Magnetic quantum critical point and dimensionality trend in cerium-based heavy-fermion compounds

Journal Article · Fri Nov 19 00:00:00 EST 2010 · Physical Review. B, Condensed Matter and Materials Physics, 82(18):180515

DOI:https://doi.org/10.1103/PhysRevB.82.180515· OSTI ID:1097992

Matsumoto, Munehisa; Han, Myung J.; Otsuki, Junya; Savrasov, Sergey Y.

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.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1097992
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, 82(18):180515, Journal Name: Physical Review. B, Condensed Matter and Materials Physics, 82(18):180515
• Country of Publication: United States
• Language: English

Related Subjects

Environmental Molecular Sciences Laboratory