Abstract
We have studied the correlation between the structural distortion and the electronic/magnetic properties in single-crystalline (Lu,Sc)Fe2O4 (Sc = 0.05 and 0.3) by using X-ray diffraction (XRD), magnetic susceptibility, and X-ray absorption spectroscopy (XAS)/X-ray magnetic circular dichroism (XMCD) measurements. The Rietveld structure analysis of the XRD patterns revealed that the Sc substitution induced an elongation of the FeO5 bipyramidal cages in LuFe2O4 and increased the Fe2O4 bilayer thickness. A non-negligible decrease in the ferrimagnetic transition temperature T C is observed in the magnetic susceptibility curve of the Sc = 0.3 sample, but the XAS/XMCD spectra do not show any difference except for a small reduction of dichroism signals at the Fe3+absorption edge. We interpret this suppression of TC to be the result of a decreased spin-orbit coupling effect in the Fe2+ e 1g doublet under D 3h symmetry, which is induced by the weakened structural asymmetry of the FeO5 bipyramids.
Similar content being viewed by others
References
S.-W. Cheong and M. Mostovoy, Nature Mater. 6, 13 (2007).
N. Ikeda et al., Nature 436, 1136 (2005).
D. I. Khomskii, J. Magn. Magn. Mater. 306, 1 (2006).
X. S. Xu, J. de Groot, Q.-C. Sun, B. C. Sales, D. Mandrus, M. Angst, A. P. Litvinchuk and J. L. Musfeldt, Phys. Rev. B 82, 014304 (2010).
P. Ren, Z. Yang, W. G. Zhu, C. H. A. Huan and L. Wang, J. Appl. Phys. 109, 074109 (2011).
J. de Groot, T. Mueller, R. A. Rosenberg, D. J. Keavney, Z. Islam, J.-W. Kim and M. Angst, Phys. Rev. Lett. 108, 187601 (2012).
D. Niermann, F. Waschkowski, J. de Groot, M. Angst and J. Hemberger, Phys. Rev. Lett. 109, 016405 (2012).
T. Kambe, Y. Fukada, J. Kano, T. Nagata, H. Okazaki, T. Yokoya, S. Wakimoto, K. Kakurai and N. Ikeda, Phys. Rev. Lett. 110, 117602 (2013).
J. Lee, et al., Sci. Rep. 3, 2654 (2013).
K. T. Ko, H.-J. Noh, J.-Y. Kim, B.-G. Park, J.-H. Park, A. Tanaka, S. B. Kim, C. L. Zhang and S.-W. Cheong, Phys. Rev. Lett. 103, 207202 (2009).
J. de Groot et al., Phys. Rev. Lett. 108, 037206 (2012).
H.-J. Noh, H. Sung, J. Jeong, J. Jeong, S. B. Kim, J.-Y. Kim, J. Y. Kim and B. K. Cho, Phys. Rev. B 82, 024423 (2010).
D. H. Kim et al., Phys. Rev. B 87, 184409 (2013).
S. Lee, W. Ratcliff II, S.-W. Cheong and V. Kiryukhin, Appl. Phys. Lett. 92, 192906 (2008).
J. Iida, S. takekawa and N. Kimizuka, J. Crystal Growth 102, 398 (1990).
T. Roisnel and J. Rodriguez-Carvajal, FullProf, 2000.
A. D. Christianson et al., Phys. Rev. Lett. 100, 107601 (2008).
W. Wu et al., Phys. Rev. Lett. 101, 137203 (2008).
X. S. Xu et al., Phys. Rev. Lett. 101, 227602 (2008).
S. Patankar, S. K. Pandey, V. R. Reddy, A. Gupta, A. Banerjee and P. Chaddah, EPL 90, 57007 (2010).
F. Wang, J. Kim, G. D. Gu, Y. Lee, S. Bae and Y.-J. Kim, J. Appl. Phys. 113, 063909 (2013).
D. Y. Cho et al., Phys. Rev. Lett. 98, 217601 (2007).
N. Kimizuka, A. Takenaka, Y. Sasada and T. Katsura, Solid State Commun. 15, 1321 (1974).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Jeong, J., Noh, HJ. & Kim, S.B. Effects of structural distortion induced by Sc substitution in LuFe2O4 . Journal of the Korean Physical Society 64, 1701–1706 (2014). https://doi.org/10.3938/jkps.64.1701
Received:
Published:
Issue Date:
DOI: https://doi.org/10.3938/jkps.64.1701