Journal
Article title
Authors
Title variants
Languages of publication
Abstracts
In the presented work we report electrical, magnetic and thermal properties of EuB_{6-x}C_{x} single crystals with an estimated value of x ≈ 0.07. Our studies reveal an antiferromagnetic phase transition at T_{N} ≈ 6.7 K. Electrical resistivity at zero magnetic field shows a pronounced resistivity maximum at T_{M} ≈ 7 K, just above the antiferromagnetic phase transition temperature. 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, yielding a ratio of ρ(0 T, 7 K)/ρ(9 T, 7 K) ≈ 2.5. The origin of such magnetoresistance is associated with formation of mixed magnetic structure in the system due to fluctuation of carbon concentration.
Discipline
- 75.47.Gk: Colossal magnetoresistance
- 72.15.Gd: Galvanomagnetic and other magnetotransport effects(see also 75.47.-m Magnetotransport phenomena; materials for magnetotransport)
- 75.30.Kz: Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.)(for ferroelectric phase transitions, see 77.80.B-; for superconductivity phase diagrams, see 74.25.Dw)
Journal
Year
Volume
Issue
Pages
893-894
Physical description
Dates
published
2010-11
Contributors
author
- Institute of Experimental Physics, Slovak Academy of Sciences, 040 01 Košice, Slovak Republic
author
- Institute of Experimental Physics, Slovak Academy of Sciences, 040 01 Košice, Slovak Republic
author
- Institute for Problems of Material Science, NASU, 252680 Kiev, Ukraine
author
- Institute of Experimental Physics, Slovak Academy of Sciences, 040 01 Košice, Slovak Republic
author
- Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 5, 121 16 Prague, Czech Republic
author
- Institute for Problems of Material Science, NASU, 252680 Kiev, Ukraine
author
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague, Czech Republic
author
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague, Czech Republic
References
- 1. J. Etorneau, P. Hagenmuller, Philos. Mag. B 52, 589 (1985)
- 2. J.M. Tarascon, J.L. Soubeyroux, J. Etorneau, R. Georges, J.M. Coey, O. Massenet, Solid State Commun. 37, 133 (1981)
- 3. I. Batko, M. Batkova, K. Flachbart, D. Macko, E.S. Konovalova, Yu.B. Paderno, J. Magn. Magn. Mater. 140-144, 1177 (1995)
- 4. M. Batkova, I. Batko, K. Flachbart, Z. Janu, K. Jurek, J. Kováč, M. Reiffers, V. Sechovský, N. Shitsevalova, E. Šantavá, J. Šebek, Phys. Rev. B 78, 224414 (2008)
- 5. M. Batkova, I. Batko, E. Bauer, R.T. Khan, V.B. Filipov, E.S. Konovalova, Solid State Commun. 150, 652 (2010)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv118n5073kz