Abstract
55Mn and 139La NMR techniques are shown to be an excellent tool for detecting changes in the local electronic properties of colossal magnetoresistance manganites. Based on this we discuss the possibility of detecting orbital ordering in ferromagnetic La1-xCaxMnO3 (0.20≤x<0.5). We also provide evidence about the formation of an unusual kind of phase separation in the low temperature regime of the ferromagnetic conductive regime of the magnetic phase diagram for x≥0.25. Specifically, we show that by lowering temperature, an extra NMR signal is formed in the ferromagnetic conductive phase, which originates from regions with extremely small magnetic anisotropy, possibly produced by strong orbital fluctuations.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Jonker, G. H., Van Santen, J. H. (1950) Ferromagnetic Compounds of Manganese with Perovskite Structure, Physica 16, 337–349.
Von Helmolt, R., Wecker, J., Holzapfel, B., Schultz, L. and Samwer, K. (1993) Giant negative magnetoresistance in perovskitelike La2/3Ba2/3MnOx ferromagnetic films, Physical Review Letters 71, 2331–2334.
Schiffer, P. Ramirez, A. P., Bao, W., and Cheong, S-W (1995) Low Temperature Magnetoresistance and the Magnetic Phase Diagram of La1-xCaxMnO3, Physical Review Letters 75, 3336–3339.
Zener, C. (1951) Interaction between the d-Shells in the Transition Metals. II. Ferromagnetic Compounds of Manganese with Perovskite Structure, Physical Review 2, 403–405.
Endoh, Y., Hirota, K., Ishihara, S., Okamoto, S., Murakami, Y., Nishizawa, A., Fukuda, T., Kimura, H., Nojiri, H., Kaneko, K., Maekawa, S. (1999) Transition between Two Ferromagnetic States Driven by Orbital Ordering in La0.88Sr0.12MnO3, Physical Review Letters 82, 4328–4331.
Yamada, Y., Hino, O., Nodho, S., Kanao, R. (1996) Polaron Ordering in Low-Do** La1-xSrxMnO3, Physical Review Letters 77, 904–907.
Uhlenbruck, S., Teipen, R. Klingeler, R., Büchner, B., Friedt, O., Hücker, M., Kierspel, H., Niemöller, T., Pinsard, L., Revcolevschi, A., Gross, R (1999) Interplay between Charge Order, Magnetism, and Structure in La0.875Sr0.125MnO3, Physical Review Letters 82, 185–188.
Dai, P., Fernadez-Baca, J. A., Wakabayashi, N., Plummer, E. W., Tomioka, Y., Tokura, Y. (2000) Short-Range Polaron Correlations in the Ferromagnetic La1-xCaxMnO3, Physical Review Utters 85, 2553–2556.
Papavassiliou, G., Fardis, M., Belesi, M., Maris, T.G., Rallias, G., Pissas, M., Niarchos, D., Dimitropoulos, C., Dolinsek, J. (2000) 55Mn NMR Investigation of Electronic Phase Separation in La,. xCaxMnO3 for 0.2≤x≤0.5, Physical Review Letters 84, 761–764.
Belesi, M., Papavassiliou, G., Fardis, M., Pissas, M., Wegrowe, J. E., Dimitropoulos, C. (2001) NMR as a local probe of magnetic anisotropy: The possibility of orbital ordering and orbital liquid states in colossal magnetoresistance manganites, Physical Review B 63, 180406R.
Lobanov, M. V., Balagurov, A. M., Pomjakushin, V. Ju., Fischer, P., Gutmann, M., Abakumov, A. M., D’yachenko, O. G., Antipov, E. V., Lebedev, O. I., Van Tendeloo, G. (2000) Structural and magnetic properties of the colossal magnetoresistance perovskite La0.85Ca0.15MnO3, Physical Review B 61, 8941–8949.
Biotteau, G., Hennion, M., Moussa, F., Rodriguez-Carvajal, J., Pinsard, L., Revcolevschi, A., Mukovskii, Y. M., Shulyatev, D. (2001) Approach to the metal-insulator transition in Lal-xCaxMnO3 (0.2≤x≤0.5): magnetic inhomogeneity and spin-wave anomaly, cond-matt/0101414.
Okuda, T., Tomioka, Y., Asamitsu, A., Tokura, Y. (2000) Low-temperature properties of La1- xCaxMnO3 single crystals: Comparison with La1-xSrxMnO3, Physical Review B 61, 8009–8015.
Okimoto, Y., Katsufuji, T., Ishikawa, T., Urushibara, A., Arima, T., Tokura, Y. (1995) Anomalous Variation of Optical Spectra with Spin Polarization in Double-Exchange Ferromagnet: La1-xSrxMnO3, Physical Review Letters 75, 109–112.
Tokura, Y., Nagaosa, N. (2000) Orbital Physics in Transition-Metal Oxides, Science 288, 462–467.
Allodi, G., De Renzi, R., Licci, F., Pieper, M. W. (1998) First Order Nucleation of Charge Ordered Domains in La0.5Ca0.5MnO3 Detected by 139La and 55Mn NMR, Physical Review Letters 81, 4736–4739.
Papavassiliou, G., Fardis, M., Belesi, M., Pissas, M., Panagiotopoulos, I., Kallias, G., Niarchos, D., Dimitropoulos, C., Dolinsek, J. (1999) Polarons and phase separation in lanthanum-based manganese perovskites: A 139La and 55Mn NMR study, Physical Review B 59, 6390–6394.
Weisman, I. D., Swrtzendruber, L. J., Bennet, L. H., (1973) Techniques of Metal Research, Volume VI, John Wiley & Sons, New York.
Papavassiliou, G., Belesi, M., Fardis, M., Dimitropoulos, C. (2001) 139La NMR investigation of quasi-static orbital ordering in La1-xCaxMnO3 0.1≤x≤0.2, submitted to Physical Review Letters.
Curro, N. J., Hammel, P. C., Suh, B. J., Hücker, M., Büchner, B., Ammerahl, U., Revcolevschi, A. (2000) Inhomogeneous Low Frequency Spin Dynamics in La1.65Eu0.2Sr0.15CuO4, Physical Review Letters 85, 642–645.
Chen, M. C., Slichter, C. P. (1983) Zero-field NMR study on a spin-glass: Iron-doped 2H—niobium diselenide, Physical Review B 27, 278–292.
Hunt, A. W., Singer, P. M., Thurber, K. R., Imai, T. (1999) 63Cu NQR Measurement of Stripe Order Parameter in La2-xSrxCuO4 Physical Review Letters 82, 4300–4003.
Pissas, M., Kallias, G. (2000), unpublished results.
Roy, M., Mitchell, J. F., Ramirez, A. P., Schiffer P. (1998) Do**-induced transition from double exchange to charge order in La1-xCaxMnO3 near x = 0.50, Physical Review B 58, 5185–5188.
Maezono, R., Ishihara, S., Nagaosa, N. (1998) Orbital polarization in manganese oxides, Physical Review B 57, R13993–13996.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2002 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Papavassiliou, G., Belesi, M., Fardis, M., Dimitropoulos, C., Pattabiraman, M., Rangarajan, G. (2002). Orbital Order and Orbital Fluctuations in Colossal Magnetoresistive Manganites. An Investigation with 55Mn and 139La NMR. In: Fraissard, J., Lapina, O. (eds) Magnetic Resonance in Colloid and Interface Science. NATO Science Series, vol 76. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0534-0_18
Download citation
DOI: https://doi.org/10.1007/978-94-010-0534-0_18
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-0787-3
Online ISBN: 978-94-010-0534-0
eBook Packages: Springer Book Archive