A Single Molecule Kondo Switch: Multistability of Tetracyanoethylene on Cu(111)

被引：72

作者：

Choi, Taeyoung ^{[1
]}

Bedwani, Stephane ^{[2
,3
]}

Rochefort, Alain ^{[2
,3
]}

Chen, Chia-Yi ^{[1
]}

Epstein, Arthur J. ^{[1
]}

Gupta, Jay A. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[2] Ecole Polytech, Dept Genie Phys, Montreal, PQ H3C 3A7, Canada

[3] Ecole Polytech, RQMP, Montreal, PQ H3C 3A7, Canada

来源：

NANO LETTERS | 2010年 / 10卷 / 10期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

Scanning tunneling microscopy; scanning tunneling spectroscopy; organic magnets; charge transfer; Rondo resonance; tetracyanoethylene; VIBRATIONAL SPECTROSCOPY; CHARGE-TRANSFER; TEMPERATURE; MICROSCOPY; RESONANCE; JUNCTIONS; SPECTRA; METALS; STATES;

D O I：

10.1021/nl1024563

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single tetracyanoethyelene (TCNE) molecules on Cu(111) are reversibly switched among five states by applying voltage pulses with the up of a scanning tunneling microscope A pronounced Rondo resonance in tunneling spectroscopy indicates that one of the states is magnetic Side bands of the Rondo resonance appear at energies which correspond to inter- and intramolecular vibrational modes Density functional theory suggests that molecular deformation changes the occupancy in TCNE's molecular orbitals, thus producing the magnetic state

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收藏

页码：4175 / 4180

页数：6

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