Ferromagnetism and ferroelectricity in highly resistive Pb(0.7)Sr(0.3)(Fe(0.012)Ti(0.988))O(3) nanoparticles and its conduction by variable-range-hopping mechanism | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

1747470

Reference Type

Journal Article

Title

Ferromagnetism and ferroelectricity in highly resistive Pb(0.7)Sr(0.3)(Fe(0.012)Ti(0.988))O(3) nanoparticles and its conduction by variable-range-hopping mechanism

Author(s)

Verma, KC; Singh, M; Kotnala, RK; Negi, NS

Year

2008

Is Peer Reviewed?

Yes

Journal

Applied Physics Letters
ISSN: 0003-6951
EISSN: 1077-3118

Volume

Issue

DOI

10.1063/1.2973400

Web of Science Id

WOS:000259010300055

Abstract

The enhancement in ferromagnetism and ferroelectricity at room temperature for Pb(0.7)Sr(0.3)(Fe(0.012)Ti(0.988))O(3) (PSFT) nanoparticles is proved by magnetization and polarization hysteresis loop. The x-ray diffraction and micrograph show that the PSFT nanoparticles have distorted tetragonal single phase, and their average particle's size is 8 nm. The effect of Sr content reduces the particle size, and hence the multiferroic system becomes more resistive, which dominates the superparamagnetic/paraelectric relaxation. The variable-range-hopping conduction mechanism explained the high resistivity of PSFT nanoparticles, which suggests that the room temperature movement of electrons involves short-range order through defect states. (C) 2008 American Institute of Physics.