Superspin-glass like behavior of nanoparticle La0.7Ca0.3MnO3 obtained by mechanochemical milling
Апстракт
Single-phase perovskite compound La0.7Ca0.3MnO3 was synthesised by a high-energy ball milling in a single step processing. Structure and morphology characterizations revealed nanoparticle nature of this mixed valent manganite with the average particle diameter of 9 nm. Comprehensive set of magnetic measurements showed that the system can be described as an ensemble of interacting magnetic nanoparticles where each particle possesses high magnetic moment, i.e., superspin. Furthermore, magnetic behavior showed contributions from both superspin-glass (SSG) and superparamagnetic (SP) states, and the prevailing properties depended on the experimental conditions. It was established that SSG state dominated in low magnetic fields up to 500 Oe while in higher applied fields suppression of collective behavior occurred and individual characteristics of nanoparticles prevailed. It was also concluded that the applied method of synthesis produced system with high magnetic anisotropy as well as with ...the large nanoparticle shell whose thickness amounts 30% of a particle diameter.
Кључне речи:
Manganites / Nanoparticles / Mechanochemistry / Magnetic properties / Superspin-glassИзвор:
Journal of Nanoparticle Research, 2011, 13, 2, 763-771Финансирање / пројекти:
- Ministry of Science and Environmental Protection of Serbia [141027]
DOI: 10.1007/s11051-010-0076-2
ISSN: 1388-0764
WoS: 000287860200031
Scopus: 2-s2.0-79956092702
Колекције
Институција/група
VinčaTY - JOUR AU - Spasojević, Vojislav AU - Mraković, Ana Đ. AU - Perović, Marija M. AU - Kusigerski, Vladan AU - Blanuša, Jovan PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4232 AB - Single-phase perovskite compound La0.7Ca0.3MnO3 was synthesised by a high-energy ball milling in a single step processing. Structure and morphology characterizations revealed nanoparticle nature of this mixed valent manganite with the average particle diameter of 9 nm. Comprehensive set of magnetic measurements showed that the system can be described as an ensemble of interacting magnetic nanoparticles where each particle possesses high magnetic moment, i.e., superspin. Furthermore, magnetic behavior showed contributions from both superspin-glass (SSG) and superparamagnetic (SP) states, and the prevailing properties depended on the experimental conditions. It was established that SSG state dominated in low magnetic fields up to 500 Oe while in higher applied fields suppression of collective behavior occurred and individual characteristics of nanoparticles prevailed. It was also concluded that the applied method of synthesis produced system with high magnetic anisotropy as well as with the large nanoparticle shell whose thickness amounts 30% of a particle diameter. T2 - Journal of Nanoparticle Research T1 - Superspin-glass like behavior of nanoparticle La0.7Ca0.3MnO3 obtained by mechanochemical milling VL - 13 IS - 2 SP - 763 EP - 771 DO - 10.1007/s11051-010-0076-2 ER -
@article{ author = "Spasojević, Vojislav and Mraković, Ana Đ. and Perović, Marija M. and Kusigerski, Vladan and Blanuša, Jovan", year = "2011", abstract = "Single-phase perovskite compound La0.7Ca0.3MnO3 was synthesised by a high-energy ball milling in a single step processing. Structure and morphology characterizations revealed nanoparticle nature of this mixed valent manganite with the average particle diameter of 9 nm. Comprehensive set of magnetic measurements showed that the system can be described as an ensemble of interacting magnetic nanoparticles where each particle possesses high magnetic moment, i.e., superspin. Furthermore, magnetic behavior showed contributions from both superspin-glass (SSG) and superparamagnetic (SP) states, and the prevailing properties depended on the experimental conditions. It was established that SSG state dominated in low magnetic fields up to 500 Oe while in higher applied fields suppression of collective behavior occurred and individual characteristics of nanoparticles prevailed. It was also concluded that the applied method of synthesis produced system with high magnetic anisotropy as well as with the large nanoparticle shell whose thickness amounts 30% of a particle diameter.", journal = "Journal of Nanoparticle Research", title = "Superspin-glass like behavior of nanoparticle La0.7Ca0.3MnO3 obtained by mechanochemical milling", volume = "13", number = "2", pages = "763-771", doi = "10.1007/s11051-010-0076-2" }
Spasojević, V., Mraković, A. Đ., Perović, M. M., Kusigerski, V.,& Blanuša, J.. (2011). Superspin-glass like behavior of nanoparticle La0.7Ca0.3MnO3 obtained by mechanochemical milling. in Journal of Nanoparticle Research, 13(2), 763-771. https://doi.org/10.1007/s11051-010-0076-2
Spasojević V, Mraković AĐ, Perović MM, Kusigerski V, Blanuša J. Superspin-glass like behavior of nanoparticle La0.7Ca0.3MnO3 obtained by mechanochemical milling. in Journal of Nanoparticle Research. 2011;13(2):763-771. doi:10.1007/s11051-010-0076-2 .
Spasojević, Vojislav, Mraković, Ana Đ., Perović, Marija M., Kusigerski, Vladan, Blanuša, Jovan, "Superspin-glass like behavior of nanoparticle La0.7Ca0.3MnO3 obtained by mechanochemical milling" in Journal of Nanoparticle Research, 13, no. 2 (2011):763-771, https://doi.org/10.1007/s11051-010-0076-2 . .