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Colossal Magnetoresistance in Thick La0.7Ca0.3MnO3 Films

  • Randolph E. Treece (a1), P. Dorsey (a1), M. Rubinstein (a1), J. M. Byers (a1), J. S. Horwitz (a1), E. Donovan (a1) and D. B. Chrisey (a1)...

Abstract

Thick films (0.6 and 2.0 μm) of the colossal magnetoresistance (CMR) material, La0.7Ca0.3MnO3 (LCMO), have been grown by pulsed laser deposition (PLD). The films were grown from single-phase LCMO targets in 100 mTorr 02 pressures and the material deposited on (100) LaAlO3 substrates at deposition temperatures of 800°C. The deposited films were characterized by X-ray diffraction (XRD), magnetic field-dependent resistivity, and Rutherford backscattering spectroscopy (RBS). The LCMO films were shown by XRD to adopt an orthorhombic structure. Brief post-deposition annealing led to ~50,000% and ~12,000% MR effect in the 0.6 μm and 2.0 μm films, respectively.

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1. Hemlot, R. von, Wecker, J., Holzapfel, B., schultz, L., and Samwer, K., Phys. Rev. Lett. 71, 2331 (1993).
2. Chahara, K., Ohno, T., Kasai, M., and Kozono, Y., Appl. Phys. Lett. 63, 1990 (1993).
3. Jin, S., Tiefel, T. H., McCormack, M., Fastnacht, R. A., Ramesh, R., and Cohen, L. H., Science 264, 413, (1994); M. McCormack, S. Jin, T. H. Tiefel, R. M. Fleming, Julia M. Phillips, and R. Ramesh, Appl. Phys. Lett. 64, 3015 (1994).
4. Jin, S., McCormack, M., Tiefel, T. H., Ramesh, R., J. Appl. Phys. 76, 6929 (1994).
5. Xiong, G. C., Li, Q., Ju, H. L., Mao, S. N., Senapati, L., Xi, X. X., Greene, R. L., and Venkatesan, T., Appl. Phys. Lett. 66, 1427 (1995).
6. Powder Diffraction File (Joint Committee on Powder Diffraction Standards-International Center for Diffraction Data, Swarthmore, PA, 1986) file no. 351353 (LaMnO3).
7. Yakel, H. L., Acta. Cryst. 8, 394 (1955).

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