Observation of plastic deformation in freestanding single crystal Au nanowires

Dongyun LEE; Manhong ZHAO; Xiaoding WEI; Xi CHEN; Seong C. JUN; James HONE; Erik G. HERBERT; Warren C. OLIVER; Jeffrey W. KYSAR

doi:10.1063/1.2354033

Observation of plastic deformation in freestanding single crystal Au nanowires

Dongyun LEE, Manhong ZHAO, Xiaoding WEI, Xi CHEN, Seong C. JUN, James HONE, Erik G. HERBERT, Warren C. OLIVER, Jeffrey W. KYSAR^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

8 Citations (Scopus)

Abstract

Freestanding single crystal nanowires of gold were fabricated from a single grain of pure gold leaf by standard lithographic techniques, with center section of 7 μm in length, 250 nm in width, and 100 nm in thickness. The ends remained anchored to a silicon substrate. The specimens were deflected via nanoindenter until plastic deformation was achieved. Nonlocalized and localized plastic deformations were observed. The resulting force-displacement curves were simulated using continuum single crystal plasticity. A set of material parameters which closely reproduce the experimental results suggests that the initial critical resolved shear stress was as high as 135 MPa. © 2006 American Institute of Physics.

Original language	English
Article number	111916
Journal	Applied Physics Letters
Volume	89
Issue number	11
DOIs	https://doi.org/10.1063/1.2354033
Publication status	Published - 11 Sept 2006
Externally published	Yes

Funding

Support from AFOSR FA5550-06-1-0214 and NSF CMS-0134226 and NSF CMS-0407743 is gratefully acknowledged. In addition, this work has used the shared experimental facilities that are supported primarily by the MRSEC Program of the National Science Foundation under Award No. DMR-0213574 and by the New York State Office of Science, Technology and Academic Research (NYSTAR).

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title = "Observation of plastic deformation in freestanding single crystal Au nanowires",

abstract = "Freestanding single crystal nanowires of gold were fabricated from a single grain of pure gold leaf by standard lithographic techniques, with center section of 7 μm in length, 250 nm in width, and 100 nm in thickness. The ends remained anchored to a silicon substrate. The specimens were deflected via nanoindenter until plastic deformation was achieved. Nonlocalized and localized plastic deformations were observed. The resulting force-displacement curves were simulated using continuum single crystal plasticity. A set of material parameters which closely reproduce the experimental results suggests that the initial critical resolved shear stress was as high as 135 MPa. {\textcopyright} 2006 American Institute of Physics.",

author = "Dongyun LEE and Manhong ZHAO and Xiaoding WEI and Xi CHEN and JUN, {Seong C.} and James HONE and HERBERT, {Erik G.} and OLIVER, {Warren C.} and KYSAR, {Jeffrey W.}",

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T1 - Observation of plastic deformation in freestanding single crystal Au nanowires

AU - LEE, Dongyun

AU - ZHAO, Manhong

AU - WEI, Xiaoding

AU - CHEN, Xi

AU - JUN, Seong C.

AU - HONE, James

AU - HERBERT, Erik G.

AU - OLIVER, Warren C.

AU - KYSAR, Jeffrey W.

PY - 2006/9/11

Y1 - 2006/9/11

N2 - Freestanding single crystal nanowires of gold were fabricated from a single grain of pure gold leaf by standard lithographic techniques, with center section of 7 μm in length, 250 nm in width, and 100 nm in thickness. The ends remained anchored to a silicon substrate. The specimens were deflected via nanoindenter until plastic deformation was achieved. Nonlocalized and localized plastic deformations were observed. The resulting force-displacement curves were simulated using continuum single crystal plasticity. A set of material parameters which closely reproduce the experimental results suggests that the initial critical resolved shear stress was as high as 135 MPa. © 2006 American Institute of Physics.

AB - Freestanding single crystal nanowires of gold were fabricated from a single grain of pure gold leaf by standard lithographic techniques, with center section of 7 μm in length, 250 nm in width, and 100 nm in thickness. The ends remained anchored to a silicon substrate. The specimens were deflected via nanoindenter until plastic deformation was achieved. Nonlocalized and localized plastic deformations were observed. The resulting force-displacement curves were simulated using continuum single crystal plasticity. A set of material parameters which closely reproduce the experimental results suggests that the initial critical resolved shear stress was as high as 135 MPa. © 2006 American Institute of Physics.

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U2 - 10.1063/1.2354033

DO - 10.1063/1.2354033

M3 - Journal Article (refereed)

SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 11

M1 - 111916

ER -

Observation of plastic deformation in freestanding single crystal Au nanowires

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