Title :
Magnetic properties of PrCr1−xFexO3Perovskite
Author :
Rao, B. Venugopal ; Prasad, B. Vittal ; Rao, Gottipaty N. ; Chou, F.C. ; Babu, D. Suresh
Author_Institution :
Dept. of Phys., Osmania Univ., Hyderabad, India
Abstract :
PrCr1-xFexO3(PCFO) samples were prepared by citric acid route. The samples were characterized by XRD and SEM. The sample exhibits a single phase orthorhombic structure with Pbnm space group. The Temperature dependent and field dependent magnetic measurements are measured in the range of 5K-400K at 100 Oe field and isothermal magnetization curves were recorded in the field range +5T to -5T at 5K temperature. The substitution of Fe3+ in Cr3+ site increases the Cr-O-Fe ferromagnetic superexchange interaction and thus increase in magnetic moments, with maximum at x=0.8. The frustration of co-existence of antiferromagnetism and ferromagnetism leads to decrease of magnetic ordering transition temperature from 240K (x=0) to 98K (x=0.8).
Keywords :
X-ray diffraction; antiferromagnetic materials; chromium compounds; ferrites; ferromagnetic materials; frustration; magnetic moments; magnetic transition temperature; magnetisation; praseodymium compounds; scanning electron microscopy; space groups; superexchange interactions; PrCr1-xFexO3; SEM; XRD; antiferromagnetism; citric acid process; ferromagnetic superexchange interaction; ferromagnetism; frustration; isothermal magnetization curves; magnetic moments; magnetic ordering transition temperature; magnetic properties; single phase orthorhombic structure; space group; temperature 5 K to 400 K; Annealing; Ions; Saturation magnetization; X-ray scattering; Canted anti ferromagnetism; Multiferroics; Neel temperature; Orthochromites; Superexchangeinteraction;
Conference_Titel :
Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET), 2013 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4799-1377-0
DOI :
10.1109/ICANMEET.2013.6609292
