10.1016/j.matchemphys.2018.04.068
https://zenodo.org/records/3551419
oai:zenodo.org:3551419
Aram S. Manukyan
Aram S. Manukyan
Leon A. Avakyan
Leon A. Avakyan
Anna E. Elsukova
Anna E. Elsukova
Yan V. Zubavichus
Yan V. Zubavichus
Sergey N. Sulyanov
Sergey N. Sulyanov
Armen A. Mirzakhanyan
Armen A. Mirzakhanyan
Natalia A. Kolpacheva
Natalia A. Kolpacheva
Marina Spasova
Marina Spasova
Armen N. Kocharian
Armen N. Kocharian
Michael Farle
Michael Farle
Lusegen A. Bugaev
Lusegen A. Bugaev
Eduard G. Sharoyan
Eduard G. Sharoyan
Formation of Nickel Nanoparticles and Magnetic Matrix in Nickel Phthalocyanine by Doping with Potassium
Zenodo
2018
nickel nanoparticles
phthalocyanine matrix
molecular magnetism
magnetic resonances and magnetic properties
HRTEM
XRD and XAFS study
2018-09-01
Creative Commons Attribution 4.0 International
A method for synthesis of nickel nanoparticles in a magnetic nickel phthalocyanine anions matrix has been developed.
The method is based on intercalation of potassium atoms to the nickel phthalocyanine (NiPc) polycrystalline powder at
300°C. The structure of (K2NiPc) was investigated by using high-resolution transmission electron microscopy
(HRTEM), X-ray diffraction (XRD) and X-ray absorption fine structure (XAFS) spectroscopes. Magnetic properties
were studied by SQUID magnetometry and magnetic resonances methods. It is revealed that the resultant compound
contains of 1 wt% Ni nanoparticles with the average size of 15 nm. The measured values of the magnetization and
absorption of the ferromagnetic resonance considerably exceed the magnetism which can be attributed to metallic Ni
nanoparticles. The obtained results indicate the presence of room temperature molecular ferromagnetism caused by
anionic molecules of NiPc.