Magnetic properties of synthetic Ni3Si2O5(OH)4 nanotubes

Andrei A. Krasilin; Anna S. Semenova; Dina G. Kellerman; Vladimir N. Nevedomsky; Victor V. Gusarov

doi:10.1209/0295-5075/113/47006

All issues

Volume 113 / No 4 (February 2016)

EPL, 113 4 (2016) 47006

Abstract

Issue		EPL Volume 113, Number 4, February 2016


Article Number		47006
Number of page(s)		5
Section		Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI		https://doi.org/10.1209/0295-5075/113/47006
Published online		14 March 2016

EPL, 113 (2016) 47006

Magnetic properties of synthetic Ni₃Si₂O₅(OH)₄ nanotubes

Andrei A. Krasilin¹^,2^(a), Anna S. Semenova³, Dina G. Kellerman³, Vladimir N. Nevedomsky¹ and Victor V. Gusarov¹

¹ Ioffe Institute - 26 Politekhnicheskaya st., 194021 St.-Petersburg, Russia
² ITMO University - 26 Kronverksky pr., 197101 St.-Petersburg, Russia
³ Institute of Solid State Chemistry of the Ural Branch of the Russian Academy of Sciences 91 Pervomaiskaya st., 620990 Ekaterinburg, Russia

^(a) ikrasilin@gmail.com

Received: 12 September 2015
Accepted: 28 February 2016

Abstract

The present study focuses on the magnetic properties of the nanotubular Ni₃Si₂O₅(OH)₄ pecoraite, the structural analogue of chrysotile, obtained by hydrothermal synthesis. The cell parameters of the material, determined by X-ray diffraction, are $a=0.528(1)\ \text{nm}$ , $b=0.917(0)\ \text{nm}$ , $c=1.460(1)\ \text{nm}$ and $\beta=92.4(7)^{\circ}$ . The element analysis revealed the decrease of the Ni:Si ratio after hydrothermal treatment. The synthesized nanotubes have bigger outer and inner diameters in comparison to chrysotile. Using a vibration sample magnetometer, we determined the temperature of the ferromagnetic transition (23.7 K), $\mu_{\mathrm{eff}}$ of the $\text{Ni}^{2+}$ ion in pecoraite $(3.48\ \mu \text{B})$ and the blocking temperature (18 K).

PACS: 75.75.-c – Magnetic properties of nanostructures / 81.07.De – Nanotubes

© EPLA, 2016

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