Scanning probe microscopy of cleaved molybdates: {alpha}MoO{sub 3}(010), Mo{sub 18}O{sub 52}(100), Mo{sub 8}O{sub 23}(010), and {eta}-Mo{sub 4}O{sub 11}(100)

Smith, R L; Rohrer, G S

doi:10.1006/jssc.1996.0213

Title: Scanning probe microscopy of cleaved molybdates: {alpha}MoO{sub 3}(010), Mo{sub 18}O{sub 52}(100), Mo{sub 8}O{sub 23}(010), and {eta}-Mo{sub 4}O{sub 11}(100)

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Abstract

Scanning probe microscopy was used to examine the cleaved surfaces of four binary molybdates: {alpha}-MoO{sub 3}(101), Mo{sub 18}O{sub 52}(100), Mo{sub 8}O{sub 23}(010), and {eta}-Mo{sub 4}O{sub 11}(100). The Mo{sub 18}O{sub 52}(100) and Mo{sub 8}O{sub 23}(010) surfaces were imaged in air and vacuum using scanning tunneling microscopy (STM). The contrast associated with two types of surface/crystallographic shear (CS) plane intersections has been unambiguously identified; shear normal to the surface creates a line of vertical relief 1.5 {Angstrom} high and shear in the surface plane creates a line of dark contrast. The contrast from the surface/CS plane intersection arises, in part, from local variations in the electronic properties. These signatures are easily distinguished form features on the fully oxidized {alpha}-MoO{sub 3}(010) surface. STM images of {eta}-Mo{sub 4}O{sub 11}(100) reveal a surface terminated by tetrahedral groups. In each case, the authors find that the atomic-scale contrast can be interpreted based on the arrangement of surface polyhedra that is expected to result from cleavage of the longest, weakest bonds.

Authors:

Smith, R L; Rohrer, G S ^[1]

Carnegie Mellon Univ., Pittsburgh, PA (United States)

Publication Date:: Sat Jun 01 00:00:00 EDT 1996

OSTI Identifier:: 390902

Resource Type:: Journal Article

Journal Name:: Journal of Solid State Chemistry

Additional Journal Information:: Journal Volume: 124; Journal Issue: 1; Other Information: PBD: Jun 1996

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; MOLYBDATES; MICROSCOPY; MILLER INDICES; ELECTRONIC STRUCTURE

Citation Formats


                    Smith, R L, and Rohrer, G S. Scanning probe microscopy of cleaved molybdates: {alpha}MoO{sub 3}(010), Mo{sub 18}O{sub 52}(100), Mo{sub 8}O{sub 23}(010), and {eta}-Mo{sub 4}O{sub 11}(100).  United States: N. p., 1996. 
        Web.  doi:10.1006/jssc.1996.0213.

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                    Smith, R L, & Rohrer, G S. Scanning probe microscopy of cleaved molybdates: {alpha}MoO{sub 3}(010), Mo{sub 18}O{sub 52}(100), Mo{sub 8}O{sub 23}(010), and {eta}-Mo{sub 4}O{sub 11}(100).  United States.  https://doi.org/10.1006/jssc.1996.0213

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                    Smith, R L, and Rohrer, G S. 1996.  
        "Scanning probe microscopy of cleaved molybdates: {alpha}MoO{sub 3}(010), Mo{sub 18}O{sub 52}(100), Mo{sub 8}O{sub 23}(010), and {eta}-Mo{sub 4}O{sub 11}(100)".  United States.  https://doi.org/10.1006/jssc.1996.0213.

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@article{osti_390902,

  title        = {Scanning probe microscopy of cleaved molybdates: {alpha}MoO{sub 3}(010), Mo{sub 18}O{sub 52}(100), Mo{sub 8}O{sub 23}(010), and {eta}-Mo{sub 4}O{sub 11}(100)},

  author       = {Smith, R L and Rohrer, G S},

  abstractNote = {Scanning probe microscopy was used to examine the cleaved surfaces of four binary molybdates: {alpha}-MoO{sub 3}(101), Mo{sub 18}O{sub 52}(100), Mo{sub 8}O{sub 23}(010), and {eta}-Mo{sub 4}O{sub 11}(100). The Mo{sub 18}O{sub 52}(100) and Mo{sub 8}O{sub 23}(010) surfaces were imaged in air and vacuum using scanning tunneling microscopy (STM). The contrast associated with two types of surface/crystallographic shear (CS) plane intersections has been unambiguously identified; shear normal to the surface creates a line of vertical relief 1.5 {Angstrom} high and shear in the surface plane creates a line of dark contrast. The contrast from the surface/CS plane intersection arises, in part, from local variations in the electronic properties. These signatures are easily distinguished form features on the fully oxidized {alpha}-MoO{sub 3}(010) surface. STM images of {eta}-Mo{sub 4}O{sub 11}(100) reveal a surface terminated by tetrahedral groups. In each case, the authors find that the atomic-scale contrast can be interpreted based on the arrangement of surface polyhedra that is expected to result from cleavage of the longest, weakest bonds.},

  doi          = {10.1006/jssc.1996.0213},

  url          = {https://www.osti.gov/biblio/390902},
  journal      = {Journal of Solid State Chemistry},
number       = 1,

  volume       = 124,

  place        = {United States},

  year         = {Sat Jun 01 00:00:00 EDT 1996},

  month        = {Sat Jun 01 00:00:00 EDT 1996}

}

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https://doi.org/10.1006/jssc.1996.0213

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