Preparation of La{sub 1-x}Sr{sub x}MnO{sub 3} nanoparticles by sonication-assisted coprecipitation

Journal Article · Wed Jan 01 00:00:00 EST 2003 · Materials Research Bulletin

DOI:https://doi.org/10.1016/S0025-5408(02)01002-4· OSTI ID:20883124

Guangsheng, Pang; Xiaonong, Xu; Markovich, Vladimir; Avivi, Sigalit; Palchik, Oleg; Koltypin, Yuri; Gorodetsky, Gad; Yeshurun, Yosef; Buchkremer, Hans Peter; Gedanken, Aharon

La{sub 1-x}Sr{sub x}MnO{sub 3} (x=0.3) (LSM) nanoparticles were prepared by a sonication-assisted coprecipitation method. The coprecipitation reaction is carried out with ultrasound radiation. Lower sintering temperatures are required for the sonication-assisted product. Fully crystallized LSM with an average particle size 24 nm is obtained after the as-prepared mixture is annealed at 900 deg. C for 2 h. Magnetic properties indicate that the transition temperature from the paramagnetic to ferromagnetic state of the sample is quite sharp and occurs at 366 K for samples annealed for 2 h at 900 and 1100 deg. C.

• OSTI ID: 20883124
• Journal Information: Materials Research Bulletin, Vol. 38, Issue 1; Other Information: PII: S0025540802010024; Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
COPRECIPITATION
LANTHANUM OXIDES
MAGNETIC PROPERTIES
MANGANESE OXIDES
NANOSTRUCTURES
PARAMAGNETISM
PARTICLE SIZE
SINTERING
STRONTIUM OXIDES
TRANSITION TEMPERATURE