TY - JOUR

T1 - Magnetic Properties of Two-Phase Borosilicate Glasses Containing β-Fe2O3 and Fe3O4 Nanoparticles

AU - Borisov, S. A.

AU - Naberezhnov, A. A.

AU - Nacke, B.

AU - Nikanorov, A.

N1 - Funding Information: S.A. Borisov gratefully acknowledges partial support from the Russian Foundation for Basic Research, project no. 19-02-00760. A. A. Naberezhnov is grateful to DAAD (Germany) grant of Research Stays for University Academics and Scientists 57442043 for support of works performed in the Leibniz University of Hannover (ETP). ACKNOWLEDGMENTS

PY - 2020/8

Y1 - 2020/8

N2 - Abstract: We have studied the magnetic properties of two-phase borosilicate glasses with matrices containing a mixture of β-Fe2O3 and Fe3O4 nanoparticles. The dimensions of the oxide nanoparticles are determined, and the temperature of blocking (TB ~ 330 K) of the ensemble of superparamagnetic nanoparticles is estimated. It is also established that a sharp increase in the specific magnetization of these glasses when the Néel temperature is approached (and, below it, for bulk β-Fe2O3).

AB - Abstract: We have studied the magnetic properties of two-phase borosilicate glasses with matrices containing a mixture of β-Fe2O3 and Fe3O4 nanoparticles. The dimensions of the oxide nanoparticles are determined, and the temperature of blocking (TB ~ 330 K) of the ensemble of superparamagnetic nanoparticles is estimated. It is also established that a sharp increase in the specific magnetization of these glasses when the Néel temperature is approached (and, below it, for bulk β-Fe2O3).

KW - core–shell nanosystems

KW - magnetic glasses

KW - magnetic properties

KW - s: iron oxides

UR - http://www.scopus.com/inward/record.url?scp=85091038207&partnerID=8YFLogxK

U2 - 10.1134/S1063785020080180

DO - 10.1134/S1063785020080180

M3 - Article

AN - SCOPUS:85091038207

VL - 46

SP - 808

EP - 811

JO - Technical physics letters

JF - Technical physics letters

SN - 1063-7850

IS - 8

ER -