Pressure effect on the Fermi surface and electronic structure of LuGa3 and TmGa3

Abstract

The Fermi surfaces and cyclotron masses of LuGa 3 and TmGa 3 compounds are studied by means of the de Haas-van Alphen effect technique under pressure. The highly anisotropic pressure dependences of the de Haas-van Alphen frequencies and cyclotron masses have been observed in both compounds. Concurrently, the ab initio calculations of the volume-dependent band structures have been carried out for these compounds, including ferromagnetic configuration phase of TmGa 3 , by employing a relativistic version of the full-potential linear muffin-tin orbital method within the local spin-density approximation. The experimental data have been analysed on the basis of the calculated volume-dependent band structures and compared with the corresponding pressure effects in the isostructural compound ErGa 3 .

Anomalous Diamagnetism of YbPb3Compound: Pressure Effects

“…The YbPb 3 sample was grown by a similar to [6] method in the form of druse involving a few single crystals of 1-3 mm in size immersed in an excess of Pb with total mass of about 0.7 g. The measurements of susceptibility χ were carried out under helium gas pressure up to 2 kbar at fixed temperatures 78 and 300 K by using the pendulum-type magnetometer placed into a non-magnetic pressure cell [7]. The relative errors did not exceed 0.2%.…”

Crystal structure and magnetic properties of disordered alloy ErGa3−xMnx*

“…Most of RX 3 intermetallic compounds (R = rare earth; X = In, Ga, Tl, Sn, and Pb) have a cubic AuCu 3 -type crystal structure. [1][2][3][4][5][6][7][8] The interest in RX 3 is growing due to their salient features such as formation of magnetic moment, crystal field effect, and multiaxial magnetic structures. [9][10][11] In the last decade, the research activities have focused on the binary intermetallic compounds RIn 3 with cubic AuCu 3 -type structure due to their excellent physical properties such as low temperature superconductor, complex magnetic ordering, Kondo effect, and multi-axis magnetic structure.…”