1k citations · 3.7k across the 17 of their papers we have counts for
5 papers · 1 filter
Optimizing the Bi_(2-x)Sb_(x)Te_(3-y)Se_(y) solid solutions to approach the intrinsic topological insulator regime
Zhi Ren, A. A. Taskin, Satoshi Sasaki +2
To optimize the bulk-insulating behavior in the topological insulator materials having the tetradymite structure, we have synthesized and characterized single-crystal samples of Bi…
Observations of two-dimensional quantum oscillations and ambipolar transport in the topological insulator Bi2Se3 achieved by Cd doping
Zhi Ren, A. A. Taskin, Satoshi Sasaki +2
We present a defect-engineering strategy to optimize the transport properties of the topological insulator Bi2Se3 to show a high bulk resistivity and clear quantum oscillations. St…
Electrochemical synthesis and superconducting phase diagram of Cu_xBi2Se3
M. Kriener, Kouji Segawa, Zhi Ren +4
The superconducting Cu_xBi_2Se_3 is an electron-doped topological insulator and is a prime candidate of the topological superconductor which still awaits discovery. The electrochem…
Observation of Dirac Holes and Electrons in a Topological Insulator
A. A. Taskin, Zhi Ren, Satoshi Sasaki +2
We show that in the new topological-insulator compound Bi_{1.5}Sb_{0.5}Te_{1.7}Se_{1.3} one can achieve a surfaced-dominated transport where the surface channel contributes up to 7…
Bulk superconducting phase with a full energy gap in the doped topological insulator Cu_xBi_2Se_3
M. Kriener, Kouji Segawa, Zhi Ren +2
The superconductivity recently found in the doped topological insulator Cu_xBi_2Se_3 offers a great opportunity to search for a topological superconductor. We have successfully pre…