000132143 001__ 132143 000132143 005__ 20240301161206.0 000132143 0247_ $$2doi$$a10.1016/j.jmmm.2006.09.011 000132143 0248_ $$2sideral$$a65622 000132143 037__ $$aART-2007-65622 000132143 041__ $$aeng 000132143 100__ $$0(orcid)0000-0003-0828-3212$$aMillan, A. 000132143 245__ $$aSurface Effects in Maghemite Nanoparticles 000132143 260__ $$c2007 000132143 5060_ $$aAccess copy available to the general public$$fUnrestricted 000132143 5203_ $$aA consistent model is presented for the variation of saturation magnetization with particle size in maghemite nanoparticles, based on the existence of a magnetically disordered layer with a constant thickness of 1 nm. For particles smaller than 3 nm, layer thickness increases rapidly, and MS is already zero for 2.5 nm particle size. Magnetization measurements have been performed on maghemite–polymer nanocomposites with low size dispersion and a regular distribution of particles in the matrix. A representative number of samples have been studied with a diameter size in the range from 1.5 to 15 nm and ±10% of size dispersion. 000132143 536__ $$9info:eu-repo/grantAgreement/ES/CICYT/MAT2004-03395-C02-01 000132143 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000132143 590__ $$a1.704$$b2007 000132143 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b47 / 184 = 0.255$$c2007$$dQ2$$eT1 000132143 591__ $$aPHYSICS, CONDENSED MATTER$$b20 / 59 = 0.339$$c2007$$dQ2$$eT2 000132143 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000132143 700__ $$0(orcid)0000-0002-8424-9780$$aUrtizberea, A. 000132143 700__ $$aSilva, N. J. O. 000132143 700__ $$0(orcid)0000-0002-6403-7270$$aPalacio, F. 000132143 700__ $$aAmaral, V. S. 000132143 700__ $$aSnoeck, E. 000132143 700__ $$aSerin, V. 000132143 773__ $$g312, 1 (2007), L5-L9$$pJ. magn. magn. mater.$$tJournal of Magnetism and Magnetic Materials$$x0304-8853 000132143 8564_ $$s811538$$uhttps://zaguan.unizar.es/record/132143/files/texto_completo.pdf$$yPostprint 000132143 8564_ $$s2231783$$uhttps://zaguan.unizar.es/record/132143/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000132143 909CO $$ooai:zaguan.unizar.es:132143$$particulos$$pdriver 000132143 951__ $$a2024-03-01-14:50:37 000132143 980__ $$aARTICLE