01464nas a2200205   4500008004100000022001400041245007800055210006900133260005700202300001200259490000700271520073000278100001901008700002101027700001801048700002201066700002501088700003301113856011201146       2010                        eng d  a0947-839600aInverse magnetocaloric effect in sol-gel derived nanosized cobalt ferrite0 aInverse magnetocaloric effect in solgel derived nanosized cobalt  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcMAY  a497-5030 v993 a<p>The magnetocaloric properties of cobalt ferrite nanoparticles were investigated to evaluate the potential of these materials as magnetic refrigerants. Nanosized cobalt ferrites were synthesized by the method of sol-gel combustion. The nanoparticles were found to be spherical with an average crystallite size of 14 nm. The magnetic entropy change (Delta S (m)) calculated indirectly from magnetization isotherms in the temperature region 170-320 K was found to be negative, signifying an inverse magnetocaloric effect in the nanoparticles. The magnitudes of the Delta S (m) values were found to be larger when compared to the reported values in the literature for the corresponding ferrite materials in the nanoregime.</p>1 aGopalan, Veena1 aAl-Omari, I., A.1 aKumar, Sakthi1 aYoshida, Yasuhiko1 aJoy, Pattayil, Alias1 aAnantharaman, Maliemadom, R.  uhttps://library.ncl.res.in/content/inverse-magnetocaloric-effect-sol-gel-derived-nanosized-cobalt-ferrite-0