R. S. Iskhakov, S. V. Komogortsev, A. D. Balaev, A. V. Okotrub, A. G. Kudashov, V. L. Kuznetsov, Yu. V. Butenko, “Fe nanowires in carbon nanotubes as an example of a one-dimensional system of exchange-coupled ferromagnetic nanoparticles”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2003, Volume 78, Issue 4,Pages <nobr>271

This article is cited in 35 papers

Fe nanowires in carbon nanotubes as an example of a one-dimensional system of exchange-coupled ferromagnetic nanoparticles

R. S. Iskhakov^a, S. V. Komogortsev^a, A. D. Balaev^a, A. V. Okotrub^b, A. G. Kudashov^b, V. L. Kuznetsov^c, Yu. V. Butenko^c

^a L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk
^b Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
^c Boreskov Institute of Catalysis SB RAS, Novosibirsk

Abstract: The cooperative phenomena revealed in the field and temperature dependences of the magnetization in a system of iron nanoparticles in carbon nanotubes were studied experimentally. The character of the temperature dependences of the magnetization indicates that the ferromagnetic Fe particles in carbon nanotubes are exchange-coupled. In the region where the magnetization approaches saturation, the magnetization curves reveal the power dependence $\Delta M\sim H^{-3/2}$ typical for a one-dimensional system of exchange-coupled ferromagnetic nanoparticles.

PACS: 75.50.-y, 75.60.-d, 75.75.+а

Received: 21.07.2003