pith. machine review for the scientific record. sign in

arxiv: cond-mat/0412375 · v1 · submitted 2004-12-14 · ❄️ cond-mat.str-el · cond-mat.other

Recognition: unknown

The Role of Grain Boundaries in Determining the Transport Properties in Magnetite

David C. Mertens (1) , W. Montfrooij (1) , R. J. McQueeney (2) , M. Yethiraj (3) , J. M. Honig (4) ((1) Department of Phhysics , Astronomy , University of Missouri , Columbia
show 6 more authors
(2)Department of Physics Iowa State University/Ames Laboratory (3) Center for Neutron Scattering Oak Ridge National Laboratory (4) Chemistry Department Purdue University)
Authors on Pith no claims yet
classification ❄️ cond-mat.str-el cond-mat.other
keywords boundariesgraincrystalmagnetiteroleaccompanyingaccountapparent
0
0 comments X
read the original abstract

We present magnetoresistance and Hall-effect measurements on single crystal magnetite Fe3O4 close to the Verwey transition Tv = 123.8 K. We show that the formation of grain boundaries accompanying the reduction in crystal symmetry plays a significant role in the electron scattering mechanism, and that grain boundaries can account for the apparent change in sign of the charge carriers below Tv.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.