RT Journal Article T1 Synthesis and characterization of FePt/Au core-shell nanoparticles A1 Presa Muñoz De Toro, Patricia Marcela De La A1 Multigner, M. A1 Morales, M. P. A1 Rueda, T. A1 Fernández Pinel, E. A1 Hernando Grande, Antonio AB In this work, the structural and magnetic properties of the gold- coated FePt nanoparticles synthesized from high- temperature solution phase are presented. The amount of gold was optimized to obtain most of the FePt particles coated. The particle diameter increases from 4 to 10 nm as observed by TEM. The magnetic properties are largely affected by the coating. At low temperature, the coercive. field Hc of the coated nanoparticles decreases about three times respect to the uncoated and the blocking temperature reduces to the half. The changes of the magnetic behavior are discussed in terms of the effect of the gold atoms at the FePt core surface. PB Elsevier Science Bv SN 0304-8853 YR 2007 FD 2007-09 LK https://hdl.handle.net/20.500.14352/52149 UL https://hdl.handle.net/20.500.14352/52149 LA eng NO © 2007 Elsevier B.V. All rights reserved.Financial support from the Comunidad Autónoma de Madrid under Project No. S-0505/MAT/0194 is acknowledged. NO Comunidad Autónoma de Madrid DS Docta Complutense RD 8 abr 2025