[en] X-ray diffraction, isothermal magnetization at 5 and 300 K, ac magnetic susceptibility measurements between 5 and 200 K, and iron-57 Mossbauer spectral measurements between 4.2 and 295 K have been carried out on ErFe11Ti and ErFe11TiH. Hydrogen uptake has been measured by gravimetric analysis and the insertion of hydrogen into ErFe11Ti increases its magnetization, magnetic hyperfine fields, and isomer shifts as a result of the associated lattice expansion. Peaks and steplike changes in both the real and imaginary components of the ac magnetic susceptibility are observed at similar to50 and 40 K for ErFe11Ti and ErFe11TiH, respectively, and are assigned to spin-reorientation transitions resulting from the temperature dependence of the sixth-order Stevens crystal-field term of erbium. The Mossbauer spectra have been analyzed with a model which considers both these spin reorientations and the distribution of titanium atoms in the near-neighbor environment of the three crystallographically distinct iron sites. The assignment and the temperature dependencies of the hyperfine fields and isomer shifts are in complete agreement with the Wigner-Seitz cell analysis of the three iron sites in ErFe11Ti and ErFe11TiH. The changes in the hyperfine field and isomer shift with the number of titanium near neighbors of the three iron sites are in agreement with the values observed for related titanium-iron intermetallic compounds. (C) 2003 American Institute of Physics.
Disciplines :
Physics
Author, co-author :
Piquer, C.
Hermann, Raphaël ; Université de Liège - ULiège > Département de physique > Département de physique
Grandjean, Fernande ; Université de Liège - ULiège > Département de physique > Département de physique
Long, G. J.
Isnard, O.
Language :
English
Title :
Magnetic and mossbauer spectral study of ErFe11Ti and ErFe11TiH
Publication date :
2003
Journal title :
Journal of Applied Physics
ISSN :
0021-8979
eISSN :
1089-7550
Publisher :
American Institute of Physics, Melville, United States - New York
K. H. J. Buschow, in Electronic and Magnetic Properties of Metals and Ceramics, Materials Science and Technology, Series, Vol. 3B, Part II, edited by K. H. J. Buschow (VCH, Berlin, 1994), p. 451.
B. P. Hu, H. S. Li, J. P. Gavigan, and J. M. D. Coey, J. Phys.: Condens. Matter 1, 755 (1989).
G. J. Long, D. Hautot, F. Grandjean, O. Isnard, and S. Miraglia, J. Magn. Magn. Mater. 202, 100 (1999).
N. Plugaru, J. Rubin, J. Bartolomé, C. Piquer, and M. Artigas, Phys. Rev. B 65, 134419 (2002).
F. R. de Boer, Y. K. Huang, D. B. de Mooij, and K. H. J. Buschow, J. Less-Common Met. 135, 199 (1987).
D. B. de Mooij and K. H. J. Buschow, J. Less-Common Met. 136, 207 (1988).
K. H. J. Buschow, J. Magn. Magn. Mater. 100, 79 (1991).
L. Y. Zhang and W. E. Wallace, J. Less-Common Met. 149, 371 (1989).
O. Isnard, M. Guillot, S. Miraglia, and D. Fruchart, J. Appl. Phys. 79, 5542 (1996).
Bo Ping Hu, Ph. D. thesis, University of Dublin, Trinity College, 1990.
K. H. J. Buschow, in Handbook of Magnetic Materials, edited by K. H. J. Buschow (Elsevier, Amsterdam, 1997), Vol. 10, p. 463.
O. Isnard, S. Miraglia, M. Guillot, and D. Fruchart, J. Alloys Compd. 275, 637 (1998).
D. P. F. Hurley, Ph. D. thesis, Trinity College, Dublin, 1993.
Q. Qi, Y. P. Li, and J. M. D. Coey, J. Phys.: Condens. Matter 4, 8209 (1992).
D. P. F. Hurley and J. M. D. Coey, J. Phys.: Condens. Matter 4, 5573 (1992).
A. V. Andreev, V. Sechovsky, N. V. Kudrevatykh, S. S. Sigaev, and E. N. Tarasov, J. Less-Common Met. 144, L21 (1988).
B. P. Hu, H. Sun, J. M. D. Coey, and J. P. Gavigan, Phys. Rev. B 41, 2221 (1990).
X. C. Kou, T. S. Zhao, R. Grössinger, H. R. Kirchmayer, X. Li, and F. R. de Boer, Phys. Rev. B 47, 3231 (1993).
L. Y. Zhang, E. B. Boltich, V. K. Sinha, and W. E. Wallace, IEEE Trans. Magn. 25, 3303 (1989).
K. Yu. Guslienko, X. C. Kou, and R. Grössinger, J. Magn. Magn. Mater. 150, 383 (1995).
O. Isnard and M. Guillot, J. Appl. Phys. 83, 6730 (1998).
S. A. Nikitin, I. S. Tereshina, V. N. Verbetsky, and A. A. Salamova, J. Alloys Compd. 316, 46 (2001).
I. S. Tereshina, S. A. Nikitin, V. N. Nikiforov, L. A. Ponomarenko, V. N. Verbetsky, A. A. Salamova, and K. P. Skokov, J. Alloys Compd. 345, 16 (2002).
A. Barlet, J. C. Genna, and P. Lethuillier, Cryogenics 31, 801 (1991).
C. Rillo, F. Lera, A. Badia, L. Angurel, J. Bartolomé, F. Palacio, R. Navarro, and A. J. Duyneveldt, in Susceptibility of Superconductors and Other Spin Systems, edited by R. A. Hein, J. L. Francavilla, and D. H. Liebenberg (Plenum, New York, 1992).
E. Tomey, O. Isnard, A. Fagan, C. Desmoulins, S. Miraglia, J. L. Soubeyroux, and D. Fruchart, J. Alloys Compd. 191, 223 (1993).
A. Apostolov, R. Bezdushnyi, N. Stanev, R. Damianova, D. Fruchart, J. L. Soubeyroux, and O. Isnard, J. Alloys Compd. 265, 1 (1998).
O. Isnard, P. Vulliet, J. P. Sanchez, and D. Fruchart, J. Magn. Magn. Mater. 189, 47 (1998).
Z. W. Li, X. Z. Zhou, and A. H. Morrish, J. Phys.: Condens. Matter 5, 3027 (1993).
M. Brouha, K. H. J. Buschow, and A. R. Miedema, IEEE Trans. Magn. 10, 182 (1974).
F. Grandjean, O. Isnard, and G. J. Long, Phys. Rev. B 65, 64429 (2002).
Z. F. Gu, D. C. Zeng, Z. Y. Liu, S. Z. Liang, J. C. P. Klasse, E. Brück, F. R. de Boer, and K. H. J. Buschow, J. Alloys Compd. 321, 40 (2001).
G. J. Long, G. K. Marasinghe, S. Mishra, O. A. Pringle, Z. Hu, W. B. Yelon, D. P. Middleton, K. H. J. Buschow, and F. Grandjean, J. Appl. Phys. 76, 5383 (1994).
D. P. Middleton, S. R. Mishra, G. J. Long, O. A. Pringle, Z. Hu, W. B. Yelon, F. Grandjean, and K. H. J. Buschow, J. Appl. Phys. 78, 5568 (1995).
S. R. Mishra, G. J. Long, O. A. Pringle, D. P. Middleton, Z. Hu, W. B. Yelon, F. Grandjean, and K. H. J. Buschow, J. Appl. Phys. 79, 3145 (1996).
D. Hautot, G. J. Long, P. C. Ezekwenna, F. Grandjean, D. P. Middleton, and K. H. J. Buschow, J. Appl. Phys. 83, 6736 (1998).
I. S. Tereshina, P. Gaczynsku, V. S. Rusakov, H. Drulis, S. A. Nikitin, W. Suski, N. V. Tristan, and T. Palewski, J. Phys.: Condens. Matter 13, 8161 (2001).
L. Gelato, J. Appl. Crystallogr. 14, 141 (1981).
D. Hautot, G. J. Long, F. Grandjean, O. Isnard, and S. Miraglia, J. Appl. Phys. 86, 2200 (1999).
D. Hautot, G. J. Long, F. Grandjean, and O. Isnard, Phys. Rev. 62, 11731 (2000).
J. L. Dormann, Rev. Phys. Appl. 15, 1113 (1980).
F. Grandjean, P. C. Ezekwenna, G. J. Long, O. A. Pringle, P. L'Héritier, M. Ellouze, H. P. Luo, and W. B. Yelon, J. Appl. Phys. 84, 1893 (1998).
E. V. Mielczarek and W. P. Winfree, Phys. Rev. B 11, 1026 (1975).
J. Lu, H. J. Hesse, J. Zukrowski, J. Przewoznik, and G. Wortmann, in Conference Proceedings, Vol. 50, International Conference of the Applications of the Mösbauer Effect, edited by I. Ortalli (Italian Physical Society, Bologna, 1996), p. 243.
G. J. Long, D. Hautot, F. Grandjean, D. T. Morelli, and G. P. Meisner, Phys. Rev. B 60, 7410 (1999); ibid. 62, 6829 (2000).
G. J. Long, D. Hautot, F. Grandjean, D. T. Morelli, and G. P. Meisner, Phys. Rev. B 60, 7410 (1999); ibid. 62, 6829 (2000).
R. H. Herber, in Chemical Mössbauer Spectroscopy, edited by R. H. Herber (Plenum, New York, 1984), p. 199.
G. J. Long, O. Isnard, and F. Grandjean, J. Appl. Phys. 91, 1423 (2002).
F. Grandjean, R. P. Hermann, and G. J. Long (unpublished).
