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

• Authors: B. Średniawa , R. Duraj , A. Pacyna , A. Bombik , R. Zach , M. Bacmann , D. Fruchart , S. Nizioł , P. Fornal , J. Stanek
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

75.50.Cc; 71.20.Lp

Discipline

• 71.20.Lp: Intermetallic compounds
• 75.50.Cc: Other ferromagnetic metals and alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 5
• Pages: 921-925

Dates

published

2000-05

Contributors

author

B. Średniawa

• Institute of Physics, Technical University of Cracow, Podchorążych 1, 30-084 Cracow, Poland

author

R. Duraj

• Institute of Physics, Technical University of Cracow, Podchorążych 1, 30-084 Cracow, Poland

author

A. Pacyna

• IFJ, Radzikowskiego 152, 31-342 Cracow, Poland

author

A. Bombik

• WFiTJ, AGH, Al. Mickiewicza 30, 30-059 Cracow, Poland

author

R. Zach

• Institute of Physics, Technical University of Cracow, Podchorążych 1, 30-084 Cracow, Poland

author

M. Bacmann

• Lab. Cristallographie, CNRS, BP 166X, Av. Martyrs, Grenoble, France

author

D. Fruchart

• Lab. Cristallographie, CNRS, BP 166X, Av. Martyrs, Grenoble, France

author

S. Nizioł

• WFiTJ, AGH, Al. Mickiewicza 30, 30-059 Cracow, Poland

author

P. Fornal

• Institute of Physics, Technical University of Cracow, Podchorążych 1, 30-084 Cracow, Poland

author

J. Stanek

• IF UJ, Reymonta 4, 30-059 Cracow, Poland

Identifiers

DOI

10.12693/APhysPolA.97.921