Terashima Taichi

Heavy Fermions in YbAl 3 Studied by the de Haas-van Alphen Effect

We carried out the de Haas-van Alphen (dHvA) experiment in YbAl 3 with the cubic crystal structure. One of the six dHvA branches, named β with a dHvA frequency of 4.5×10 7 Oe, is nearly spherical in topology and has a large cyclotron mass of 23.9 m 0 . The other branches were observed only in small angular regions centered at symmetrical directions. Their cyclotron masses are in the range from 13.5 to 17.4 m 0 . The topology of the Fermi surface cannot be explained by the conventional band model because the fully occupied 4 f -levels in YbAl 3 are below the Fermi level. A small alteration so as to shift upwards the 4 f -levels is necessary to fit to the experimental dHvA data. These give a direct evidence that the 4 f -electrons form heavy fermions at low temperatures, which is most likely related to the many-body Kondo effect.

Fermi Surface Properties, Metamagnetic Transition and Quantum Phase Transition of CeRu2Si2 and Its Alloys Probed by the dHvA Effect

This article describes the Fermi surface properties of CeRu

How Are Heavy and Itinerant Electrons Born in a Dilute Kondo Alloy

_2

Anomalous Field and Temperature Dependence of the dHvA Oscillations in PrPb3

Si

Fluctuating Superconductivity in the Strongly Correlated Organic Superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br

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Split Fermi Surfaces of the Spin–Orbit-Coupled Metal Cd2Re2O7 Probed by de Haas–van Alphen Effect

and its alloy systems CeRu

Magnetocaloric Effect in Layered Organic Conductor λ-(BETS)2FeCl4

_2

Diamagnetic Torque Signal and Temperature-Dependent Paramagnetism in Bi2Sr2CaCu2O8+δ

(Si

Anomalous Electronic State under Magnetic Fields around the Quantum Critical Point: dHvA Effect Study with Physical and Chemical Pressures

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De Haas–van Alphen Effect in UPd3

Ge