Search results

Sort By:

Limit search:

Surface Investigations of Selected Materials by Low-Energy Ion Scattering Technique

100%

Goc-Jagło D., Sitko D., Jagło G., Kim-Ngan N., Soszka W.

Acta Physica Polonica A

2007

vol. 111

issue 5

763-771

Surfaces of three selected materials were investigated by means of low-energy ion-scattering technique: (1) the magnetite (Fe_3O_4) exhibiting the so-called Verwey transition (T_V(bulk)=125 K) accompanied by a small cubic-monoclinic crystal distortion, (2) the intermetallic compound NdMn_2 undergoing an antiferromagnetic-paramagnetic phase transition (T_N=104 K) accompanied by a large crystal distortion with a volume change of 1%, and (3) the typical insulator BaTiO_3 with two structural transitions below 300 K. The primary energy of the (Ne^+, Ar^+) ion beam was in the range of 4-8 keV, and the low-energy ion-scattering spectra were collected in the temperature range of 85-300 K. A large influence from the Verwey transition on the neutralization and re-ionization of scattered ions from magnetite surface was observed, while no visible change at the magnetic phase transition in NdMn_2 was revealed in the low-energy ion-scattering spectra. A strong dependence of the characteristics of the low-energy ion-scattering spectra on the irradiated time was observed for BaTiO_3 indicating that this surface was heavily charged by ion bombardments.

Significant Increment of the Dielectric Permittivity and Domain Properties in the (1-x)PbTiO3-x(Na0.5Bi0.5)TiO3 Crystals

72%

Czaja P., Piasecki M., Zapart M. B., Suchanicz J., Konieczny K., Michniowski J., Sitko D., Stachowski G., Kluczewska-Chmielarz K., Czaja P., Piasecki M., Zapart M. B., Suchanicz J., Konieczny K., Michniowski J., Sitko D., Stachowski G., Kluczewska-Chmielarz K.

vol. 65

issue 1

Refine search results

1 Acta Physica Polonica A

1 Archives of Metallurgy and Materials

1 2020

1 2007

2 Sitko D.

1 Czaja P.

1 Goc-Jagło D.

1 Jagło G.

1 Kim-Ngan N.

1 Kluczewska-Chmielarz K.

1 Konieczny K.

1 Michniowski J.

1 Piasecki M.

1 Soszka W.

1 Stachowski G.

1 Suchanicz J.

1 Zapart M. B.

Search results

Surface Investigations of Selected Materials by Low-Energy Ion Scattering Technique

Significant Increment of the Dielectric Permittivity and Domain Properties in the (1-x)PbTiO3-x(Na0.5Bi0.5)TiO3 Crystals