35 citations · 72 across the 5 of their papers we have counts for
6 papers
Single-electron transistors in electromagnetic environments
Michio Watanabe
The current-voltage (I-V) characteristics of single-electron transistors (SETs) have been measured in various electromagnetic environments. Some SETs were biased with one-dimension…
Circuit with small-capacitance high-quality Nb Josephson junctions
Michio Watanabe, Yasunobu Nakamura, Jaw-Shen Tsai
We have developed a fabrication process for nanoscale tunnel junctions which includes focused-ion-beam etching from different directions. By applying the process to a Nb/(Al-)Al_2O…
Small-Capacitance Josephson Junctions: One-Dimensional Arrays and Single Junctions
Michio Watanabe, David B. Haviland
We review experiments on small-capacitance Josephson junctions. When the Josephson junction is fabricated in the configuration of dc superconducting quantum interference device (SQ…
Quantum Effects in Small-Capacitance Single Josephson Junctions
Michio Watanabe, David B. Haviland
We have measured the current-voltage (I-V) characteristics of small-capacitance single Josephson junctions at low temperatures (T=0.02-0.6 K), where the strength of the coupling be…
Critical exponents for the metal-insulator transition of ^{70}Ge:Ga in magnetic fields
Michio Watanabe, Kohei M. Itoh, Masashi Morishita +2
We have measured the electrical conductivity of nominally uncompensated ^{70}Ge:Ga samples in magnetic fields up to B=8 T at low temperatures (T=0.05-0.5 K) in order to investigate…
Metal-Insulator Transition in Homogeneously Doped Germanium
Michio Watanabe
We have measured the electrical conductivity of Ge:Ga samples prepared by neutron-transmutation doping of isotopically enriched 70Ge single crystals in order to study the metal-ins…