Rhombohedral Distortion in Fe_{3-y}Zn_{y}O_{4} at Verwey Transition

• Authors: A. Kozłowski , Z. Kąkol , R. Zalecki , K. Knight , J.M. Honig
• Languages of publication: EN

Abstracts

EN

The time-of-flight neutron diffraction data were collected for two Fe_{3-y}Zn_{y}O_{4} powder samples showing different order of the Verwey transition: y=0.0072 - first order, y=0.0249 - second order. Measurements were performed on spallation neutron source in ISIS Rutherford Appleton Laboratory. At low temperatures (below Verwey transition temperature T_{V}) clear splitting of certain reflections characteristic of rhombohedral distortion was observed for both samples. We found that this distortion is much bigger for the sample exhibiting first-order than for the sample showing second-order transition.

Keywords

EN

75.50.Gg; 64.70.Kb; 61.12.-q

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 2
• Pages: 443-446

Dates

published

1997-02

Contributors

author

A. Kozłowski

• Department of Solid State Physics, University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

author

Z. Kąkol

• Department of Solid State Physics, University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

author

R. Zalecki

• Department of Solid State Physics, University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

author

K. Knight

• Rutherford Appleton Laboratory, ISIS, Chilton, UK

author

J.M. Honig

• Purdue University, West Lafayette, Indiana, USA