Results 161 to 170 of about 1,573 (211)

Structure and magnetoresistive properties in La–manganite thin films

Journal of Applied Physics, 1997
This study investigates the structure of perovskite thin films and its influence on their colossal magnetoresistance (CMR) properties. Epitaxial thin films of perovskite manganites La1−xBxMnO3−δ (B=Ca,Sr) were prepared on SrTiO3 (100) substrates using on- and off-axis pulsed laser deposition (PLD) techniques.
Gommert, Erik, Cerva, H., Rucki, A., Helmolt, R. v., Wecker, J., Kuhrt, C., Samwer, Konrad   +6 more
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Piezoresistivity in Films of Nanocrystalline Manganites

Journal of Nanoscience and Nanotechnology, 2007
Rare earth manganites having perovskite structure are susceptible to lattice strain. So far most investigations have been done with hydrostatic pressure or biaxial strain. We have observed that hole doped rare-earth manganites, which are known to display colossal magnetoresistance (CMR) also show change in its resistance under the influence of uniaxial
Sarkar, Jayanta, Raychaudhuri, AK
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Anisotropic magnetoresistance in manganite films

Journal of Magnetism and Magnetic Materials, 2004
Abstract Ferromagnetic manganites show a colossal magnetoresistance (CMR) close to their Curie temperature. This large CMR does not saturate and makes the study of anisotropic magnetoresistance (AMR) difficult. In this paper we study the AMR of an La0.7Sr0.3MnO3 film epitaxially grown on SrTiO3 substrates.
E. Favre-Nicolin, L. Ranno
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Strain Effect in Cation Disorder Manganite Films

Journal of Superconductivity and Novel Magnetism, 2010
Y and Sr co-doped La2/3Ca1/3MnO3 films with different A-site cation disorder were deposited on Yttrium-stabilized ZrO2 (YSZ) single crystal substrate by modified off-axis rf magnetron sputtering technology. The influences of A-site cation disorder and biaxial strain on the surface morphologies and transport properties are discussed in detail.
Wu, XS, Jia, QJ, Zhang, AM, Cai, HL, Wang, ZH, Gao, J   +5 more
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Direct Observation of Percolation in a Manganite Thin Film

Science, 2002
Upon cooling, the isolated ferromagnetic domains in thin films of La 0.33 Pr 0.34 Ca 0.33 MnO 3 start to grow and merge at the metal-insulator transition temperature T P1 , leading to a steep drop in ...
Liuwan, Zhang, Casey, Israel, Amlan, Biswas, R L, Greene, Alex, de Lozanne   +4 more
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Effects of film thickness on manganite film-based heterjunctions

Applied Physics Letters, 2009
Effects of film thickness on interfacial barrier have been studied for the La0.67Ca0.33MnO3/SrTiO3:Nb and La0.67Sr0.33MnO3/SrTiO3:Nb junctions. In addition to the evolution of the transport behavior from electron tunneling to thermionic emission, increase in film thickness from ∼5 to ∼50 nm causes a significant growth of interfacial barrier as revealed
W. M. Lü, A. D. Wei, J. R. Sun, Y. Z. Chen, B. G. Shen   +4 more
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Acoustoelectric currents in manganite thin films

Physica C: Superconductivity, 2003
Abstract Recently an anomalous acoustoelectrical (AE) effect produced by surface acoustic waves (SAW) in thin La0.67Ca0.33MnO3 films deposited on a piezoelectric LiNbO3 substrate was discovered [Phys. Rev. Lett. 87 (2001) 146602]. The SAW, launched along the distinct crystallographic axis (+z) of the structure, induces a dc current IAE in the film ...
K. Dyakonov, A. Goltsev, L. Kulakova, E. Yakhkind, V. Popov, A.V. Abal’oshev, V.P. Dyakonov, P. Gierłowski, A. Klimov, S.J. Lewandowski, H. Szymczak   +10 more
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Magnetoresonance EMF in thin manganite films

Journal of Experimental and Theoretical Physics, 2014
The effect of magnetoresonance emf (MREMF) in thin epitaxial films of rare-earth manganites La0.67Sr0.33MnO3 is detected and investigated. The effect is manifested in the occurrence of a constant voltage under the action of microwave pumping in magnetic fields corresponding to ferromagnetic resonance conditions.
V. A. Atsarkin, B. V. Sorokin
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Magnetic after-effect in manganite films

Journal of Magnetism and Magnetic Materials, 2001
Abstract The time dependence of the magnetic and transport properties on La 0.6 Sr 0.4 MnO 3 films and bulk samples has been studied through magnetization and resistivity measurements. A magnetic after-effect has been observed in all samples. At low temperatures, the low-field magnetization, can be described by the function M(t)=M c +M
M. Sirena, L.B. Steren, J. Guimpel
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Preparation and properties of bilayer manganite films

Physica B: Condensed Matter, 2003
Abstract A bilayer manganite film La 2−2 x Sr 1+2 x Mn 2 O 7 ( x =0.32) was successfully prepared by pulsed laser deposition. By controlling the parameters of deposition, the fabricated films are of single phase and grown well on two kinds of substrates with different lattice constants.
Cha, L., Zhang, P., Habermeier, H.
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