We present realistic Kondo-lattice simulation results for the recently discovered heavy-fermion antiferromagnet CePt2In7 comparing with its three-dimensional counterpart CeIn3 and the less two-dimensional ones, Ce-115’s. We find that the distance to the magnetic quantum critical point is the largest for CeIn3 and the
smallest for Ce-115’s, and CePt2In7 falls in between. We argue that the trend in quasi two-dimensional materials stems from the frequency dependence of the hybridization between cerium 4f electrons and the conduction bands.
Revised: October 23, 2013 |
Published: November 19, 2010
Citation
Matsumoto M., M.J. Han, J. Otsuki, and S.Y. Savrasov. 2010.Magnetic quantum critical point and dimensionality trend in cerium-based heavy-fermion compounds.Physical Review. B, Condensed Matter and Materials Physics 82, no. 18:180515. doi:10.1103/PhysRevB.82.180515