Magnetic and Transport Properties of CeCo12B6 and CeFe2Co10B6 Compounds under Pressure |
| M. Míšek a, Z. Arnold a, O. Isnard b, H. Mayot b, Y. Skorokhod a and J. Kamarád a
a Institute of Physics, AS CR, v.v.i., Na Slovance 2, 182 21, Prague 8, Czech Republic b Institut Néel, CNRS/Univ. J. Fourier, BP166x, 38042 Grenoble cedex, France |
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| Received: 9 07 2007; |
| Study of pressure effects on magnetic and transport properties of CeCo12B6 and CeFe2Co10B6 was performed in temperature range 5-300 K at pressures up to 9 kbar. The significant decrease in the Curie temperature TC as a consequence of Fe substitution from (135 ±1) K to (85 ±1) K is not accompanied by the changes of saturation magnetization. The decrease in TC with pressure is the same for both samples - ΔTC/ Δp ≈- 0.5 K/kbar. The relative decrease in saturation magnetization with pressure is about 0.3%/kbar for both samples. Pressure induced resistivity changes were below 1%. The relatively low pressure effect on both the TC and magnetization can be attributed to the hybridization as a consequence of small distances between the Co and B atoms. |
| DOI: 10.12693/APhysPolA.113.263 PACS numbers: 75.10.-b, 75.25.+z, 75.30.Kz |