1. Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 10617, Taiwan
2. International Graduate Program of Molecular Science and Technology, National Taiwan University, Taipei 10617, Taiwan
3. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
4. Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
5. Department of Physics, National Taiwan Normal University, Taipei 11677, Taiwan
6. Department of Physics, National Taiwan University, Taipei 10617, Taiwan
7. Institute of Physics, Academia Sinica, Taipei 115201, Taiwan
8. International Graduate Program of Nano Science and Technology, National Taiwan University, Taipei 10617, Taiwan
9. Graduate Institute of Applied Physics, National Taiwan University, Taipei 10617, Taiwan
10. J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 182 23 Prague, Czech Republic
11. National Synchrotron Radiation Research Center (NSRRC), Hsinchu 300092, Taiwan
12. Physics Division, National Center for Theoretical Sciences, Taipei 10617, Taiwan
13. Center for Theoretical and Computational Physics, National Sun Yat-sen University, Kaohsiung 80424, Taiwan