STM STUDIES OF ISOLATED Mn12-Ph SINGLE-MOLECULE MAGNETS-Reference-Cited by-同舟云学术

STM STUDIES OF ISOLATED Mn12-Ph SINGLE-MOLECULE MAGNETS

Published:2013-03 Issue:01 Volume:03 Page:1350004
ISSN:2010-3247
Container-title:SPIN
language:en
Short-container-title:SPIN

Author:

REAVES K.¹²³,KIM K.³,IWAYA K.³,HITOSUGI T.³,KATZGRABER H. G.¹²⁴,ZHAO H.⁵,DUNBAR K. R.⁵,TEIZER W.¹²³

Affiliation:

1. Materials Science and Engineering, Texas A&M University, College Station, TX 77843-3003, USA

2. Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843-4242, USA

3. WPI-AIMR, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai 980-8577, Japan

4. Theoretische Physik, ETH Zurich, CH-8093 Zurich, Switzerland

5. Department of Chemistry, Texas A&M University, College Station, TX 77842-3012, USA

Abstract

We have studied Mn12O12(C6H5COO)16(H2O)4 (Mn12-Ph) single-molecule magnets on highly ordered pyrolytic graphite (HOPG) using low-temperature scanning tunneling microscopy (LT-STM) experiments. We report Mn12-Ph in isolation, resembling single molecules with metallic core atoms and organic outer ligands. The local tunneling current observed within the molecular structure shows a strong bias voltage dependency, which is distinct from that of the HOPG surface. Furthermore, evidence of internal inhomogeneity in the local density of states has been observed with high spatial resolution, and this inhomogeneity appears to be due to localized metallic behavior. These results facilitate magneto-metric studies of single-molecule magnets in isolation. As compared to bulk crystal studies, our experiments allow the specific investigation of atomic sites in the molecule.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

Link

https://www.worldscientific.com/doi/pdf/10.1142/S2010324713500045

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