Enhanced magnetoresistance of La2∕3Ca1∕3MnO3∕CeO2 nanocystalline composites synthesized by polymer-network gel method

Abstract

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Low temperature magnetic and transport properties of LSMO–PZT nanocomposites

“…These results reported for other composites corroborates with this behavior. [47][48][49] The resistivity increased in an order of 10 2 as PZT concentration increased from 0% to 5%.…”

Broad temperature range low field magnetoresistance in La0.7Ca0.3MnO3:nano-ZnO composites

“…and even other manganite (LaMnO 3 , etc.) have recently been explored and the results have been encouraging [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Generally, composites are prepared under high temperature to obtain higher density, which leads to a new problem associated with the interfacial phase.…”

Synthesis and magnetoresistance properties of La<inf>2/3</inf>Ca<inf>1/3</inf>MnO<inf>3</inf>/MgO core-shell nanocomposites

“…The extrinsic intergranular MR is highly sensitive to a low external magnetic field and occurs over a wide temperature range below T C . The intergranular MR can be enhanced by introducing an insulating phase at the manganite grain boundaries [8][9][10][11][12]. The artificial insulation layer plays an important role in suppressing the ferromagnetic interaction between grains, and thus a small external magnetic field is expected to induce ferromagnetic alignment (parallel to the external field) of the grains, consequently resulting in enhanced low-field sensitivity of the tunneling transport of spin-polarized electrons.…”