Magnetic and Transport Properties of CeCo_{12}B_6 and CeFe_2Co_{10}B_6 Compounds under Pressure

• Authors: M. Míšek , Z. Arnold , Y. Skorokhod , J. Kamarád , O. Isnard , H. Mayot
• Languages of publication: EN

Abstracts

EN

Study of pressure effects on magnetic and transport properties of CeCo_{12}B_6 and CeFe_2Co_{10}B_6 was performed in temperature range 5-300 K at pressures up to 9 kbar. The significant decrease in the Curie temperature T_C 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 T_C with pressure is the same for both samples -ΔT_C/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 T_C and magnetization can be attributed to the hybridization as a consequence of small distances between the Co and B atoms.

Keywords

EN

75.10.-b; 75.25.+z; 75.30.Kz

Discipline

• 75.10.-b: General theory and models of magnetic ordering(see also 05.50.+q Lattice theory and statistics)
• 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: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 263-266

Dates

published

2008-01

received

2007-07-09

Contributors

author

M. Míšek

• Institute of Physics, AS CR, v.v.i., Na Slovance 2, 182 21, Prague 8, Czech Republic

author

Z. Arnold

• Institute of Physics, AS CR, v.v.i., Na Slovance 2, 182 21, Prague 8, Czech Republic

author

Y. Skorokhod

• Institute of Physics, AS CR, v.v.i., Na Slovance 2, 182 21, Prague 8, Czech Republic

author

J. Kamarád

• Institute of Physics, AS CR, v.v.i., Na Slovance 2, 182 21, Prague 8, Czech Republic

author

O. Isnard

• Institut Néel, CNRS/Univ. J. Fourier, BP166x, 38042 Grenoble cedex, France

author

H. Mayot

• Institut Néel, CNRS/Univ. J. Fourier, BP166x, 38042 Grenoble cedex, France

References

• 1. W. Jung, D. Quentmeier, Z. Kristallogr. 151, 121 (1980)
• 2. M. Mittag, M. Rosenberg, K.H.J. Buschow, J. Magn. Magn. Mater. 82, 109 (1989)
• 3. M. Rosenberg, T. Sinnemann, M. Mittag, K.H.J. Buschow, J. Alloys Comp. 182, 145 (1992)
• 4. K.H.J. Buschow, in: Proc. 5th Int. Workshop on Rare Earth Magnets, Bad Soden 1987, Eds. C. Herget, R. Poersche, Deutsche Physikalische Gesellschaft GmbH, Bad Honnef 1987, p. 453
• 5. O. Isnard, unpublished results
• 6. Z. Arnold, O. Isnard, unpublished results

Identifiers

DOI

10.12693/APhysPolA.113.263