Field-Dependent Hall Effect in Single Crystal Heavy Fermion YbAgGe below 1K
arXiv:cond-mat/0507338 · doi:10.1103/PhysRevB.72.172413
Abstract
We report the results of a low temperature (T >= 50 mK) and high field (H <= 180 kOe) study of the Hall resistivity in single crystals of YbAgGe, a heavy fermion compound that demonstrates field-induced non-Fermi-liquid behavior near its field-induced quantum critical point. Distinct features in the anisotropic, field-dependent Hall resistivity sharpen on cooling down and at the base temperature are close to the respective critical fields for the field-induced quantum critical point. The field range of the non-Fermi-liquid region decreases on cooling but remains finite at the base temperature with no indication of its conversion to a point for T -> 0. At the base temperature, the functional form of the field-dependent Hall coefficient is field direction dependent and complex beyond existing simple models thus reflecting the multi-component Fermi surface of the material and its non-trivial modification at the quantum critical point.
References in corpus (5)
- Hall-effect evolution across a heavy-fermion quantum critical point
- Magnetic Field Induced Non-Fermi-Liquid Behavior in YbAgGe Single Crystal
- Thermodynamic and transport properties of RAgGe (R=Tb-Lu) single crystals
- Anisotropic Hall Effect in Single Crystal Heavy Fermion YbAgGe
- Spin Fluctuation and Crystal Field Excitation of a Heavy Fermion Compound YbAgGe studied by Inelastic Neutron Scattering
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- Multiple regions of quantum criticality in YbAgGe
- Anomalous reduction of the Lorenz ratio at the quantum critical point in YbAgGe
- Hall effect in heavy-fermion metals
- Preserved entropy and fragile magnetism
- Low Temperature Thermodynamic Properties of the Heavy Fermion Compound YbAgGe Close to the Field-Induced Quantum Critical Point
- Ordered Phases and Quantum Criticality in Cubic Heavy Fermion Compounds
- Quantum oscillations in heavy fermion compound YbPtBi
- Search for Pressure Induced Quantum Criticality in YbFe2Zn20