Two-dimensional superconductivity at (110) LaAlO3/SrTiO3 interfaces Academic Article uri icon

abstract

  • 2014 AIP Publishing LLC. Novel low dimensional quantum phenomena at (110) LaAlO3/SrTiO3 (LAO/STO) interfaces are expected after the quasi two dimensional electron gas similar to that of (001) LAO/STO interfaces was found at this (110) system. Here, we report the two dimensional superconductivity with a superconducting transition temperature of 184 mK at (110) LAO/STO interfaces. The two dimensional characteristics of the superconductivity are consistent with our analysis based on a Berezinskii-Kosterlitz-Thouless transition. The estimated superconducting layer thickness is about 18 nm. This discovery may inspire new studies of LAO/STO interfaces and open additional opportunities for design of novel oxide electronic devices.

published proceedings

  • Applied Physics Letters

author list (cited authors)

  • Han, Y., Shen, S., You, J., Li, H., Luo, Z., Li, C., ... Nie, J.

citation count

  • 34

complete list of authors

  • Han, Yin-Long||Shen, Sheng-Chun||You, Jie||Li, Hai-Ou||Luo, Zhong-Zhong||Li, Cheng-Jian||Qu, Guo-Liang||Xiong, Chang-Min||Dou, Rui-Fen||He, Lin||Naugle, Don||Guo, Guo-Ping||Nie, Jia-Cai

publication date

  • November 2014