Anomalous transport properties of carbon-doped EuB.sub.6./sub..

0355766 - FZÚ 2011 RIV PL eng J - Článek v odborném periodiku
Baťková, M. - Batko, I. - Filipov, V. - Flachbart, K. - Sechovský, V. - Shitsevalova, N. - Šantavá, Eva - Šebek, Josef
Anomalous transport properties of carbon-doped EuB₆.
Acta Physica Polonica A. Roč. 118, č. 5 (2010), s. 893-894. ISSN 0587-4246. E-ISSN 1898-794X
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: magnetoresistance * thermal properties * Eu boride
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 0.467, rok: 2010
http://przyrbwn.icm.edu.pl/APP/PDF/118/a118z5p073.pdf

We report electrical, magnetic and thermal properties of EuB6-xCx single crystals with an estimated value of x ~ 0.07. Our studies reveal an antiferromagnetic phase transition at TN ~ 6.7 K. Electrical resistivity at zero magnetic field shows a pronounced resistivity maximum at TM ~ 7 K. With increasing applied magnetic field the maximum moves to lower temperature and becomes totally suppressed at the field of 9 T. Observed magnetoresistance is negative in the whole studied temperature range 2–20 K. The origin of such magnetoresistance is associated with formation of mixed magnetic structure in the system due to fluctuation of carbon concentration.
Trvalý link: http://hdl.handle.net/11104/0194457