Abstract
The effect of pressure on the electronic structure and magnetic properties of the compounds YNi5, LaNi5, and CeNi5 is studied. Large magnetovolume effects of magnitude dlnχ∕dlnV≃4–7 are found for the magnetic susceptibility χ of these systems at low temperatures. Experimental data and “first principles” calculations of the electronic structure and paramagnetic contributions to the susceptibility indicate that YNi5, LaNi5, and CeNi5 are close to a quantum critical point. It is found that the van Vleck orbital contribution to the magnetic susceptibility is 15–20% in these exchange-enhanced paramagnetic materials and should be taken into account in analyzing experimental data on χ and dlnχ∕dlnV. Calculations of the magnetic-field induced moments for atoms in the unit cell of YNi5 reveal an inhomogeneous distribution of the magnetization density and a nontrivial competition between the spin and orbital moments.
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Dates
Type | When |
---|---|
Created | 14 years, 5 months ago (March 15, 2011, 1:26 p.m.) |
Deposited | 2 years, 2 months ago (June 28, 2023, 10:24 p.m.) |
Indexed | 1 year, 2 months ago (June 12, 2024, 1:17 a.m.) |
Issued | 14 years, 7 months ago (Feb. 1, 2011) |
Published | 14 years, 7 months ago (Feb. 1, 2011) |
Published Online | 14 years, 5 months ago (March 14, 2011) |
Published Print | 14 years, 7 months ago (Feb. 1, 2011) |
@article{Grechnev_2011, title={Effect of pressure on the magnetic properties of YNi5, LaNi5, and CeNi5}, volume={37}, ISSN={1090-6517}, url={http://dx.doi.org/10.1063/1.3555874}, DOI={10.1063/1.3555874}, number={2}, journal={Low Temperature Physics}, publisher={AIP Publishing}, author={Grechnev, G. E. and Logosha, A. V. and Panfilov, A. S. and Kuchin, A. G. and Vasijev, A. N.}, year={2011}, month=feb, pages={138–143} }