Magnetic properties of La{sub 1−x}Sr{sub x}MnO{sub 3} nanoparticles prepared in a molten salt

Journal Article · Wed May 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4867958· OSTI ID:22273748

Kačenka, M.; Jirák, Z.; Maryško, M.; Žvátora, P. ^[1]; Vratislav, S. ^[2]; Lukeš, I. ^[3]

---

1. Institute of Physics, AS CR, Cukrovarnická 10, Praha 6, 162 00 (Czech Republic)
2. Faculty of Nuclear Sciences and Physical Engineering, CTU, Břehová 7, Praha 1, 115 19 (Czech Republic)
3. Faculty of Science, Charles University in Prague, Hlavova 8, Praha 2, 128 43 (Czech Republic)

Single phase La{sub 1−x}Sr{sub x}MnO{sub 3} nanoparticles (x = 0.18 − 0.37) are prepared by a novel way in molten NaNO{sub 2} at 500 °C. Their rhombohedral perovskite structure is confirmed by XRD patterns and exact chemical composition is determined by XRF (X-ray fluorescence) spectroscopy. The mean size of the as-prepared crystallites is of about 50 nm, the grains are rather separated and do not form sintering bridges that were typical for products synthesized by sol-gel routes followed by annealing. On the other hand, the synthesized nanoparticles exhibit rather low magnetization and decreased Curie temperature. Their neutron diffraction study indicates a complex magnetic ordering together with anomalously high atomic displacements factors that decreased considerably after annealing the samples at elevated temperature.

• OSTI ID: 22273748
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ANNEALING
ATOMIC DISPLACEMENTS
CURIE POINT
LANTHANUM COMPOUNDS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETIZATION
MANGANATES
MOLTEN SALTS
NANOSTRUCTURES
NEUTRON DIFFRACTION
NITRITES
PARTICLES
SINTERING
SODIUM COMPOUNDS
SOL-GEL PROCESS
STRONTIUM COMPOUNDS
TRIGONAL LATTICES
X-RAY DIFFRACTION
X-RAY FLUORESCENCE ANALYSIS