Two-dimensional metal-organic coordination networks of Mn-7,7,8,8-tetracyanoquinodimethane assembled on Cu(100): Structural, electronic, and magnetic propertiesPhysical Review B - Condensed Matter and Materials Physics (2009)
A compound two-dimensional 2D monolayer mixing Mn atoms and 7,7,8,8-tetracyanoquinodimethane (TCNQ) molecules was synthesized by supramolecular assembly on a Cu100 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 densityfunctional 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 5µB with very weak coupling between adjacent Mn centers.
Citation InformationTsu-Chun Tseng, Chensheng Lin, X.Q. Shi, Steven L. Tait, et al.. "Two-dimensional metal-organic coordination networks of Mn-7,7,8,8-tetracyanoquinodimethane assembled on Cu(100): Structural, electronic, and magnetic properties" Physical Review B - Condensed Matter and Materials Physics Vol. 80 Iss. 15 (2009) p. 155458-1 - 155458-6 ISSN: 1550235X
Available at: http://works.bepress.com/mavanhove/93/