism in Ho2FeCoO6.
G. R. Haripriya,Harikrishnan S. Nair,R. Pradheesh,Sudhindra Rayaprol,Vasudeva Siruguri,Durgesh Singh,R. Venkatesh,V. Ganesan,K. Sethupathi,V. Sankaranarayanan +9 more
TL;DR: In this paper, the magnetic phase transitions in a double perovskite Ho2FeCoO6 were characterized and studied through magnetization and specific heat, and the magnetic structures were elucidated through neutron powder diffraction.
Journal ArticleDOI
Magnetocaloric effect and spin-phonon correlations in RFe0.5Cr0.5O3 (R = Er and Yb) compounds
TL;DR: In this paper, the physical properties of mixed metal oxides RFe0.5Cr 0.5O3 (R = Er and Yb) were investigated and a significant value of magnetic entropy change ( Δ S M ) ∼ -12.4 J/kg-K was noted near the 2nd spin reorientation (SR) transition.
Journal ArticleDOI
Spin reorientation and disordered rare earth magnetism in Ho$_2$FeCoO$_6$
G. R. Haripriya,Harikrishnan S. Nair,R. Pradheesh,Sudhindra Rayaprol,Vasudeva Siruguri,Durgesh Singh,R. Venkatesh,V. Ganesan,K. Sethupathi,Sankaranarayanan V +9 more
TL;DR: The experimental observation of spin reorientation in the double perovskite Ho2FeCoO6 is reported, and it is seen that only short-range magnetic order prevails in Ho3+ - lattice.
Journal ArticleDOI
The order of magnetic phase transitions in disordered double perovskite oxides Sm2FeCoO6 and Dy2FeCoO6
TL;DR: In this article, the authors present the results on the order of phase transition around the spin re-orientation region using isothermal magnetization data performed on the sol-gel synthesized disordered double perovskite oxides Sm2FeCoO6 and Dy2FeO6 by Arrott plot method.
Journal ArticleDOI
Evidence for weak ferromagnetism and metamagnetic phase transitions in frustrated antiferromagnetic systems with octahedral structure
E. Jurčišinová,M. Jurčišin +1 more
TL;DR: In this article, the authors investigated the possible source of weak ferromagnetism and the metamagnetic phase transitions in the antiferromagnetic systems with octahedral structure, such as perovskites.
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