Pressure Effect on Magnetic Properties of UGa_{3}

• Authors: G. Grechnev , A. Delin , O. Eriksson , B. Johansson , A. Panfilov , I. Svechkarev , D. Kaczorowski
• Languages of publication: EN

Abstracts

EN

The magnetic susceptibility, χ, of the itinerant antiferromagnetic compound UGa_{3} was studied under pressure up to 2 kbar in the temperature range 64-300 K. The measured pressure derivative of the Néel temperature is found to be dT_{N}/dP=-1.1 K/kbar. In order to analyze the experimental magnetovolume effect values, d lnχ/d lnV, the volume dependent electronic structure of UGa_{3} has been calculated ab initio in a paramagnetic phase by employing a relativistic full-potential linear muffin tin orbital method and including an external magnetic field self-consistently. The calculations revealed a predominance of itinerant uranium f-states at the Fermi energy, as well as a large orbital contribution to χ.

Keywords

EN

75.10.Lp; 75.20.En

Discipline

• 75.10.Lp: Band and itinerant models
• 75.20.En: Metals and alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 2
• Pages: 331-333

Dates

published

1997-08

Contributors

author

G. Grechnev

• B. Verkin Institute for Low Temperature Physics and Engineering, Lenin's pr. 47, Kharkov, 310164, Ukraine

author

A. Delin

• Condensed Matter Theory Group, Department of Physics, Uppsala University, Box 530, 751 21 Uppsala, Sweden

author

O. Eriksson

• Condensed Matter Theory Group, Department of Physics, Uppsala University, Box 530, 751 21 Uppsala, Sweden

author

B. Johansson

• Condensed Matter Theory Group, Department of Physics, Uppsala University, Box 530, 751 21 Uppsala, Sweden

author

A. Panfilov

• B. Verkin Institute for Low Temperature Physics and Engineering, Lenin's pr. 47, Kharkov, 310164, Ukraine

author

I. Svechkarev

• B. Verkin Institute for Low Temperature Physics and Engineering, Lenin's pr. 47, Kharkov, 310164, Ukraine

author

D. Kaczorowski

• W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-950 Wrocław, Poland

Identifiers

DOI

10.12693/APhysPolA.92.331