Investigation of short range charge and spin correlation in Pr{sub 0.67}Ca{sub 0.33}MnO{sub 3} nanoparticles

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4917695· OSTI ID:22490250

Mukhopadhyay, Soumik ^[1]

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1. Department of Physics, Indian Institute of Technology, Kanpur 208016 (India)

The particle size effects on charge and spin correlation were studied for Pr{sub 0.67}Ca{sub 0.33}MnO{sub 3}(PCMO) by Electron Paramagnetic Resonance spectroscopy. Magnetization measurements suggests long range charge/orbital ordering (CO/OO) in bulk Pr{sub 0.67}Ca{sub 0.33}MnO{sub 3} at T ∼230 K and antiferromagnetic (AFM) ordering at T∼140K. With the reduction of particle size, CO is suppressed, AFM ordering gives way to ferromagnetic (FM) ordering. We find that with the reduction of particle size in Pr{sub 0.67}Ca{sub 0.33}MnO{sub 3} nanoparticles, the short range correlation in charge and associated spin degrees of freedom also gets suppressed.

• OSTI ID: 22490250
• Journal Information: AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTROSCOPY
ANTIFERROMAGNETISM
ATOMIC FORCE MICROSCOPY
CALCIUM COMPOUNDS
CARBON MONOXIDE
CORRELATIONS
DEGREES OF FREEDOM
ELECTRON SPIN RESONANCE
MAGNETIZATION
MANGANATES
NANOPARTICLES
PARTICLE SIZE
PRASEODYMIUM COMPOUNDS
REDUCTION
SPIN