Semiconductor-metal transition in FeSi in ultrahigh magnetic field

Authors
Kudasov, YB Volkov, AG Povzner, AA Bajankin, PV Bykov, AI Dolotenko, MI Guk, VG Kolokol'chikov, NP Krjuk, VV Monakhov, MP Markevtsev, IM Platonov, VV Selemir, VD Tatsenko, OM Filippov, AV
Citation
Yb. Kudasov et al., Semiconductor-metal transition in FeSi in ultrahigh magnetic field, PHYSICA B, 298(1-4), 2001, pp. 486-490
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
298
Issue
1-4
Year of publication
2001
Pages
486 - 490
Database
ISI
SICI code
0921-4526(200104)298:1-4<486:STIFIU>2.0.ZU;2-C
Abstract
We study the conductivity and magnetic susceptibility of single-crystal iro n monosilicide under ultra high magnetic field at 4.2 and 77 K. At 77 K we detect a gradual increase of conductivity by more than a factor of 100 as t he magnetic field gets stronger. At 4.2 K we observe the first-order semico nductor-metal phase transition in the field of 355 T. The transition was ac companied by a step of magnetic moment by 0.95 mu (B), per iron atom. The n ature of the transition is discussed. (C) 2001 Published by Elsevier Scienc e B.V.