Giant Magnetostriction in Ferrimagnetic SmFe <sub>5</sub> As <sub>3</sub>
Abstract
ABSTRACT Magnetostrictive materials are of interest not only from a fundamental perspective but also for their potential applications, spanning spintronics to energy harvesting. A new magnetostrictive material—SmFe 5 As 3 —reveals a complex interplay between magnetostriction, magnetic properties, and the crystal structure behavior. The ground state of SmFe 5 As 3 is ferrimagnetic, as evidenced by magnetic susceptibility data, band‐structure calculations, and XANES measurements. At K, part of the Fe sublattice reorients, transitioning into a ferromagnetic state. This is followed by an entrance into the paramagnetic state at K. The effects observed in the magnetic measurements are accompanied by structural phase transitions. All three phases—below , between and , and above —are described by the same structural motif of the UCr 5 P 3 type (monoclinic space group ), differing only in the degree of deformation of the Fe–As framework. The new material exhibits giant magnetostriction of . Dilatometry measurements on a SmFe 5 As 3 single crystal indicate strongly diverse behavior, exhibiting not only negative, but also zero, as well as positive thermo‐elastic effects.
Article Details
Authors (22)
Oksana Karychort
Max Planck Institute for Chemical Physics of Solids Dresden Germany
Jan Priessnitz
Max Planck Institute for the Physics of Complex Systems Dresden Germany
Volodymyr Buturlim
Idaho National Laboratory Idaho Falls Idaho USA
Mitja Krnel
Max Planck Institute for Chemical Physics of Solids
Iñigo Robredo
Luxembourg Institute of Science and Technology (LIST), 5 Avenue des Hauts-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg
Nazar Zaremba
Max Planck Institute for Chemical Physics of Solids
Ulrich Burkhardt
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, Dresden 01187, Germany
Helge Rosner
Max Planck Institute for Chemical Physics of Solids Dresden Germany
Andrew Fitch
European Synchrotron Radiation Facility
Markus König
Max Planck Institute for Chemical Physics of Solids
Fabrice Wilhelm
ESRF─The European Synchrotron Radiation Facility, CS 40220, 38043 Grenoble, Cedex 9, France
Olha Zhak
Department of Analytical Chemistry Ivan Franko National University of Lviv Lviv Ukraine
Dileep Krishnan
Thermo Fisher Scientific Eindhoven The Netherlands
Ivan Soldatov
Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden) Dresden Germany
Rudolf Schäfer
Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden) Dresden Germany
Maia Vergniory
Regroupement Québécois sur les Matériaux de Pointe (RQMP) Québec Canada
Libor Šmejkal
Theo Siegrist
Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering 1 , Tallahassee, Florida 32310,
Berit H. Goodge
Krzysztof Gofryk
Idaho National Laboratory Idaho Falls Idaho USA
Yurii Prots
Max Planck Institute for Chemical Physics of Solids
Eteri Svanidze
Max Planck Institute for Chemical Physics of Solids