@article{b6a9a1bda5f344a5b2d2f445fd8d072a,
title = "Magnetic properties of nickel hydroxide nanoparticles",
abstract = "The magnetic properties of 10 nm size Ni (OH) 2 nanoparticles prepared by sol-gel method have been studied. The magnetic moments increase with decreasing temperature in a low applied field, which is due to the spin-frozen-like state at low temperatures, and the metamagnetic transition is not clearly observed even in an applied field of 70 kOe due to the size effect. Furthermore, the transition from paramagnetic to antiferromagnetic in the Ni (OH) 2 nanoparticles occurs at lower temperature (22 K).",
author = "Liu, {X. H.} and W. Liu and Lv, {X. K.} and F. Yang and X. Wei and Zhang, {Z. D.} and Sellmyer, {D. J.}",
note = "Funding Information: This work has been supported by the National Nature Science Foundation of China under Project Nos. 50831006 and 50971123 and National Basic Research Program (Grant No. 2010CB934603) of China, the Ministry of Science and Technology of China. Research at Nebraska (X.W. and D.J.S) supported by NSF-MRSEC (Grant No. DMR-0820521). FIG. 1. XPS spectra of Ni 2 p 3 / 2 and Ni 2 p 1 / 2 of powder. Inset: the XRD pattern of Ni ( OH ) 2 . FIG. 2. Temperature dependences of ZFC and FC magnetization in applied field of 0.1 kOe. Inset: the ac susceptibility vs temperature. FIG. 3. Temperature dependences of ZFC and FC magnetization curves in applied field of 1, 10, and 50 kOe. Inset: ZFC M - H curve in applied field of 70 kOe at 10 K. FIG. 4. Hysteresis loops at 5, 10, 15, and 20 K recorded at applied fields up to 50 kOe, after FC at cooling field of 5 kOe, respectively. FIG. 5. Temperature dependence of H EX and H C measured in applied field of 50 kOe, after FC at a cooling field of 5 kOe. Inset: hysteresis loop at 5 K in a cooling field of 5 kOe, the H EX and irreversibility field are marked by arrows. ",
year = "2010",
month = apr,
day = "15",
doi = "10.1063/1.3374468",
language = "English (US)",
volume = "107",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics",
number = "8",
}