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Electronic Structure of Layered and Linear Chain Materials by Scanning Probe Microscopy

Published online by Cambridge University Press:  21 February 2011

R.V. Coleman ,
Z. Dai ,
Y. Gong ,
C.G. Slough  and
Q. Xue
R.V. Coleman
Affiliation:
University of Virginia, Charlottesville, VA 22901
Z. Dai
Affiliation:
University of Virginia, Charlottesville, VA 22901
Y. Gong
Affiliation:
University of Virginia, Charlottesville, VA 22901
C.G. Slough
Affiliation:
University of Virginia, Charlottesville, VA 22901
Q. Xue
Affiliation:
University of Virginia, Charlottesville, VA 22901
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Abstract

Transition metal impurities such as Fe, Ni, and Co can be intercalated into the van der Waals gap of layer structure dichalcogenides and these modify the charge-density wave (CDW) structure and CDW energy gaps. Ordered superlattices associated with antiferromagnetic phases can be detected by both scanning tunneling microscopy (STM) and atomic force microscopy (AFM). STM spectroscopy indicates the formation of a mixed spin-density-wave (SDW) and CDW (SDWCDW) in the doped materials. The quasi-one dimensional trichalcogenide NbSe3 exhibits two CDW transitions and the presence of dilute transition metal impurities produces ordered superlattices due to long range screening of the impurities.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 332: Symposium U – Determining Nanoscale Physical Properties of Materials by Microscopy and Spectroscopy , 1994 , 573
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

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