Review

Heavy Fermions and Quantum Phase Transitions

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Science  03 Sep 2010:
Vol. 329, Issue 5996, pp. 1161-1166
DOI: 10.1126/science.1191195

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From Simplicity to Complexity

The relatively simple properties of isolated electrons become rich and complex when the particle-particle interactions are strong enough to form a correlated system. Emergence of complex behavior from relatively simple subunits is an intensely studied topic in condensed-matter physics and applies to many systems in superconductivity and magnetism. Si and Steglich (p. 1161) review the physics of heavy fermion intermetallic compounds. These make ideal materials for study because they can exhibit metallic, magnetic, and superconducting behavior showing novel quantum phases and unconventional quantum criticality.

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