Disorder enhanced intrinsic electroresistance in Sm0.60Sr0.40Mn1-xFexO3

Mahmud, S. T.; Saber, M. M.; Alagoz, H. S.; Biggart, K.; Bouveyron, R.; Khan, Mahmud; Jung, J.; Chow, K. H.
June 2012
Applied Physics Letters;6/4/2012, Vol. 100 Issue 23, p232406
Academic Journal
The intrinsic electroresistance (ER) of polycrystalline Sm0.60Sr0.40Mn1-xFexO3 (0 ≤ x ≤ 0.02) have been investigated by magnetotransport measurements. It is found that the ER increases with x while it is suppressed by a magnetic field. These observations imply that the ER increases dramatically with the inhomogeneity in the samples. The possible mechanisms responsible for the observed behavior are discussed.


Related Articles

  • Comment on ‘Resistivity Minimum Behavior and Weak Magnetic Disorder Characteristics in La2/3Ca1/3MnO3 Manganites’. Rozenberg, E. // Journal of Superconductivity & Novel Magnetism;Feb2010, Vol. 23 Issue 2, p183 

    In a recent paper (Chen et al. in J. Supercond. Nov. Magn. 22:465, ) Zhenping Chen et al. reported measurements of the electrical resistivity ( ρ) and magnetization versus temperature ( T) and magnetic field ( H) on polycrystalline manganite compound La2/3Ca1/3MnO3. In particular, the ρ(...

  • Angular dependence of the magnetoresistance in Y3/4Lu1/4Ba2Cu3O7-CuO composites at 77 K. Balaev, D. A.; Prus, A. G.; Shaikhutdinov, K. A.; Petrov, M. I. // Technical Physics Letters;Aug2006, Vol. 32 Issue 8, p677 

    The angular dependence of the magnetoresistance of polycrystalline Y3/4Lu1/4Ba2Cu3O7-CuO composites has been studied. These composites represent a system of Josephson junctions and exhibit a large magnetoresistance at 77 K. In addition to the isotropic component, there is the angle-dependent...

  • Evidence of the magnetoimpedance effect up to microwave frequencies in polycrystalline La0.7Sr0.3MnO3 films. Stanescu, D.; Xavier, P.; Richard, J.; Dubourdieu, C. // Journal of Applied Physics;4/1/2006, Vol. 99 Issue 7, p073707 

    We present broadband measurements of the magnetoimpedance of polycrystalline La0.7Sr0.3MnO3 films grown on silicon as a function of three parameters: (i) the frequency (0–1 GHz), (ii) the temperature (4–275 K), and (iii) the applied magnetic field (0–6 T). In this paper it...

  • Improvement of the intergranular pinning energy in uniaxially compacting (Bi-Pb)2Sr2Ca2Cu3O10+δ ceramic samples. Govea-Alcaide, E.; García-Fornaris, I.; Muné, P.; Jardim, R. F. // European Physical Journal B -- Condensed Matter;Aug2007, Vol. 58 Issue 4, p373 

    Measurements of the electrical resistivity as a function of temperature, ρ(T), for different values of applied magnetic field, Ba (0 ≤ Ba ≤ 50 mT), were performed in polycrystalline samples of Bi1.65Pb0.35Sr2Ca2 Cu3O10+δ subjected to different uniaxial compacting pressure...

  • Magnetic Flux Annihilation Waves in Inhomogeneous High-Temperature Superconductors. Rudnev, I.A.; Khodot, A.E.; Eremin, A.V.; Mikha&icaron;lov, B.P. // Journal of Experimental & Theoretical Physics;Jul2004, Vol. 99 Issue 1, p169 

    The process of magnetic field penetration into polycrystalline high-Tc superconductors of the YBa2Cu3O7 – x and Bi2Sr2Ca2Cu3O10 – x systems has been studied using traditional magnetooptical methods and scanning Hall probe microscopy. It is established that remagnetization of a...

  • Large magnetocaloric effect in a La0.7 Ca0.3 Mn0.3 single crystal. Manh-Huong Phan; Seong-Cho Yu; Nam Hwi Hur; Yoon-Hee Jeong // Journal of Applied Physics;7/15/2004, Vol. 96 Issue 2, p1154 

    We report the results of a thorough study of the magnetocaloric effect (MCE) in a La0.7Ca0.3MnO3 single crystal, which undergoes a first-order magnetic phase transition at ∼227 K. The magnetic entropy change ΔSM and the adiabatic temperature change ΔTad reach, respectively,...

  • Dual stage resistive transition of MgB2 evidenced by noise analysis. Andreoli, V.; Carbone, A.; Mazzetti, P.; Gandini, C.; Masoero, A.; Monticone, E. // Journal of Applied Physics;Jul2011, Vol. 110 Issue 1, p013909 

    The resistive transition of polycrystalline superconducting MgB2 films is studied by means of an extensive set of stationary noise measurements, going from the very beginning of the transition to its final point, where the normal state is reached, either with and without magnetic field. The...

  • Superconductivity of FeSrYCuO. Yamaguchi, K.; Kinoshita, K.; Hata, Y.; Mochiku, T.; Yasuoka, H. // Journal of Superconductivity & Novel Magnetism;May2013, Vol. 26 Issue 5, p1887 

    Resistivity measurements of polycrystalline FeSrYCuO under magnetic fields up to 160 kOe were made to study the superconductivity of FeSrYCuO in detail. The resistivity began to decrease at 64 K and dropped to zero at 38 K under zero magnetic field. The superconductivity in inter grain was...

  • Structural, Electrical and Magnetic Behaviour of FeTeSe Superconductor. Zargar, Rayees; Pal, Anand; Hafiz, A.; Awana, V. // Journal of Superconductivity & Novel Magnetism;Apr2014, Vol. 27 Issue 4, p897 

    We report the synthesis as well as structural and physical properties of the bulk polycrystalline FeTe and FeTeSe compounds. These samples are synthesised by the solid state-reaction method via vacuum encapsulation. Both studied compounds are crystallized in a tetragonal phase with space group...


Read the Article


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

Try another library?
Sign out of this library

Other Topics