Influence of Carbon on Spin Reorientation Processes in Er_{2-x}R_xFe_{14}C (R~=~Gd, Pr) - Mössbauer and Magnetometric Studies

• Authors: A. Pędziwiatr , K. Krawiec , B. Bogacz , Cz. Kapusta , J. Przewoźnik , D. Kaczorowski , E. Talik
• Languages of publication: EN

Abstracts

EN

The Er_{2-x}R_{x}Fe_{14}C (R=Gd, Pr) polycrystalline compounds have been synthesized and investigated with ^{57}Fe Mössbauer spectroscopy and magnetic measurements. The spin reorientation phenomena were studied extensively by narrow step temperature scanning in the neighborhood of the spin reorientation temperature. Obtained Mössbauer spectra were analyzed using a procedure of simultaneous fitting and the transmission integral approach. Consistent description of Mössbauer spectra were obtained, temperature and composition dependencies of hyperfine interaction parameters and subspectra contributions were derived from fits and the transition temperatures were determined for all the compounds studied. Initial magnetization versus temperature measurements (in zero and non-zero external field) for Er_{2-x}Gd_{x}Fe_{14}C compounds allowed to establish the temperature regions of reorientation, change of magnetization value during the transition process. The results obtained with different methods were analyzed and the spin arrangement diagrams were constructed. Data obtained for Er_{2-x}Gd_{x}Fe_{14}C were compared with those for Er_{2-x}Gd_{x}Fe_{14}B series.

Keywords

EN

76.80.+y; 75.25.-j; 75.50.-y; 75.50.Bb

Discipline

• 75.50.-y: Studies of specific magnetic materials
• 76.80.+y: Mössbauer effect; other γ-ray spectroscopy(see also 33.45.+x Mössbauer spectra—in atomic and molecular physics; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)
• 75.50.Bb: Fe and its alloys
• 75.25.-j: Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.)(for devices exploiting spin polarized transport, see 85.75.-d)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 119
• Issue: 1
• Pages: 48-51

Dates

published

2011-01

Contributors

author

A. Pędziwiatr

• M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland

author

K. Krawiec

• M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland

author

B. Bogacz

• M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow, Poland

author

Cz. Kapusta

• AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland

author

J. Przewoźnik

• AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland

author

D. Kaczorowski

• W. Trzebiatowski Institute for Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-950 Wrocław, Poland

author

E. Talik

• A. Chełkowski Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland

References

• 1. J. Herbst, Rev. Mod. Phys. 63, 819 (1991)
• 2. E. Burzo, Rep. Prog. Phys. 61, 1099 (1998)
• 3. K.H.J. Buschow, in: Ferromagnetic Materials, Eds. E.P. Wohlfarth, K.H.J. Buschow, Vol. 4, Amsterdam 1988
• 4. K.H.J. Buschow, Rep. Prog. Phys. 54, 1123 (1991)
• 5. M.R. Ibarra, Z. Arnold, P.A. Algarabel, L. Morellon, J. Kamarad, J. Phys. Condens. Matter 4, 9721 (1992)
• 6. A.T. Pędziwiatr, W.E. Wallace, J. Less-Common Met. 126, 41 (1996)
• 7. C. Piqué, R. Burriel, J. Bartolomé, J. Magn. Magn. Mater 154, 71 (1996)
• 8. A.T. Pędziwiatr, B.F. Bogacz, K. Krawiec, S. Wróbel, J. Alloys Compd. 490, 11 (2010)
• 9. P. Wolfers, M. Bacmann, D. Fruchart, J. Alloys Compd. 317-318, 39 (2001)
• 10. J. Żukrowski, A. Błachowski, K. Ruebenbauer, J. Przewoźnik, D. Sitko, N.-T.H. Kim-Ngan, Z. Tarnawski, A.V. Andreev, J. Appl. Phys. 103, 123910 (2008)
• 11. B.F. Bogacz, Mol. Phys. Rep. 30, 15 (2000)
• 12. A.T. Pędziwiatr, B.F. Bogacz, A. Wojciechowska, S. Wróbel, J. Alloys Compd. 396, 54 (2005)
• 13. P. Gütlich, R. Link, A. Trautwein, Mössbauer Spectroscopy and Transition Metal Chemistry, Springer-Verlag 1978

Identifiers

DOI

10.12693/APhysPolA.119.48