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Magnetic Properties of MeB_{50} (Me = 3d Atom) Compounds

100%

Panfilov A., Grechnev G., Filipov V., Lyashchenko A., Levchenko G.

vol. 126

issue 1

400-401

Temperature dependence of the static magnetic susceptibility for higher borides MeB_{50}, where Me = V, Cr, Mn, Fe, Co and Ni, was measured by Faraday method in the temperature range of 78-300 K. The value of effective magnetic moment of 3d-ions, resulted from the experiment, is compared with corresponding data of the ab initio calculations of the electronic structure and magnetic properties of these compounds based on the density functional theory.

Pressure Effect on Magnetic Properties of UGa_{3}

86%

Grechnev G., Delin A., Eriksson O., Johansson B., Panfilov A., Svechkarev I., Kaczorowski D.

Acta Physica Polonica A

1997

vol. 92

issue 2

331-333

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.

Anomalous Diamagnetism of YbPb_3 Compound: Pressure Effects

86%

Baranovskiy A., Grechnev G., Panfilov A., Svechkarev I., Żogał O., Czopnik A., Hackemer A.

Acta Physica Polonica A

2008

vol. 113

issue 1

243-246

The effect of a uniform pressure on the magnetic susceptibility was measured for YbPb_3 compound, wherein a degeneracy point of the energy bands is located just below the Fermi level and responsible for the anomalous diamagnetism. Theoretical analysis of the experimental data has revealed that a pronounced increase of diamagnetism with pressure is governed by closing the degeneracy point towards the Fermi energy

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3 Acta Physica Polonica A

1 2014

1 2008

1 1997

3 Grechnev G.

3 Panfilov A.

2 Svechkarev I.

1 Baranovskiy A.

1 Czopnik A.

1 Delin A.

1 Eriksson O.

1 Filipov V.

1 Hackemer A.

1 Johansson B.

1 Kaczorowski D.

1 Levchenko G.

1 Lyashchenko A.

1 Żogał O.

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Magnetic Properties of MeB_{50} (Me = 3d Atom) Compounds

Pressure Effect on Magnetic Properties of UGa_{3}

Anomalous Diamagnetism of YbPb_3 Compound: Pressure Effects