Selected area nanodiffraction fluctuation electron microscopy for studying structural order in amorphous solids

S. O. Hruszkewycz; T. Fujita; Mingwei W. Chen; Todd C. Hufnagel

doi:10.1016/j.scriptamat.2007.10.009

Selected area nanodiffraction fluctuation electron microscopy for studying structural order in amorphous solids

S. O. Hruszkewycz, T. Fujita, Mingwei W. Chen, Todd C. Hufnagel

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We present a selected area nanodiffraction fluctuation electron microscopy (FEM) technique implemented on a conventional transmission electron microscope. Nanodiffraction patterns from a Pd-based metallic glass, collected using a selected area aperture 15 × 15 nm in effective size, display inhomogeneous speckling due to the small volume sampled. We compare the azimuthal intensity variance from these patterns to the spatial intensity variance from tilted dark-field measurements on the same specimens and find reasonable qualitative agreement, including features characteristic of medium-range order.

Original language	English
Pages (from-to)	303-306
Number of pages	4
Journal	Scripta Materialia
Volume	58
Issue number	4
DOIs	https://doi.org/10.1016/j.scriptamat.2007.10.009
Publication status	Published - 2008 Feb
Externally published	Yes

Keywords

Amorphous materials
Electron diffraction
Fluctuation electron microscopy
Metallic glasses
Nanostructure

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2007.10.009

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title = "Selected area nanodiffraction fluctuation electron microscopy for studying structural order in amorphous solids",

abstract = "We present a selected area nanodiffraction fluctuation electron microscopy (FEM) technique implemented on a conventional transmission electron microscope. Nanodiffraction patterns from a Pd-based metallic glass, collected using a selected area aperture 15 × 15 nm in effective size, display inhomogeneous speckling due to the small volume sampled. We compare the azimuthal intensity variance from these patterns to the spatial intensity variance from tilted dark-field measurements on the same specimens and find reasonable qualitative agreement, including features characteristic of medium-range order.",

keywords = "Amorphous materials, Electron diffraction, Fluctuation electron microscopy, Metallic glasses, Nanostructure",

author = "Hruszkewycz, {S. O.} and T. Fujita and Chen, {Mingwei W.} and Hufnagel, {Todd C.}",

note = "Funding Information: The authors gratefully acknowledge useful discussions with P.M. Voyles, as well as assistance with the microscopy from K. Livi, D. Horspool, and S. Ito. S.O.H. and T.C.H. gratefully acknowledge financial support from the National Science Foundation under Grant No. DMR-0307009 and the NSF/JSPS East Asia and Pacific Summer Institutes Program. M.W.C. and T.F. thank the Grant-In-Aid for Science Research, Priority Area “Materials Science of Bulk Metallic Glasses” and the Japanese Ministry of Education, Culture, Sports, and Science for financial support.",

year = "2008",

month = feb,

doi = "10.1016/j.scriptamat.2007.10.009",

language = "English",

volume = "58",

pages = "303--306",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

number = "4",

}

TY - JOUR

T1 - Selected area nanodiffraction fluctuation electron microscopy for studying structural order in amorphous solids

AU - Hruszkewycz, S. O.

AU - Fujita, T.

AU - Chen, Mingwei W.

AU - Hufnagel, Todd C.

N1 - Funding Information: The authors gratefully acknowledge useful discussions with P.M. Voyles, as well as assistance with the microscopy from K. Livi, D. Horspool, and S. Ito. S.O.H. and T.C.H. gratefully acknowledge financial support from the National Science Foundation under Grant No. DMR-0307009 and the NSF/JSPS East Asia and Pacific Summer Institutes Program. M.W.C. and T.F. thank the Grant-In-Aid for Science Research, Priority Area “Materials Science of Bulk Metallic Glasses” and the Japanese Ministry of Education, Culture, Sports, and Science for financial support.

PY - 2008/2

Y1 - 2008/2

N2 - We present a selected area nanodiffraction fluctuation electron microscopy (FEM) technique implemented on a conventional transmission electron microscope. Nanodiffraction patterns from a Pd-based metallic glass, collected using a selected area aperture 15 × 15 nm in effective size, display inhomogeneous speckling due to the small volume sampled. We compare the azimuthal intensity variance from these patterns to the spatial intensity variance from tilted dark-field measurements on the same specimens and find reasonable qualitative agreement, including features characteristic of medium-range order.

AB - We present a selected area nanodiffraction fluctuation electron microscopy (FEM) technique implemented on a conventional transmission electron microscope. Nanodiffraction patterns from a Pd-based metallic glass, collected using a selected area aperture 15 × 15 nm in effective size, display inhomogeneous speckling due to the small volume sampled. We compare the azimuthal intensity variance from these patterns to the spatial intensity variance from tilted dark-field measurements on the same specimens and find reasonable qualitative agreement, including features characteristic of medium-range order.

KW - Amorphous materials

KW - Electron diffraction

KW - Fluctuation electron microscopy

KW - Metallic glasses

KW - Nanostructure

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UR - http://www.scopus.com/inward/citedby.url?scp=36349019186&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2007.10.009

DO - 10.1016/j.scriptamat.2007.10.009

M3 - Article

AN - SCOPUS:36349019186

VL - 58

SP - 303

EP - 306

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 4

ER -

Selected area nanodiffraction fluctuation electron microscopy for studying structural order in amorphous solids

Abstract

Keywords

ASJC Scopus subject areas

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