We performed inelastic neutron scattering experiments employing polarized neutrons with polarization analysis on CeCu2 and CeCu6 single crystals to study the magnetic excitation spectra originating from crystalline electric field (CEF) transitions. From these measurements information about the individual transition matrix elements within and between the different CEF levels of the Ce3+ (J = 5/2) ground state multiplet are obtained. This leads in the case of CeCu2 to a set of crystal field parameters, which is in agreement with the results of microscopic as well as macroscopic measurements. For CeCu6 our results confirm the existence of the excited crystal field levels positioned at around 7 and 13 meV.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Not to confuse the reader, we will use the orthorhombic notation throughout the paper.
Gratz E., Bauer E., Barbara B., Zemirli S., Steglich F., Bredel C., Lieke W. (1985) J. Phys. F: Met. Phys. 15: 1975
R. Trump, Ph.D Thesis, Strukturelle und dynamische Eigenschaften des Magnetismus im Kondo–Gitter CeCu 2, University to Cologne (1991).
Nunez V., Trump R., Brown P.J., Chattopadhyay T., Loewenhaupt M., Tasset F. (1991) J. Phys.: Condens. Matter 4:1115
Schedler R., Witte U., Loewenhaupt M., Kulda J. (2003) Physica B 335, 41
Loewenhaupt M., Witte U. (2003) J. Phys.: Condens. Matter 15, 519
Hense K., Witte U., Rotter M., Schedler R., Gratz E., Nowotny H., Loewenhaupt M. (2004) J. Magn. Magn. Mater. 272–276, E387
Loewenhaupt M., Prager M., Gratz E., Frick B. (1988) J. Magn. Magn. Mater. B 76/77, 415
Walter U., Wohlleben D., Fisk Z. (1986) Z. Phys. B 62, 325
Goremychkin E.A., Osborn R. (1993) Phys. Rev. B 47, 14580
Stroka B., Schröder A., Trappmann T., Löhneysen H.v., Loewenhaupt M., Severing A. (1993) Z. Phys. B 90, 155
Hicks T.J., Goossens D.J., Harker S.J., Mulders A.M., Kennedy S.J. (2004) Physica B 345, 86
Hutchings M.T. (1965) Proc. Phys. Soc. 85, 397
Amato A., Jaccard D., Flouquet J., Lapierre F., Tholence J., Fisher R., Lacy S., Olsen J., Phillips N. (1987) J. Low Temp. Phys. 68, 371
Satoh K., Fukada A., Umehara I., \(\overline{O}\)nuki Y., Sato H., Takayanagi S. J. Phys. Soc. Jpn. 61, 3267 (1992).
Zemirli S., Barbara B. (1985) Solid State Commun. 56, 385
Janousova B., Kulda J., Divis M., Sechovsky V., Komatsubara T. (2004) Phys. Rev. B 69, 220412(R)
Moon R.M., Riste T., Koehler W.C. (1969) Phys. Rev. 181, 920
Schedler R., Witte U., Rotter M., Doerr M., Loewenhaupt M., Kulda J. (2004) Physica B 350, e107
Stevens K.W.H. (1952) Proc. Phys. Soc. A 65, 209
Gratz E., Loewenhaupt M., Divis M., Steiner W., Bauer E., Pillmayr N., Müller H., Nowotny H., Frick B. (1991) J. Phys.: Condens. Matter 4: 9297
S. J. Harker, T. J. Hicks, S. J. Kennedy, and D. Yu, to be published in Physica B (Proceedings of PNCMI 2006).
Winkelmann M., Fischer G., Pilawa B., Brooks M.S.S., Dormann E. (2006) Phys. Rev. B 73: 165107
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Witte, U., Schedler, R., Stockert, O. et al. The Investigation of the Crystalline Electric Field of CeCu2 and CeCu6 . J Low Temp Phys 147, 97–110 (2007). https://doi.org/10.1007/s10909-007-9302-4
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10909-007-9302-4