Sergey V. Stolyar, Oleg A. Bayukov, Valentina P. Ladygina, Lidiya A. Ishchenko, Rauf S. Iskhakov, “Structure and Magnetic Properties of Biogenic Ferrihydrite Nanoparticles Doped with Gadolinium”, J. Sib. Fed. Univ. Math. Phys., 2013, Volume 6, Issue 3,Pages <nobr>357

Structure and Magnetic Properties of Biogenic Ferrihydrite Nanoparticles Doped with Gadolinium

Sergey V. Stolyar^a, Oleg A. Bayukov^b, Valentina P. Ladygina^c, Lidiya A. Ishchenko^a, Rauf S. Iskhakov^b

^a Siberian Federal University, Krasnoyarsk, Russia
^b Kirensky Institute of Physics, SB RAS, Krasnoyarsk, Russia
^c International scientific centre for research of organism extreme states, Krasnoyarsk Scientific Centre, SB RAS, Krasnoyarsk, Russia

Abstract: Bacterial culture Klebsiella oxytoca was grown in a Lovley medium at various concentrations of gadolinium salt. Biogenic magnetic nanoparticles of ferrihydrite were investigated by Mossbauer spectroscopy and magnetization curves were obtained. The results of structural studies showed that iron Fe(5) takes new position when cultivating is carried out in medium with high concentrations of gadolinium. It was found that gadolinium is fit into the crystal structure of ferrihydrite. These results are consistent with the analysis of the magnetization curves.

Keywords: ferrihydrite nanoparticle, bacterial culture Klebsiela oxytoca, Mössbauer spectroscopy, gadolinium doping.

UDC: 537.9

Received: 11.04.2013
Received in revised form: 02.05.2013
Accepted: 25.05.2013

Language: English