Fe ion doping effect on electrical and magnetic properties of La 0.7Ca0.3Mn1-xFexO3 (0 ≤ x ≤ 1)

Neeraj Kumar; H. Kishan; A. Rao; V. P.S. Awana

doi:10.1016/j.jallcom.2010.04.187

Fe ion doping effect on electrical and magnetic properties of La _0.7Ca_0.3Mn_1-xFe_xO₃ (0 ≤ x ≤ 1)

Neeraj Kumar
, H. Kishan
, A. Rao
, V. P.S. Awana

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

79 Citations (Scopus)

Abstract

Here we report the structural, electrical and magnetic properties of Fe doped La_0.7Ca_0.3Mn_1-xFe_xO ₃ (LCMFO; 0 ≤ x ≤ 1) prepared by conventional solid state reaction method. Simulated data on XRD shows an increase in volume with an increase in Fe ion concentration. XPS supports that Fe³⁺ ions directly substitute Mn³⁺ ions. Shifting towards lower wave number and symmetric IR band structure confirms increase in volume and homogeneous distribution of Fe ions. Fe ion does not contribute in double-exchange (DE) conduction mechanism due to its stable half filled 3d orbital. The presence of Fe³⁺ ions encourages anti-ferromagnetism (AFM) generated by super-exchange interaction and suppress insulator-metal transition temperature (T_IM). Magnetic measurements show the existence of magnetic polarons supported by increase in volume of unit cell and deviation from Curie-Weiss law.

Original language	English
Pages (from-to)	283-288
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	502
Issue number	2
DOIs	https://doi.org/10.1016/j.jallcom.2010.04.187
Publication status	Published - 23-07-2010

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2010.04.187

Cite this

@article{3a5cd6fc975c428f8c497897640889c0,

title = "Fe ion doping effect on electrical and magnetic properties of La 0.7Ca0.3Mn1-xFexO3 (0 ≤ x ≤ 1)",

abstract = "Here we report the structural, electrical and magnetic properties of Fe doped La0.7Ca0.3Mn1-xFexO 3 (LCMFO; 0 ≤ x ≤ 1) prepared by conventional solid state reaction method. Simulated data on XRD shows an increase in volume with an increase in Fe ion concentration. XPS supports that Fe3+ ions directly substitute Mn3+ ions. Shifting towards lower wave number and symmetric IR band structure confirms increase in volume and homogeneous distribution of Fe ions. Fe ion does not contribute in double-exchange (DE) conduction mechanism due to its stable half filled 3d orbital. The presence of Fe3+ ions encourages anti-ferromagnetism (AFM) generated by super-exchange interaction and suppress insulator-metal transition temperature (TIM). Magnetic measurements show the existence of magnetic polarons supported by increase in volume of unit cell and deviation from Curie-Weiss law.",

author = "Neeraj Kumar and H. Kishan and A. Rao and Awana, \{V. P.S.\}",

year = "2010",

month = jul,

day = "23",

doi = "10.1016/j.jallcom.2010.04.187",

language = "English",

volume = "502",

pages = "283--288",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - Fe ion doping effect on electrical and magnetic properties of La 0.7Ca0.3Mn1-xFexO3 (0 ≤ x ≤ 1)

AU - Kumar, Neeraj

AU - Kishan, H.

AU - Rao, A.

AU - Awana, V. P.S.

PY - 2010/7/23

Y1 - 2010/7/23

N2 - Here we report the structural, electrical and magnetic properties of Fe doped La0.7Ca0.3Mn1-xFexO 3 (LCMFO; 0 ≤ x ≤ 1) prepared by conventional solid state reaction method. Simulated data on XRD shows an increase in volume with an increase in Fe ion concentration. XPS supports that Fe3+ ions directly substitute Mn3+ ions. Shifting towards lower wave number and symmetric IR band structure confirms increase in volume and homogeneous distribution of Fe ions. Fe ion does not contribute in double-exchange (DE) conduction mechanism due to its stable half filled 3d orbital. The presence of Fe3+ ions encourages anti-ferromagnetism (AFM) generated by super-exchange interaction and suppress insulator-metal transition temperature (TIM). Magnetic measurements show the existence of magnetic polarons supported by increase in volume of unit cell and deviation from Curie-Weiss law.

AB - Here we report the structural, electrical and magnetic properties of Fe doped La0.7Ca0.3Mn1-xFexO 3 (LCMFO; 0 ≤ x ≤ 1) prepared by conventional solid state reaction method. Simulated data on XRD shows an increase in volume with an increase in Fe ion concentration. XPS supports that Fe3+ ions directly substitute Mn3+ ions. Shifting towards lower wave number and symmetric IR band structure confirms increase in volume and homogeneous distribution of Fe ions. Fe ion does not contribute in double-exchange (DE) conduction mechanism due to its stable half filled 3d orbital. The presence of Fe3+ ions encourages anti-ferromagnetism (AFM) generated by super-exchange interaction and suppress insulator-metal transition temperature (TIM). Magnetic measurements show the existence of magnetic polarons supported by increase in volume of unit cell and deviation from Curie-Weiss law.

UR - https://www.scopus.com/pages/publications/77955177338

UR - https://www.scopus.com/pages/publications/77955177338#tab=citedBy

U2 - 10.1016/j.jallcom.2010.04.187

DO - 10.1016/j.jallcom.2010.04.187

M3 - Article

AN - SCOPUS:77955177338

SN - 0925-8388

VL - 502

SP - 283

EP - 288

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 2

ER -

Fe ion doping effect on electrical and magnetic properties of La _0.7Ca_0.3Mn_1-xFe_xO₃ (0 ≤ x ≤ 1)

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this