Competing ground states in heavy-fermion materials

• Published in: Journal of alloys and compounds Vol. 303; pp. 239 - 244
• Main Authors: Thompson, J.D, Hegger, H, Louca, D, Kwei, G.H, Movshovich, R, Petrovic, C, Sarrao, J.L
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 24.05.2000
• Subjects: Heavy fermions; Kondo effects; Neutron diffraction; Phase transitions; Pressure; Thermal expansion; Thermal expansion; Heavy fermions; Neutron diffraction; Pressure; Phase transitions; Kondo effects

Competing interactions in the presence of coupled spin, charge, and lattice degrees of freedom in heavy-fermion materials lead to a near degeneracy of ground states in some systems. A small perturbation in unit-cell volume or composition subsequently can produce a qualitative change in the ground st...