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Reversibly Switching the Charge State and Adsorption Location of A Single Potassium Atom on Ultrathin CuO Films.
Peng, Zhantao; Di, Bin; Li, Wentao; Liu, Dan; Wen, Xiaojie; Zhu, Hao; Song, Huanjun; Zhang, Yajie; Yin, Cen; Zhou, Xiong; Wu, Kai.
Afiliação
  • Peng Z; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Di B; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Li W; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Liu D; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Wen X; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Zhu H; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Song H; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Zhang Y; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Yin C; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Zhou X; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
  • Wu K; BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
Angew Chem Int Ed Engl ; 59(34): 14321-14325, 2020 Aug 17.
Article em En | MEDLINE | ID: mdl-32485040
ABSTRACT
Potassium (K) cations are spontaneously formed upon thermal deposition of low-coverage K onto an ultrathin CuO monolayer grown on Cu(110) and they were explored by low-temperature scanning tunneling microscopy (STM) and X-ray photoemission spectroscopy. The formed K cations are highly immobile and thermally stable. The local work function around an individual K cation decreases by 1.5±0.3 eV, and a charging zone underneath it is established within about 1.0 nm. The cationic and neutral states of the K atom are switchable upon application of an STM bias voltage pulse, which is simultaneously accompanied by an adsorption site relocation.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article