An investigation on the effect of Ti doping at the Mn site on structural magnetic and magnetocaloric properties of Nd0.5Ca0.5MnO3

Anand, Anitha; Devi, M. Manjula; Veena, R. K.; Veena, V. S.; Koshkid’ko, Yu. S.; Sagar, Sadia

doi:10.1016/j.materresbull.2021.111512

Cited by 7 publications

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“…The parent compound N exhibits a very high magnetoresistance at 223 K. Such huge magnetoresistance was already reported in similar manganite Sm 0.5 Ca 0.25 Sr 0.25 MnO 3 [11]. curve [8], these MR peaks do not have a magnetic origin.…”

Section: Resistivity and Magnetoresistance Analysissupporting

confidence: 68%

“…The high-purity precursors such as the oxides and carbonates of the constituent elements were thoroughly mixed under acetone medium for 9 hours; calcination of powder samples and sintering of pressed pellets were carried out at 900 and 1200 • C, respectively, for 24 hours. The detailed discussion on the preparation method and the structural analysis were already reported [5,8]. Resistance as a function of temperature was measured using Quantum design PPMS instrument, from which the corresponding resistivity is calculated from the dimensions of the sample.…”

Section: Methodsmentioning

confidence: 99%

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The Influence of Ti Doping at the Mn Site on Magnetoresistance and Thermopower Properties of Nd-=SUB=-0.5-=/SUB=-Ca-=SUB=-0.5-=/SUB=-MnO-=SUB=-3-=/SUB=-

Anand

Devi

Veena

et al. 2022

Physics of the Solid State

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Nd-Ca-based manganite Nd0.5Ca0.5MnO3 and 10% Ti-doped manganite Nd0.5Ca0.5Ti0.1Mn0.9O3 denoted by N and N0.1, respectively, were prepared using solid-state reaction method. Resistivity gets increased for the Ti-doped sample. The parent compound N has remarkably high magnetoresistance. The highest value of Seebeck coefficient for N is -97 μVK-1 at 143 K and for N0.1 is -207 μVK-1 at 203 K. Variable range hopping mechanism successfully explains the high temperature resistivity and thermopower data. Keywords: magnetoresistance, thermoelectric power, rare-earth based manganites, manganites.

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Section: Resistivity and Magnetoresistance Analysissupporting

confidence: 68%

Section: Methodsmentioning

confidence: 99%