Investigation of cation distribution, electrical, magnetic properties and their correlation in Mn2-xCo2xNi1-xO4 films

• Published in: Journal of applied physics Vol. 115; no. 11
• Main Authors: Wu, Jing, Huang, Zhiming, Zhou, Wei, Ouyang, Cheng, Hou, Yun, Gao, Yanqing, Chen, Ren, Chu, Junhao
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 21.03.2014
• Subjects: Antiferromagnetism; Applied physics; Cations; Cooling curves; Crystals; Divergence; Electrical measurement; Electrical resistivity; Ferromagnetism; Hopping conduction; Magnetic properties; Magnetic transitions; Magnetism; Magnetization; Magnetization curves; Manganese; Neel temperature; Nickel; Transition temperature; X ray spectra

X-ray photoelectron spectroscopy was performed on Mn2-xCo2xNi1-xO4 (x = 0.2, 0.4, 0.5, 0.6, and 0.8) series spinel films to determine their cation distributions. The results show that both Ni and Co ions exhibit bivalence, while Mn ions exhibit coexisting multivalence. The hopping frequency ν0 of ea...