About the Authors
- Linyuan Lü
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Affiliations Web Sciences Center, University of Electronic Science and Technology of China, Chengdu, People's Republic of China, Department of Physics, University of Fribourg, Fribourg, Switzerland
- Zi-Ke Zhang
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Affiliation Department of Physics, University of Fribourg, Fribourg, Switzerland
- Tao Zhou
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* E-mail: zhutou@ustc.edu
Affiliations Web Sciences Center, University of Electronic Science and Technology of China, Chengdu, People's Republic of China, Department of Physics, University of Fribourg, Fribourg, Switzerland, Department of Modern Physics, University of Science and Technology of China, Hefei, People's Republic of China
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: LL TZ. Performed the experiments: LL ZKZ. Analyzed the data: LL ZKZ TZ. Wrote the paper: TZ.