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Phase Transitions in ErFe_{1-x}Al_{x}O_{3} System (x ≤ 0.1)

100%

Bombik A., Pacyna A., Witek W.

Acta Physica Polonica A

1994

vol. 85

issue 2

263-266

The magnetic measurements for some representatives of ErFe_{1-x}Al_{x}O_{3} system were performed. The obtained results indicate an essential influence of nonmagnetic substitution on physical behaviour of examined compounds.

Magnetoelastic Phase Transitions and Critical Behaviour of (Fe_{1-x}Ni_{x})_{2}P System

64%

Średniawa B., Duraj R., Pacyna A., Bombik A., Zach R., Bacmann M., Fruchart D., Nizioł S., Fornal P., Stanek J.

Acta Physica Polonica A

2000

vol. 97

issue 5

921-925

This report focuses on magnetoelastic properties and critical behaviour of (Fe_{1-x}Ni_{x})_{2}P system. For low Ni content (x=0.01) an isolated critical point was found. Analysis of this critical behaviour in the frame of molecular field approximation was carried out. Moreover, thermal variations of the lattice parameters, as measured by X-ray diffraction techniques, were studied. The (P,T) phase diagrams obtained for several Ni contents show the evidence that the Curie temperature decreases with pressure. The Mössbauer spectra collected for x = 0.025, 0.1, 0.2, 0.25 at different temperatures are also analysed. The existence of two nonequivalent crystallographic sites occupied by iron atoms as well as local magnetic structure is discussed.

Magnetic Structure of RNiGe and RPdSn Compounds

64%

André G., Bourée F., Bombik A., Oleś A., Sikora W., Kolenda M., Szytuła A., Pacyna A., Zygmunt A.

Acta Physica Polonica A

1994

vol. 85

issue 2

275-278

Magnetic properties including magnetic structure of ternary RNiGe (R = Tb-Er) and RPdSn (R = Ce, Tb-Ho) compounds are determined. In low temperatures an antiferromagnetic ordering is observed. For compounds with R = Tb-Er the magnetic structure changes with temperature.

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3 Acta Physica Polonica A

1 2000

2 1994

3 Bombik A.

3 Pacyna A.

1 André G.

1 Bacmann M.

1 Bourée F.

1 Duraj R.

1 Fornal P.

1 Fruchart D.

1 Kolenda M.

1 Nizioł S.

1 Oleś A.

1 Sikora W.

1 Stanek J.

1 Szytuła A.

1 Witek W.

1 Zach R.

1 Zygmunt A.

1 Średniawa B.

Search results

Phase Transitions in ErFe_{1-x}Al_{x}O_{3} System (x ≤ 0.1)

Magnetoelastic Phase Transitions and Critical Behaviour of (Fe_{1-x}Ni_{x})_{2}P System

Magnetic Structure of RNiGe and RPdSn Compounds