This article is cited in 3 papers

Surface physics, thin films

Magnetic properties of porous glass-CuO nanocomposites

E. V. Charnaya^ab, M. K. Lee^b, C. Tien^b, V. N. Pak^c, D. V. Formus^c, A. L. Pirozerskii^a, A. I. Nedbai^a, E. V. Ubyivovk^d, S. V. Baryshnikov^e, L. J. Chang<sup>b

a</sup> Saint Petersburg State University
^b Department of Physics, National Cheng Kung University, Tainan, Taiwan, China
^c Herzen State Pedagogical University of Russia, St. Petersburg
^d Interdisciplinary Resource Center for Nanotechnology, St.Petersburg State University, Petrodvorets, St. Petersburg, 198504, Russia
^e Blagoveshchensk State Pedagogical University

Abstract: The magnetization of the porous glass nanocomposite with CuO nanoparticles embedded in the pores has been studied in the temperature range from 1.8 to 350 K for different pore fillings. It has been shown that the magnetic properties of these nanocomposites depend significantly on pore filling. It has been found that, in the low-temperature range for the nanocomposite with a pore filling of 55% and for pressed CuO, the ZFC and FC susceptibilities diverge, a feature which has been almost absent in the nanocomposite with 21% filling. It has been demonstrated that the kink in the temperature dependence of magnetization, which corresponds to the paramagnetic-multiferroic phase transition, does not shift in the sample with a larger pore filling as compared to that observed in the bulk sample.

Received: 01.02.2012

 English version: Physics of the Solid State, 2012, 54:9, 1891–1895

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