Double peak behavior of resistivity curves in Cd doped LaMnO3 perovskite systems

G. Narsinga Rao; Saibal Roy; R. C. Yang; J. W. Chen

doi:10.1016/S0304-8853(02)01343-4

Double peak behavior of resistivity curves in Cd doped LaMnO₃ perovskite systems

G. Narsinga Rao
, Saibal Roy
, R. C. Yang
, J. W. Chen

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of Cd doping on transport, magnetotransport, and magnetic properties has been investigated in the perovskite La_1-xCd_xMnO₃ (0≤x≤0.5) systems. The ρ(T) curves exhibit a sharp metal insulator transition (T_p1), which is close to paramagnetic to ferromagnetic transition (T_c) obtained from M-T curves for all samples. In addition, ρ(T) curves for Cd doped samples exhibit another broad transition (T_P2) below T_p1. This transition becomes more prominent and the transition temperature (T_p2) shifts to lower temperature with increasing Cd content. Such double peak behavior in the ρ(T) curve is attributed to the phase separation between the ferromagnetic metallic phases and the ferromagnetic insulating phases induced by the electronic inhomogeneity in the samples.

Original language	English
Pages (from-to)	375-379
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	260
Issue number	3
DOIs	https://doi.org/10.1016/S0304-8853(02)01343-4
Publication status	Published - Apr 2003
Externally published	Yes

Keywords

A. Magnetically ordered materials
D. Electric transport
D. Magnetoresistance

Access to Document

10.1016/S0304-8853(02)01343-4

Cite this

@article{e09ac977a51d4979824a67be0316dc40,

title = "Double peak behavior of resistivity curves in Cd doped LaMnO3 perovskite systems",

abstract = "The effect of Cd doping on transport, magnetotransport, and magnetic properties has been investigated in the perovskite La1-xCdxMnO3 (0≤x≤0.5) systems. The ρ(T) curves exhibit a sharp metal insulator transition (Tp1), which is close to paramagnetic to ferromagnetic transition (Tc) obtained from M-T curves for all samples. In addition, ρ(T) curves for Cd doped samples exhibit another broad transition (TP2) below Tp1. This transition becomes more prominent and the transition temperature (Tp2) shifts to lower temperature with increasing Cd content. Such double peak behavior in the ρ(T) curve is attributed to the phase separation between the ferromagnetic metallic phases and the ferromagnetic insulating phases induced by the electronic inhomogeneity in the samples.",

keywords = "A. Magnetically ordered materials, D. Electric transport, D. Magnetoresistance",

author = "\{Narsinga Rao\}, G. and Saibal Roy and Yang, \{R. C.\} and Chen, \{J. W.\}",

year = "2003",

month = apr,

doi = "10.1016/S0304-8853(02)01343-4",

language = "English",

volume = "260",

pages = "375--379",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - Double peak behavior of resistivity curves in Cd doped LaMnO3 perovskite systems

AU - Narsinga Rao, G.

AU - Roy, Saibal

AU - Yang, R. C.

AU - Chen, J. W.

PY - 2003/4

Y1 - 2003/4

N2 - The effect of Cd doping on transport, magnetotransport, and magnetic properties has been investigated in the perovskite La1-xCdxMnO3 (0≤x≤0.5) systems. The ρ(T) curves exhibit a sharp metal insulator transition (Tp1), which is close to paramagnetic to ferromagnetic transition (Tc) obtained from M-T curves for all samples. In addition, ρ(T) curves for Cd doped samples exhibit another broad transition (TP2) below Tp1. This transition becomes more prominent and the transition temperature (Tp2) shifts to lower temperature with increasing Cd content. Such double peak behavior in the ρ(T) curve is attributed to the phase separation between the ferromagnetic metallic phases and the ferromagnetic insulating phases induced by the electronic inhomogeneity in the samples.

AB - The effect of Cd doping on transport, magnetotransport, and magnetic properties has been investigated in the perovskite La1-xCdxMnO3 (0≤x≤0.5) systems. The ρ(T) curves exhibit a sharp metal insulator transition (Tp1), which is close to paramagnetic to ferromagnetic transition (Tc) obtained from M-T curves for all samples. In addition, ρ(T) curves for Cd doped samples exhibit another broad transition (TP2) below Tp1. This transition becomes more prominent and the transition temperature (Tp2) shifts to lower temperature with increasing Cd content. Such double peak behavior in the ρ(T) curve is attributed to the phase separation between the ferromagnetic metallic phases and the ferromagnetic insulating phases induced by the electronic inhomogeneity in the samples.

KW - A. Magnetically ordered materials

KW - D. Electric transport

KW - D. Magnetoresistance

UR - https://www.scopus.com/pages/publications/0038348744

U2 - 10.1016/S0304-8853(02)01343-4

DO - 10.1016/S0304-8853(02)01343-4

M3 - Article

AN - SCOPUS:0038348744

SN - 0304-8853

VL - 260

SP - 375

EP - 379

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 3

ER -

Double peak behavior of resistivity curves in Cd doped LaMnO₃ perovskite systems

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this