Lattice effect in Pr doped La Sr Mn O perovskite

ZB Guo, N Zhang, WP Ding, W Yang, JR Zhang… - Solid state …, 1996 - Elsevier
We have measured resistivity, magnetization and magnetoresistance in polycrystalline La0.
7− xPrxSr0. 3MnO3 with fixed carrier concentration. With decreasing the average ionic …

Electrical resistivity anomalies in the perovskites La1− xSrxMnO3

A Chainani, M Mathew, DD Sarma, I Das… - Physica B: Condensed …, 1993 - Elsevier
The temperature dependence of the resistivity of La 1− x Sr x MnO 3 indicates that the
samples are semiconducting for x= 0.0 and 0.1, but metallic for x⩾ 0.2 at lower temperatures …

Low field magnetoresistance in La0.67Sr0.33-x x MnO3 perovskite system

L Laroussi, JC Joubert, E Dhahri, J Pierre… - Phase Transitions: A …, 1999 - Taylor & Francis
We have studied magnetization, resistivity and magnetoresistance in polycrystalline La0.
67Sr0. 33-x□ xMnO3 samples where 0≤ x≤ 0.33. With varying x, powder X-ray diffraction …

Enhancement of the magnetoresistance due to structural transition in Mg‐doped perovskite Mn oxides

A Anane, C Dupas, K Le Dang, JP Renard… - Applied physics …, 1996 - pubs.aip.org
Substitution of magnesium for manganese in mixed perovskite La1− x Sr x MnO3was found
to reduce the electrical conductivity and the Curie temperature T c. A remarkable jump in the …

Electrical properties of perovskite

Z Guo, J Zhang, N Zhang, W Ding, H Huang… - Applied physics …, 1997 - pubs.aip.org
We present the electrical properties of polycrystalline La 0.7− x Pr x Sr 0.3 MnO 3 in which
the average ionic radius of the A site is systematically varied while keeping the carrier …

Electrical and magnetic properties of non-stoichiometric (La0. 8Sr0. 2) 1− xMnO3 perovskites

JY Yu, SY Zhang, GH Liu, HY Wu, L Wang - Solid state communications, 2007 - Elsevier
The structure, transport and magnetic properties of (La0. 8Sr0. 2) 1− xMnO3 (0≤ x≤ 0.30)
polycrystalline perovskite manganites have been investigated. For all the samples the Curie …

Transport properties and magnetic behaviour of La1-xSrxMnO3 single crystals

A Anane, C Dupas, K Le Dang… - Journal of Physics …, 1995 - iopscience.iop.org
A semiconductor-metal transition occurring just below the Curie temperature TC was
observed in single crystals of perovskite La 1-x Sr x MnO 3 for x> or= 0.175. For x< or= 0.15 …

Electrical properties of La {sub 0.7 {minus} x} Pr {sub x} Sr {sub 0.3} MnO {sub 3} perovskite

Z Guo, J Zhang, N Zhang, W Ding, H Huang, Y Du - Applied Physics Letters, 1997 - osti.gov
We present the electrical properties of polycrystalline La {sub 0.7 {minus} x} Pr {sub x} Sr
{sub 0.3} MnO {sub 3} in which the average ionic radius of the A site {l_angle} r {sub …

Cr doping in the La1. 2Sr1. 8Mn2O7 system

R Gundakaram, JG Lin, FY Lee, MF Tai… - Journal of Physics …, 1999 - iopscience.iop.org
The effect of doping Cr in the Mn site of the La 1.2 Sr 1.8 Mn 2 O 7 system has been studied.
Addition of Cr modifies the transport and magnetic properties of the parent phase. With …

Effects of inhomogeneous oxygen content in (La, Gd) 0.7 Ca0. 3MnO3+ δ perovskites

JR Sun, GH Rao, YZ Zhang - Applied physics letters, 1998 - pubs.aip.org
Magnetoresistance properties of compounds with the same formula La0. 7xGdxCa0. 3MnO3
x 0, 0.04 but synthesized by the solid-state reaction method from different starting materials …