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  4. Two-dimensional metal-organic coordination networks of Mn-7,7,8,8-tetracyanoquinodimethane assembled on Cu(100): Structural, electronic, and magnetic properties
 
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research article

Two-dimensional metal-organic coordination networks of Mn-7,7,8,8-tetracyanoquinodimethane assembled on Cu(100): Structural, electronic, and magnetic properties

Tseng, Tzu-Chun
•
Lin, Chensheng
•
Shi, Xingqiang
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2009
Physical Review B

A compound two-dimensional (2D) monolayer mixing Mn atoms and 7,7,8,8-tetracyanoquinodimethane (TCNQ) molecules was synthesized by supramolecular assembly on a Cu(100) surface under ultrahigh vacuum conditions. Its structural, electronic, and magnetic properties were analyzed by scanning tunneling microscopy experiment and theory, low-energy electron diffraction, x-ray photoemission spectroscopy, and density-functional theory calculations. The 2D compound has a long-range ordered square planar network structure consisting of fourfold coordinated Mn centers with a Mn: TCNQ ratio of 1:2. The electronic-state analysis revealed a complex charge-transfer scenario indicating strong bonding of TCNQ with both the Mn adsorbates and the Cu surface atoms. The calculations reveal that the Mn centers carry a magnetic moment close to 5 mu(B) with very weak coupling between adjacent Mn centers.

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Type
research article
DOI
10.1103/PhysRevB.80.155458
Web of Science ID

WOS:000271352000167

Author(s)
Tseng, Tzu-Chun
•
Lin, Chensheng
•
Shi, Xingqiang
•
Tait, Steven L.
•
Liu, Xiong
•
Starke, Ulrich
•
Lin, Nian
•
Zhang, Ruiqin
•
Minot, Christian
•
Van Hove, M. A.
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Date Issued

2009

Published in
Physical Review B
Volume

80

Article Number

155458

Subjects

Ray Photoelectron-Spectroscopy

•

Initio Molecular-Dynamics

•

Total-Energy Calculations

•

Augmented-Wave Method

•

Room-Temperature

•

Basis-Set

•

Surface

•

Chemistry

•

Films

•

Tcnq

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LSEN  
Available on Infoscience
November 30, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/59672
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