Nanoparticle materials have become a promising candidate for a new kind of storage media based on thermally induced memory effects due to the possibility to tailor their magnetic properties and behaviour. In this study, we have investigated whether the magnetic memory effects could appear at high, industry accessible temperatures including the possibility of thermal data inscription. Investigated iron oxide nanoparticles were synthesized by poliol method, which has been modified in order to allow control of particle agglomeration and consequently magnetic properties. Structure, morphology and the degree of nanoparticle agglomeration were studied by X-Ray diffraction, Transmission Electron Microscopy and Dynamic Light Scattering techniques, while magnetic properties as well as memory effects were measured on a commercial SQUID-based magnetometer. Results of the study confirmed that in super spin glass magnetite nanoparticles, magnetic memory effects can be observed up to 200 K which rep...resents much higher temperatures in comparison to those achieved in spin glasses and other glassy materials. Procedures of writing and reading (inscribing and retrieving) of digital information in such a material were demonstrated and discussed in details.
Keywords:
Magnetic memory effect / Magnetic properties / Magnetite. / Super spin glass nanoparticles / Thermal memory cell
Source:
Journal of Alloys and Compounds, 2021, 855, 157523-
TY - JOUR
AU - Perović, Marija M.
AU - Bošković, Marko
AU - Kusigerski, Vladan
AU - Jagličić, Zvonko
AU - Blanuša, Jovan
AU - Spasojević, Vojislav
AU - Pizurova, Nadežda
AU - Schneeweiss, Oldřich B.
PY - 2021
UR - https://vinar.vin.bg.ac.rs/handle/123456789/9674
AB - Nanoparticle materials have become a promising candidate for a new kind of storage media based on thermally induced memory effects due to the possibility to tailor their magnetic properties and behaviour. In this study, we have investigated whether the magnetic memory effects could appear at high, industry accessible temperatures including the possibility of thermal data inscription. Investigated iron oxide nanoparticles were synthesized by poliol method, which has been modified in order to allow control of particle agglomeration and consequently magnetic properties. Structure, morphology and the degree of nanoparticle agglomeration were studied by X-Ray diffraction, Transmission Electron Microscopy and Dynamic Light Scattering techniques, while magnetic properties as well as memory effects were measured on a commercial SQUID-based magnetometer. Results of the study confirmed that in super spin glass magnetite nanoparticles, magnetic memory effects can be observed up to 200 K which represents much higher temperatures in comparison to those achieved in spin glasses and other glassy materials. Procedures of writing and reading (inscribing and retrieving) of digital information in such a material were demonstrated and discussed in details.
T2 - Journal of Alloys and Compounds
T1 - Search for high temperature memory effects in magnetic nanoparticles
VL - 855
SP - 157523
DO - 10.1016/j.jallcom.2020.157523
ER -
@article{
author = "Perović, Marija M. and Bošković, Marko and Kusigerski, Vladan and Jagličić, Zvonko and Blanuša, Jovan and Spasojević, Vojislav and Pizurova, Nadežda and Schneeweiss, Oldřich B.",
year = "2021",
abstract = "Nanoparticle materials have become a promising candidate for a new kind of storage media based on thermally induced memory effects due to the possibility to tailor their magnetic properties and behaviour. In this study, we have investigated whether the magnetic memory effects could appear at high, industry accessible temperatures including the possibility of thermal data inscription. Investigated iron oxide nanoparticles were synthesized by poliol method, which has been modified in order to allow control of particle agglomeration and consequently magnetic properties. Structure, morphology and the degree of nanoparticle agglomeration were studied by X-Ray diffraction, Transmission Electron Microscopy and Dynamic Light Scattering techniques, while magnetic properties as well as memory effects were measured on a commercial SQUID-based magnetometer. Results of the study confirmed that in super spin glass magnetite nanoparticles, magnetic memory effects can be observed up to 200 K which represents much higher temperatures in comparison to those achieved in spin glasses and other glassy materials. Procedures of writing and reading (inscribing and retrieving) of digital information in such a material were demonstrated and discussed in details.",
journal = "Journal of Alloys and Compounds",
title = "Search for high temperature memory effects in magnetic nanoparticles",
volume = "855",
pages = "157523",
doi = "10.1016/j.jallcom.2020.157523"
}
Perović, M. M., Bošković, M., Kusigerski, V., Jagličić, Z., Blanuša, J., Spasojević, V., Pizurova, N.,& Schneeweiss, O. B.. (2021). Search for high temperature memory effects in magnetic nanoparticles. in Journal of Alloys and Compounds, 855, 157523.
https://doi.org/10.1016/j.jallcom.2020.157523
Perović MM, Bošković M, Kusigerski V, Jagličić Z, Blanuša J, Spasojević V, Pizurova N, Schneeweiss OB. Search for high temperature memory effects in magnetic nanoparticles. in Journal of Alloys and Compounds. 2021;855:157523.
doi:10.1016/j.jallcom.2020.157523 .
Perović, Marija M., Bošković, Marko, Kusigerski, Vladan, Jagličić, Zvonko, Blanuša, Jovan, Spasojević, Vojislav, Pizurova, Nadežda, Schneeweiss, Oldřich B., "Search for high temperature memory effects in magnetic nanoparticles" in Journal of Alloys and Compounds, 855 (2021):157523,
https://doi.org/10.1016/j.jallcom.2020.157523 . .
