A. Sawada

INTERLAYER COHERENCE IN UPSILON =1 AND UPSILON =2 BILAYER QUANTUM HALL STATES

We have measured the Hall-plateau width and the activation energy of the bilayer quantum Hall (BLQH) states at the Landau-level filling factor

Fermi surface of the heavy-fermion superconductor UPd2Al3

\nu=1

Anomalous Susceptibility of UPd2Al3 near the Upper Critical Field.

and 2 by tilting the sample and simultaneously changing the electron density in each quantum well. The phase transition between the commensurate and incommensurate states are confirmed at

Anomalous specific heat of the La-Ge system

\nu =1

dHvA effect on UPd2Al3

and discovered at

Magnetic, electrical and thermal properties of heavy fermion superconductor UPd/sub 2/Al/sub 3/

\nu =2

Two-axis goniometer for use in the mixing chamber of a dilution refrigerator

. In particular, three different

Unsaturation, supersaturation and demixing in 3He-4He mixtures

\nu =2

Simultaneous excitation of spins and pseudospins in the bilayer ν=1 quantum Hall state

BLQH states are identified; the compound state, the coherent commensurate state, and the coherent incommensurate state.

New silver powders with large surface area as heat exchanger materials

Abstract UPd2Al3 is a heavy fermion superconductor with T c ≊ 2 K co-existent with an antiferromagnetically ordered state (TN = 14.5 K. We report the angular dependence of the dHvA frequency, the effective cyclotron mass and the Dingle temperature. A comparison of the experimental results with band-structure calculations is made, revealing that 5f electrons in UPd2Al3 are fairly itinerant.