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The Kondo Problem to Heavy Fermions
1. Models of magnetic impurities 2. Resistivity calculations and the resistance minimum 3. The Kondo problem 4. Renormalization group calculations 5. Fermi liquid theories 6. Exact solutions and the…
Introduction to Many-Body Physics
- P. Coleman
- Physics, Education
- 1 February 2016
A modern, graduate-level introduction to many-body physics in condensed matter, this textbook explains the tools and concepts needed for a research-level understanding of the correlated behavior of…
Heavy Fermions: Electrons at the Edge of Magnetism
- P. Coleman
- 30 November 2006
An introduction to the physics of heavy-fermion compounds is presented, highlighting the conceptual developments and emphasizing the mysteries and open questions that persist in this active field of…
Topological Kondo insulators.
A topological classification of emergent band structures for Kondo insulators is developed and it is shown that these materials may host three-dimensional topological insulating phases.
Onset of antiferromagnetism in heavy-fermion metals
Evidence is found for an atomically local contribution to the magnetic correlations which develops at the critical gold concentration, corresponding to a magnetic ordering temperature of zero, which implies that a Fermi-liquid-destroying spin-localizing transition, unanticipated from the spin density wave description, coincides with the antiferromagnetic quantum critical point.
New approach to the mixed-valence problem
- P. Coleman
- 15 March 1984
Trying to solve the mixed valence problem can be likened to climbing a mountain: one needs first and foremost optimism, one also needs good equipment without which one is sure to fail. This short…
It is 100 years on, the same experimental measurement that puzzled Einstein and his contemporaries is forcing us to question the authors' understanding of how quantum matter transforms at ultra-low temperatures.
The break-up of heavy electrons at a quantum critical point
It is inferred that all ballistic motion of electrons vanishes at a QCP, forming a new class of conductor in which individual electrons decay into collective current-carrying motions of the electron fluid.
Frustration and the Kondo Effect in Heavy Fermion Materials
The observation of a separation between the antiferromagnetic phase boundary and the small-large Fermi surface transition in recent experiments has led to the proposal that frustration is an…
Hall-effect evolution across a heavy-fermion quantum critical point
Measurements of the low-temperature Hall coefficient (RH)—a measure of the Fermi surface volume—in the heavy-fermion metal YbRh2Si2 upon field-tuning it from an antiferromagnetic to a paramagnetic state are reported.