Scanning Tunneling Microscopy Study on Infinite-layer SrCuO<sub>2</sub> Films
ORAL
Abstract
We report on the growth of infinite-layer SrCuO2 films on SrTiO3 (001) substrate by molecular beam epitaxy. In situ scanning tunneling microscopy reveals a 2 × 2 reconstruction induced by oxygen vacancies, in consistent with the first-principles calculations that the terminated layer is CuO1.5. Depending on the film thickness and growth temperature, a striped structure is further observed on the surface of SrCuO2 films. Our results may pave a new way to directly study the superconducting layer in cuprates at the atomic scale.
*This work was financially supported by the National Science Foundation and Ministry of Science and Technology of China.
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Presenters
Yong Zhong
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua Univ.
Authors
Yong Zhong
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua Univ.
Sha Han
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua Univ.
Yang Wang
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua Univ.
Zhi-Ling Luo
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua Univ.
Can-Li Song
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua Univ.
XUCUN MA
Tsinghua Univ
Physics Department, Tsinghua University
Department of Physics, Tsinghua University
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua Univ.
Qikun Xue
Physics Department, Tsinghua University
Department of Physics, Tsinghua University
State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua Univ.
Tsinghua University
State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University
