TITLE

Control of the colossal magnetoresistance by strain effect in Nd[sub 0.5]Ca[sub 0.5]MnO[sub 3] thin films

AUTHOR(S)
Rauwel Buzin, E.; Prellier, W.; Simon, Ch.; Mercone, S.; Mercey, B.; Raveau, B.; Sebek, J.; Hejtmanek, J.
PUB. DATE
July 2001
SOURCE
Applied Physics Letters;7/30/2001, Vol. 79 Issue 5
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Thin films of Nd[sub 0.5]Ca[sub 0.5]MnO[sub 3] manganites with colossal magnetoresistance (CMR) properties have been synthesized by the pulsed-laser deposition technique on (100)-(SrTiO[sub 3]). The lattice parameters of these manganites and correlatively their CMR properties can be controlled by the substrate temperature T[sub S]. The maximum CMR effect at 50 K, calculated as the ratio ρ(H=0T)/ρ(H=7T) is 10[sup 11] for a deposition temperature of T[sub S]=680 °C. Structural studies show that the Nd[sub 0.5]Ca[sub 0.5]MnO[sub 3] film is single phase, [010]-oriented and has a pseudocubic symmetry of the perovskite subcell with a=3.77 Å at room temperature. We suggest that correlation between lattice parameters, CMR, and substrate temperature T[sub S] result mainly from substrate-induced strains which can weaken the charge-ordered state at low temperature. © 2001 American Institute of Physics.
ACCESSION #
4864265

 

Related Articles

  • Low-field microwave magnetoabsorption in manganites. Tyagi, S.D.; Lofland, S.E. // Applied Physics Letters;5/13/1996, Vol. 68 Issue 20, p2893 

    Examines the magnetic field dependence of microwave absorption in thin film and bulk samples of manganites. Application of cavity configuration; Magnetic field sensitivity of the microwave response of magnetoresistance materials; Measurement of low-field direct current magnetization and...

  • Low field magnetoresistance at the metal–insulator transition in epitaxial manganite thin films. de Andre´s, A.; Taboada, S.; Colino, J. M.; Ramı´rez, R.; Garcı´a-Herna´ndez, M.; Martı´nez, J. L. // Applied Physics Letters;7/8/2002, Vol. 81 Issue 2, p319 

    We present a study of the magnetotransport behavior around To of epitaxial La[sup 0.7]Ca[sup 0.3]MnO[sub 3] thin films with controlled chemical defects introduced in order to change the electron-lattice coupling (λ). We found unexpected enhancement of the very low field (below 250 Oe)...

  • Strain-induced anisotropic low-field magnetoresistance of La–Sr–Mn–O thin films. Choi, Kyung-Ku; Taniyama, Tomoyasu; Yamazaki, Yohtaro // Journal of Applied Physics;12/15/2001, Vol. 90 Issue 12, p6145 

    Sputtered La[sub 0.71]Sr[sub 0.29]Mn[sub 1.01]O[sub 3 - δ] (LSMO) thin films on (001) SrTiO[sub 3], polycrystalline yttria-stabilized zirconia (YSZ) and (11&2macr;0) sapphire substrates demonstrate the distinctive low-field magnetoresistance (MR) correlated with the microstructure and the...

  • Temperature and magnetic field dependent transport anisotropies in La[sub 0.7]Ca[sub 0.3]MnO[sub 3] films. O'Donnell, J.; Eckstein, J. N.; Rzchowski, M. S. // Applied Physics Letters;1/10/2000, Vol. 76 Issue 2, p218 

    We report the temperature and field dependence of anisotropic magnetoresistance (AMR) in fully strained tetragonal thin films of the colossal magnetoresistance manganite La[sub 0.7]Ca[sub 0.3]MnO[sub 3]. The behavior of the AMR is very different from that found in conventional metallic alloys....

  • High-Field Magnetoresistance of La0.67Sr0.33MnO3 Thin Films Deposited on LiNbO3 Substrates. Gomes, I. T.; Pereira, A. M.; Ventura, J.; Carpinteiro, F.; Moreira, J. M.; Ara�jo, J. P.; Barbosa, J.; Almeida, B. G. // Journal of Low Temperature Physics;Apr2010, Vol. 159 Issue 1/2, p156 

    Colossal magnetoresistive manganites have been widely studied due to their potential use in sensor and device applications. In this work, La0.67Sr0.33MnO3 thin films were deposited by pulsed laser ablation on LiNbO3 substrates and magnetoresistance measurements were performed using pulsed...

  • 1/f electrical noise in epitaxial thin films of the manganite oxides La0.67Ca0.33MnO3 and Pr0.67Sr0.33MnO3. Rajeswari, M.; Goyal, A.; Raychaudhuri, A. K.; Robson, M. C.; Xiong, G. C.; Kwon, C.; Ramesh, R.; Greene, R. L.; Venkatesan, T.; Lakeou, S. // Applied Physics Letters;8/5/1996, Vol. 69 Issue 6, p851 

    We report measurements of 1/f electrical noise in two hole doped manganite perovskite oxides, La0.67Ca0.33MnO3 and Pr0.67Sr0.33MnO3, which exhibit colossal magnetoresistance. The noise magnitude represented by the Hooge parameter is nearly 8 orders of magnitude larger than that observed in...

  • Rotation of the magnetic easy axis in La0.67Sr0.33MnO3 thin film on NdGaO3(112). Nishikawa, Hiroaki; Houwman, Evert; Boschker, Hans; Mathews, Mercy; Blank, Dave H. A.; Rijnders, Guus // Applied Physics Letters;1/26/2009, Vol. 94 Issue 4, pN.PAG 

    The in-plane magnetic anisotropy is studied for pseudocubic {011}pc oriented La0.67Sr0.33MnO3 (LSMO) thin film grown on orthorhombic NdGaO3(NGO)(112)o (the subindices “pc” and “o” indicate the pseudocubic and orthorhombic lattice structure, respectively). The direction of...

  • Anomalous Hall resistivity due to grain boundary in manganite thin films. Taniyama, T.; Hamaya, K.; Kitamoto, Y.; Yamazaki, Y. // Journal of Applied Physics;5/15/2003, Vol. 93 Issue 10, p8107 

    Anomalous Hall resistivities of polycrystalline manganite thin films with different grain sizes are reported. Positive anomalous Hall coefficients due to grain boundaries are clearly observed besides a negative contribution in the bulk manganite. The positive contribution becomes pronounced with...

  • Anisotropic magnetoresistance in colossal magnetoresistive La1-xSrxMnO3 thin films. Yau, Jeng-Bang; Hong, X.; Posadas, A.; Ahn, C. H.; Gao, W.; Altman, E.; Bason, Y.; Klein, L.; Sidorov, M.; Krivokapic, Z. // Journal of Applied Physics;Nov2007, Vol. 102 Issue 10, p103901 

    We report on magnetic field and temperature-dependent measurements of the anisotropic magnetoresistance (AMR) in epitaxial La1-xSrxMnO3 (LSMO) thin films. While in 3d ferromagnetic alloys increasing the magnetization, either by reducing the temperature or increasing the magnetic field, increases...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics