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2 Acta Physica Polonica A

2 2009

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Electrochemical Deposition of Nanowires in Porous Alumina

100%

Kalska-Szostko B. , Brancewicz E. , Mazalski P. , Sveklo J. , Olszewski W. , Szymański K. , Sidor A.

Acta Physica Polonica A

2009

tom 115

nr 2

542-544

Electrochemical deposition is a very efficient method for producing many types of modern materials. The method is not expensive and does not have a limit for sample size. In our work the preparation of Ni, Co and Fe nanowires is presented. The obtained nanowires had different diameter and length which were tunable by template porous material and time of deposition, respectively. The quality of the prepared wires was dependent also on deposition mode. The smallest wires of the diameter around 40 nm were prepared in porous anodic alumina oxide obtained from oxalic acid. The largest ones, around 120 nm, were produced in phosphoric acid. The length could be as large as the thickness of the oxide and reached up to about 1 μm. The morphology of wires was studied by atomic force microscopy and scanning electron microscopy. The magnetic characterization was done with usage of magnetic force microscopy and the Mössbauer spectroscopy. The wires show magnetization along their growth direction.

Magneto-Optical Study of NiFe/Au/Co/Au Layers

100%

Mazalski P. , Postava K. , Tekielak M. , Maziewski A. , Urbaniak M. , Szymański B. , Stobiecki F.

Acta Physica Polonica A

2009

tom 115

nr 1

369-371

Sputtered NiFe/Au/Co/Au layers with noncollinear magnetizations are of scientific interest for unusual magnetization behavior and their potential application in spintronics. In this paper, we propose to use a material selective sensitivity of magneto-optical Kerr effect for separation of signals from different materials in a bilayer system. The materials selective sensitivity is demonstrated on a sample with two mutually perpendicular Co and NiFe wedges.