Low Temperature Physics Laboratory
Chief Scientist
Kimitoshi KONO (D.Sci.)
We study quantum phenomena in the system from nano to macroscopic scale at low and ultra-low temperatures. 1) Quantum properties of low dimensional systems consisting of electrons, ions and atomic hydrogen formed on the helium surface: Recent research topics include transport properties of the 2D Wigner solid, transport of microwave excited 2D electrons, transport of an ion pool, flow of adsorbed 3He film, and properties of solid He. Rotating cryostat and ultra-low temperature cryostat are used. In addition, we develop manipulation of single electrons on liquid He. 2) We study quantum electron/photo/spin transport in nano-sclae systems, for example, metal and semiconductor quantum dots with the use of nano-fabrication techniques. Device application and quantum information processing are also in our scope.
- Development of nano-scale electronic devices and physics of electrons, photons, and spins
- Fascinating hydrodynamics of superfluid 3He
- Free Surface and adsorbed films of 3He
- Manipulation of single electrons on liquid helium surface
- Solid Helium
- March,29.2010
- Spin-dependent transmission and capture of electrons successfully accomplished using artificial atoms with different magnetic properties
- February 18,2011
- Finding solid ground
Experimental evidence adds to the likelihood of the existence of supersolids, an exotic phase of matter
- February 10,2011
- A novel vanishing act
Microwave photons can nullify the conductivity of electrons confined to the surface of liquid helium
- February 26, 2010
- Strong and free electrons
Long-predicted physical effects confirmed for the first time by a model system of strongly interacting electrons
- May 15, 2009
- Using superfluid helium-3 to explore new phenomena
- Konstantinov D. and Kono K.:
"Photon-Induced Vanishing of Magnetoconductance in 2D Electrons on Liquid Helium"
Phys. Rev. Lett. 105, 226801 (2010) [4 pages] - Choi H, Takahashi D, Kono K, and Kim E.:
"Evidence of Supersolidity in Rotating Solid Helium"
Science 330 (2010) 1512-1515 - Huang SM, Tokura Y, Akimoto H, Kono K, Lin JJ, Tarucha S, and Ono K.:
"Spin Bottleneck in Resonant Tunneling through Double Quantum Dots with Different Zeeman Splittings"
Phys. Rev. Lett. 104, 136801 (2010) [4 pages] - Konstantinov D and Kono K.:
"Resonant correlation-induced optical bistability in an electron system on liquid helium"
Phys. Rev. Lett. 103, 096801 (2009) [4 pages] - Konstantinov D, Dykman MI, Lea MJ, Monarkha YP, and Kono K.:
"Resonant Correlation-Induced Optical Bistability in an Electron System on Liquid Helium"
Phys. Rev. Lett. 103, 096801 (2009) [4 pages] - Ikegami H, Akimoto H, and Kono K.:
"Nonlinear Transport of the Wigner Solid on Superfluid 4He in a Channel Geometry"
Phys. Rev. Lett. 102, 046807 (2009) [4 pages] - Huang SM, Lee TC, Akimoto H, Kono K, and Lin JJ.:
"Observation of Strong Electron Dephasing in Highly Disordered Cu93Ge4Au3 Thin Films"
Phys. Rev. Lett. 99 04660 (2007) [4 pages] - Konstantinov D, Isshiki H, Monarkha YP, Akimoto H, Shirahama K, Kono K.:
"Microwave-Resonance-Induced Resistivity: Evidence of Ultrahot Surface-State Electrons on 3He"
Phys. Rev. Lett. 98 235302 (2007) [4 pages] - Ikegami H and Kono K.:
"Texture of Superfluid 3He Probed by a Wigner Solid"
Phys. Rev. Lett., 97, 165303 (2006) [4 pages] - Monarkha YP and Kono K.:
"Two-Dimensional Coulomb Liquids and Solids"
Springer Series in Solid-State Sciences, 142, Springer, (2004) [346 pages, 109 figures]