V. M. Tsmots', P. G. Litovchenko, N. T. Pavlovska, O. V. Pavlovskii, I. P. Ostrovskyy, “Study and simulation of magnetic susceptibility of Si and Si$_{0.95}$Ge$_{0.05}$ whiskers”, Fizika i Tekhnika Poluprovodnikov, 2010, Volume 44, Issue 5,Pages 649

This article is cited in 2 papers

Low-dimensional systems

Study and simulation of magnetic susceptibility of Si and Si$_{0.95}$Ge$_{0.05}$ whiskers

V. M. Tsmots'^a, P. G. Litovchenko^b, N. T. Pavlovska^ab, O. V. Pavlovskii^a, I. P. Ostrovskyy^c

^a Drohobych Ivan Franko State Pedagogical University
^b Institute for Nuclear Research of the National Academy of Sciences of Ukrainian
^c Lviv Polytechnic National University

Abstract: The magnetic susceptibilities of Si and Si$_{0.95}$Ge$_{0.05}$ alloy whiskers of different diameters have been studied. Its significant difference from the magnetic susceptibility of a bulk material has been found. The presence of paramagnetic centers, some of which form magnetic nanoclusters in samples, is assumed. To explain the experimental results obtained, a model within Langevin superparamagnetism has been suggested. The distribution function of clusters over their magnetic moments has been constructed. The most probable sizes and magnetic moments of clusters are determined.

Received: 01.10.2009
Accepted: 22.10.2009