Magnetic properties of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>β</mi></math></span>-Fe<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Si</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span> single crystals

E. Arushanov; M. Respaud; J. M. Broto; Ch. Kloc; J. Leotin; E. Bucher

doi:10.1103/PhysRevB.53.5108

Magnetic properties of $β$ -Fe ${Si}_{2}$ single crystals

E. Arushanov, M. Respaud, J. M. Broto, Ch. Kloc, J. Leotin, and E. Bucher

Phys. Rev. B 53, 5108 – Published 1 March 1996

Abstract

The results of magnetization and magnetic susceptibility measurements on $n$ - and $p$ -type $β$ -Fe ${Si}_{2}$ single crystals are presented. The magnetic susceptibility in the studied crystals are determined by the temperature-independent contribution from the lattice, lattice defects and/or neutral impurities, and by the temperature-dependent parts due to paramagnetic centers as well as due to the carriers excited thermally at high temperature. The temperature variation of the paramagnetic terms are in agreement with the Curie-Weiss law. The values of the Curie-Weiss temperatures, activation energy of the donor and acceptor levels, and the upper (lower) limit of the density of state electron (hole) effective masses were estimated.

Received 2 August 1995

DOI:https://doi.org/10.1103/PhysRevB.53.5108

Authors & Affiliations

E. Arushanov^*

Service National des Champs Magnétiques Pulsés, UMS 819, CNRS, UPS, INSA, Complexe Scientifique de Rangueil, 31077 Toulouse-Cedex, France and Faculty of Physics, University of Konstanz, P.O. Box 5560, D-78434 Konstanz, Germany

M. Respaud and J. M. Broto