Low field magnetotransport in manganites

PK Siwach, HK Singh… - Journal of Physics …, 2008 - iopscience.iop.org
The perovskite manganites with generic formula RE 1− x AE x MnO 3 (RE= rare earth, AE=
Ca, Sr, Ba and Pb) have drawn considerable attention, especially following the discovery of …

An overview of the magnetoresistance phenomenon in molecular systems

H Gu, X Zhang, H Wei, Y Huang, S Wei… - Chemical Society …, 2013 - pubs.rsc.org
In this review, the classification of magnetoresistance effects, the electrical conduction
mechanisms without and with magnetic field, and the spintronics are briefly summarized …

Effect of grain size modulation on the magneto- and electronic-transport properties of nanoparticles: The role of spin-polarized tunneling at the …

P Dey, TK Nath - Physical Review B—Condensed Matter and Materials …, 2006 - APS
We have investigated the effect of nanometric grain size on magneto-and electronic-
transport properties of single-phase, nanocrystalline, granular La 0.7 Ca 0.3 Mn O 3 …

Low-temperature resistivity minimum in ceramic manganites

E Rozenberg, M Auslender, I Felner… - Journal of Applied …, 2000 - pubs.aip.org
As with any material, the transport properties of doped manganites La1-xAxMnO3 A is a
divalent ion such as Ca, Sr, Ba, etc. differ markedly whether they are in singlecrystalline or …

Enhanced room-temperature magnetoresistance in La0. 7Sr0. 3MnO3-glass composites

S Gupta, R Ranjit, C Mitra, P Raychaudhuri… - Applied Physics …, 2001 - pubs.aip.org
In this letter, we report the improved magnetotransport properties of La0. 7Sr0. 3MnO3-
borosilicate glass composite with different weight percents of glass. All the composites …

Conduction channels and magnetoresistance in polycrystalline manganites

A De Andres, M Garcia-Hernandez, JL Martinez - Physical Review B, 1999 - APS
We have performed magnetic and transport measurements on several series of La 0.7 Ca
0.3 MnO 3 polycrystalline pellets and thin films. The aim is to discriminate the effects of …

Low-temperature resistivity minimum and weak spin disorder of polycrystalline in a magnetic field

Y Xu, J Zhang, G Cao, C Jing, S Cao - Physical Review B—Condensed Matter …, 2006 - APS
Low-temperature transport properties were systemically studied for the optimal magnetic
coupled polycrystalline La 2∕ 3 Ca 1∕ 3 Mn O 3 system under an applied magnetic field …

Low field magnetoresistance effects in fine particles of La0. 67Ca0. 33MnO3 perovskites

J Rivas, LE Hueso, A Fondado, F Rivadulla… - Journal of magnetism …, 2000 - Elsevier
In this work magnetic and magnetotransport experimental data in well-characterized small
particles of La0. 67Ca0. 33MnO3 are presented. Grain size reduction leads to a larger …

Oxygen-induced grain boundary effects on magnetotransport properties of

D Niebieskikwiat, A Caneiro, RD Sánchez… - Physical Review B, 2001 - APS
The magnetic, electric, and structural properties of polycrystalline samples of Sr 2 FeMoO 6+
δ with controlled oxygen content have been investigated for nominal values δ= 0 and 0.04 …

The effect of artificial grain boundaries on magneto-transport properties of charge ordered-ferromagnetic nanocomposites

K Das, B Satpati, I Das - RSC Advances, 2015 - pubs.rsc.org
Nanocomposites of charge ordered insulating Pr0. 67Ca0. 33MnO3 (PCMO) and
ferromagnetic metallic La0. 67Sr0. 33MnO3 (LSMO) nanoparticles have been prepared by …