Observation of spectral evolution during the formation of a Ni2 Kondo molecule

V. Madhavan; T. Jamneala; K. Nagaoka; W. Chen; Je Luen Li; Steven G. Louie; M. F. Crommie

Observation of spectral evolution during the formation of a Ni₂ Kondo molecule

V. Madhavan, T. Jamneala, K. Nagaoka, W. Chen, Je Luen Li, Steven G. Louie, M. F. Crommie

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Abstract

We have used atomic manipulation and scanning tunneling spectroscopy to study the evolution in electronic properties that occurs as two Ni atoms are merged into a single magnetic molecule on Au(111). We observe energetic shifting of molecular d-orbitals and a strong decrease in the molecular Kondo temperature as Ni-Ni separation is reduced to 3.4±0.3 Å. These results are qualitatively explained by a combination of a spin-1/2 s-d model and density-functional calculations.

Original language	English (US)
Article number	212411
Pages (from-to)	2124111-2124114
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	21
State	Published - Dec 1 2002
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Observation of spectral evolution during the formation of a Ni2 Kondo molecule",

abstract = "We have used atomic manipulation and scanning tunneling spectroscopy to study the evolution in electronic properties that occurs as two Ni atoms are merged into a single magnetic molecule on Au(111). We observe energetic shifting of molecular d-orbitals and a strong decrease in the molecular Kondo temperature as Ni-Ni separation is reduced to 3.4±0.3 {\AA}. These results are qualitatively explained by a combination of a spin-1/2 s-d model and density-functional calculations.",

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AU - Madhavan, V.

AU - Jamneala, T.

AU - Nagaoka, K.

AU - Chen, W.

AU - Li, Je Luen

AU - Louie, Steven G.

AU - Crommie, M. F.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - We have used atomic manipulation and scanning tunneling spectroscopy to study the evolution in electronic properties that occurs as two Ni atoms are merged into a single magnetic molecule on Au(111). We observe energetic shifting of molecular d-orbitals and a strong decrease in the molecular Kondo temperature as Ni-Ni separation is reduced to 3.4±0.3 Å. These results are qualitatively explained by a combination of a spin-1/2 s-d model and density-functional calculations.

AB - We have used atomic manipulation and scanning tunneling spectroscopy to study the evolution in electronic properties that occurs as two Ni atoms are merged into a single magnetic molecule on Au(111). We observe energetic shifting of molecular d-orbitals and a strong decrease in the molecular Kondo temperature as Ni-Ni separation is reduced to 3.4±0.3 Å. These results are qualitatively explained by a combination of a spin-1/2 s-d model and density-functional calculations.

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IS - 21

M1 - 212411

ER -

Observation of spectral evolution during the formation of a Ni₂ Kondo molecule

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