Peculiarities of the magnetocaloric properties in Ni-Mn-Sn ferromagnetic shape memory alloys

V. V. Khovaylo,1,2 K. P. Skokov,3,4 O. Gutfleisch,4 H. Miki,5 T. Takagi,5 T. Kanomata,6 V. V. Koledov,7 V. G. Shavrov,7 G. Wang,8 E. Palacios,8 J. Bartolomé,8 and R. Burriel8 1National University of Science and Technology “MISiS,” Moscow 119049, Russia 2Physics Department, Moscow State Mining University, Moscow 119991, Russia 3Faculty of Physics, Tver State University, Tver 170000, Russia 4Institute for Metallic Materials, Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), P.O. Box 270016, D-01171 Dresden, Germany 5Institute of Fluid Science, Tohoku University, Sendai 980-8577, Japan 6Faculty of Engineering, Tohoku Gakuin University, Tagajo 985-8537, Japan 7V.A. Kotel’nikov Institute of Radioengineering and Electronics, Moscow 125009, Russia 8Instituto de Ciencia de Materiales de Aragón and Departamento de Fisica de la Materia Condensada, CSIC–Universidad de Zaragoza, Zaragoza 50009, Spain Received 17 November 2009; revised manuscript received 18 March 2010; published 7 June 2010