منابع مشابه
Phase diagram of heavy fermion systems
The Meccano of heavy fermion systems is shown on different cases going from anomalous monochalcogenides to cerium intermetallic compounds with special focus on the ideal case of the CeRu2Si2 series. Discussion is made in the frame of the interplay between valence, electronic structure (Fermi surface), and magnetism. The nice tools given by the temperature, the pressure, and the magnetic field a...
متن کاملHigh-field phase diagram of the heavy-fermion metal YbRh2Si2
The tetragonal heavy-fermion (HF) metal YbRh2Si2 (Kondo temperature TK ≈ 25 K) exhibits a magnetic field-induced quantum critical point related to the suppression of very weak antiferromagnetic (AF) ordering (TN = 70 mK) at a critical field of Bc = 0.06 T (B ⊥ c). To understand the influence of magnetic fields on quantum criticality and the Kondo effect, we study the evolution of various thermo...
متن کاملGlobal Magnetic Phase Diagram and Local Quantum Criticality in Heavy Fermion Metals
We address the global magnetic phase diagram of Kondo lattice systems. Through the distinct Fermi surface properties of the various phases at zero temperature, we argue that the phase diagram supports two classes of quantum critical point. One of these describes a direct transition from a magnetic metal phase with localized f−electrons to a paramagnetic one with itinerant f−electrons. This resu...
متن کاملGeneric phase diagram of Fermion superfluids with population imbalance.
It is shown by microscopic calculations for trapped imbalanced Fermi superfluids that the gap function always has sign changes, i.e., the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO)-like state, up to a critical imbalance P(c), beyond which normal state becomes stable, at temperature T=0. A temperature-versus-pressure phase diagram is constructed, where the BCS state without sign change is stable on...
متن کاملNeutron Scattering Studies of Heavy Fermion Systems
Synopsis We review the results of recent studies of the elastic and inelastic neutron scattering from a variety of heavy fermion compounds. This class of materials exhibits a rich variety of ground states: an-tiferromagnetically ordered, superconducting, semiconducting, and paramagnetic. Neutron scattering from single crystals and powders has been a productive tool for probing the magnetic orde...
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ژورنال
عنوان ژورنال: Journal of Magnetism and Magnetic Materials
سال: 2004
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2003.11.030