Publications

2014

L. Montemayor, L. Meza, J.R. Greer
Design and Fabrication of Hollow Rigid Nanolattices Via Two-Photon Lithography
Advanced Engineering Materials 16 (2), 184-189 (2014)

Julia R. Greer
Perspective: Nanoframce Catalysts
Science 343 (6177), 1319-1320 (2014)

S.-W. Lee, Y. Cheng, I. Ryu and J.R. Greer
Cold-temperature deformation of nano-sized tungsten and niobium as revealed by in-situ nano-mechanical experiments
China Science Letters 57 (4), 652-662 (2014)

2013

L. Meza and J.R. Greer
Mechanical Characterization of Hollow Ceramic Nanolattices
Journal of Materials Science 49 (6), 2496-2508 (2013)

J. Rys, L. Valdevit, T.A. Schaedler, A.J. Jacobsen, W.B. Carter and J.R. Greer
Fabrication and Deformation of Hollow Metallic Glass Micro-Lattices
Advanced Engineering Materials (DOI: 10.1002/adem.201300454, 2013)

S. Pathak, N. Mohan, E. Decolvenaere, A. Needleman, M. Bedewy, A.J. Hart and J.R. Greer
Local Relative Density Modulates Failure and Strength in Vertically Aligned Carbon Nanotubes
ACS Nano 7 (10), 8593-8604 (2013)

X.W. Gu, Z. Wu, Y.-W. Zhang, D.J. Srolovitz, J.R. Greer
Microstructure versus Flaw: Mechanisms of Failure and Strength in Nanostructures
Nano Letters 13 (11), 5703-5709 (2013)

D. Jang, L.R. Meza, F. Greer, J.R. Greer
Fabrication and deformation of three-dimensional hollow ceramic nanosctructures
Nature Materials 12 (10), 893-898 (2013)

D.Z. Chen, D. Jang, K.M. Guan, Q. An, W.A. Goddard, III, J.R. Greer
Nano-Metallic Glasses: Size Reduction Brings Ductility, Surface State Drives its Extent
Nano Letters 13 (9), 4462-4468 (2013)

S.-W. Lee, L.R. Meza, J.R. Greer
Cryogenic nanoindendation size effect in [001]-oriented face-centered cubic and body-centered cubic single crystals
Applied Physics Letters 103, 101906 (2013)

J.R. Greer
Nanotwinned metals: It's all about imperfections
Nature Materials 12 (8), 689-690 (2013)

R. Maaß, P.M. Derlet, J.R. Greer
Small Scale Plasticity: Insights into Dislocation Avalanche Velocities
Scripta Materialia 69 (8), 586-589 (2013)

Z.H. Aitken, D. Jang, C.R. Weinberger, J.R. Greer
Grain boundary sliding in aluminum nano-bi-crystals deformed at room temperature
Small 10 (1), 100-108 (2014)

P. Pour Shahid Saeed Abadi, S.B. Hutchens, J.R. Greer, B.A. Cola, S. Graham
Buckling-driven delamination of carbon nanotube forests
Applied Physics Letters 102 (22), 223103 (2013)

D. Jang, R. Maaß, G. Wang, P.K. Liaw, J.R. Greer
Fatigue Deformation of Micro-sized Metallic Glasses
Scripta Materialia 68 (10), 773-776 (2013)

Q. Guo, P. Landau, P. Hosemann, Y. Wang, J. R. Greer
Helium Implantation Effects on the Compressive Response of Cu Nano-Pillars
Small 9 (5), 691-696 (2013)

P. Landau, Q. Guo, K. Harrat, J.R. Greer
The Effect of He Implantation on the Tensile Properties and Microstructures of Cu/Fe Nano-Bicrystals
Advanced Functional Materials 23 (10), 1281-1288 (2013)

O. Kovalenko, J.R. Greer, and E. Rabkin
Grain boundary diffusion mechanism in solid start dewetting of thin iron films on sapphire substrates
Acta Materialia 61 (9), 3148-3156 (2013)

Z.X. Wu, Y.W. Zhang, M.H. Jhon, J.R. Greer, D.J. Srolovitz
Nanostructure and surface effects on yield in Cu nanowires
Acta Materialia 61 (6), 1831-1842 (2013)

A.T. Jennings, C.R. Weinberger, S.-W. Lee, Z.H. Aitken, L. Mez, J.R. Greer
Modeling Dislocation Nucleation Strengths in Pristine Metallic Nanowires under Experimental Conditions
Acta Materialia 61 (6), 2244-2259 (2013)

J. Lian, S.-W. Lee, L. Valdevit, M. I. Baskes, and J. R. Greer
Emergence of Film Thickness-Dependent Tensile Modulus in Nanocrystalline Ni Films
Scripta Materialia 68 (5), 261-264 (2013)

S.-W. Lee, A.T. Jennings, and J.R Greer
Emergence of enhanced strengths and Bauschinger effect in conformally passivated copper nanopillars as revealed by dislocation dynamics
Acta Materialia 61 (6), 1872-1885 (2013)

2012

G.J. Tucker, Z.H. Aitken, J.R. Greer, C.R. Weinberger
The mechanical behavior and deformation of bicrystalline nanowires
Modelling and Simulation in Materials Science and Engineering 21 (1), 015004-015022 (2012)

S. Pathak, N. Mohan, P. Pour Shahid Saeed Abadia, S. Graham, B.A. Cola, J.R. Greer
Compressive response of vertically aligned carbon nanotube films gleaned from in situ flat-punch indentations
Journal of Materials Research 28 (7), 984-997 (2012)

X. Wendy Gu, Colleen N. Loynachan, Zhaoxuan Wu, Yong-Wei Zhang, David J.Srolovitz, and Julia R. Greer
Size-Dependent Deformation of Nanocrystalline Pt Nanopillars
Nano Letters 12 (12), 6385-6392 (2012)

J.R. Greer, D. Jang, and X. Wendy Gu
Exploring Deformation Mechanisms in Nanostructured Materials
Journal of Materials 64 (10), 1241-1252 (2012)

A. Needleman, S.B. Hutchens, N. Mohan, J.R. Greer
Deformation of plastically compressible hardening-softening-hardening solids
Acta Mechanica Sinica 28 (4), 1115-1124 (2012)

N. Friedman, A. T. Jennings, G. Tsekenis, J.-Y. Kim, J. T. Uhl, J. R. Greer, and K. A. Dahmen
Statistics of dislocation slip-avalanches in nano-sized single crystals show tuned critical behavior predicted by a simple mean field model
Phys. Rev. Lett. 109 (9), 095507 (2012)

D. Jang, X. Li, H. Gao, and J.R. Greer
Deformation mechanisms in nanotwinned metal nanopillars
Nature Nanotechnology 7, 594-601 (2012)

C. J. Cho, L. E. O Leary, N.S. Lewis, J.R. Greer
In-situ nano-mechanical measurements of interfacial strength in membrane-embedded chemically functionalized Si microwires in flexible solar cells
Nano Letters. 12 (6), 3296-3301 (2012)


S.B. Hutchens, E. Decolvenaera, S. Pathak, J.R. Greer
Nanoshearing: Collective carbon nanotube micromechanics
Materials Today 15 (3), 127 (2012)

A.T. Jennings, C. Gross, F. Greer, Z.H. Aitken, S.-W. Lee, and J.R. Greer
Higher Compressive Strengths and Bauschinger Effect in Conformally-Passivated Copper Nanopillars
Acta Materialia 60 (8), 3444-3455 (2012)

S.B. Hutchens, A. Needleman, and J.R. Greer
A microstructurally motivated description of the deformation of vertically aligned carbon nanotube structures
Appl. Phys. Lett. 100 (12), 121910 (2012)

R. Maaß, L. Meza, B. Gan, S. Tin, J.R. Greer
Ultra-high Strengths of Pristine Ni3Al Nano-Cubes
Small 8 (12), 1869-1875 (2012)

Pathak, S., Lim, E., Pour Shahid Saeed Abadi, P., Graham, S., Cola, B., and Greer, J.R.
Higher Recovery and Better Energy Dissipation at Faster Strain Rates in Carbon Nanotube Bundles: an In-Situ Study
ACS Nano 6 (3), 2189-2197 (2012)

Ju-Young Kim, Xun Gu, Matt Wraith, Jonathan T. Uhl, Karin A. Dahmen, Julia R. Greer
Suppression of Catastrophic Failure in Metallic Glass-Polyisoprene Nanolaminate-Containing Nano-Pillars
Advanced Functional Materialsi 22 (9), 1972-1980 (2012)

C. R. Weinberger, A. T. Jennings, K. Kang, J. R. Greer
Atomistic simulations and continuum modeling of dislocation nucleation and strength in gold nanowires
J. Mech. Phys. of Solids 60 (1), 84-103 (2012)

A. Jerusalem, A. Fernandez, A. Kunz, and J.R. Greer
Continuum modeling of dislocation starvation and subsequent nucleation in nano-pillar compressions
Scripta Materialia 66 (2), 93-96 (2012)

A. S. Budiman, G. Lee, M. J. Burek, D. Jang, S. M. J. Han, N. Tamura, M. Kunz, J. R. Greer, T. Y. Tsui
Plasticity of indium nanostructures as revealed by synchrotron X-ray microdiffraction
Mat. Sci. and Eng. A 538, 89-97 (2012)

2011

T. A. Schaedler, A. J. Jacobsen, A. Torrents, A. E. Sorensen, J. Lian, J. R. Greer, L. Valdevit, W. B. Carter
Ultralight Metallic Microlattices
Science 334 (6058), 962-965 (2011)

Q. Guo, J. R. Greer
Compressive properties of interface-containing Cu-Fe nano-pillars
Scripta Materialia 66 (5), 272-275 (2011)

A.T. Jennings and J.R. Greer
Heterogeneous Dislocation Nucleation from Surfaces and Interfaces As Governing Plasticity Mechanism in Nano Scale Metals
special issue of J. Mat. Res. (invited) 26 (22), 2803-2814 (2011)

J.-Y. Kim, D. Jang, and J.R. Greer
Strong and deformable nanolaminates utilizing size-induced homogeneous plasticity of metallic glasses
Adv. Funct. Mater. 21 (23), 4550-4554 (2011)

J. Lian, D. Jang, L. Valdevit, T. Schaedler, A. Jacobsen, W. Barvosa-Carter, J.R. Greer
Catastrophic vs. gradual collapse of thin-walled nanocrystalline Ni hollow cylinders as building blocks of micro-lattice structures
Nano Letters 11 (10), 4118-4125 (2011)

Q. Sun, Q. Guo, X. Yao, L. Xiao, and J.R. Greer
Size effects in strength and plasticity of single crystalline titanium micro-pillars with prismatic slip orientation
Scripta Materialia 65 (6), 473-476 (2011)

A.T. Jennings, J. Li, and J.R. Greer
Emergence of Strain Rate Sensitivity in Cu Nano-Pillars: Transition from Dislocation Multiplication to Dislocation Nucleation
Acta Materialia 59 (14) 5627-5637 (2011)

G. Lee, J.-Y. Kim, M. J. Burek, J. R. Greer, and T. Y. Tsui
Plastic deformation of indium nanostructures
Mat. Sci. and Eng. A 528 (19-20), 6112-6120 (2011)

S.B. Hutchens, A. Needleman, and J.R. Greer
Analysis of uniaxial compression of vertically aligned carbon nanotubes
Journal of the Mechanics and Physics of Solids 59 (10), 2227-2237 (2011)

A. Kunz, S. Pathak, and J.R. Greer
Compressive properties of bi-crystalline Al nano-pillars
Acta Materialia 59 (11), 4416-4424 (2011)

J.-Y. Kim, D. Jang, J. R. Greer
Crystallographic orientation and size dependence of tension-compression asymmetry in molybdenum nano-pillars
Int. J. Plasticity 28 (1), 46-52 (2011)

L. Valdevit, A. J. Jacobsen, J. R. Greer, W. B. Carter
Protocols for the Optimal Design of Multi-Functional Cellular Structures: From Hypersonics to Micro-Architected Materials.
J. Amer. Ceram. Soc. special issue in honor of Tony Evans, 94 (Supplement s1), s15-s34 (2011)

Jang, D., Cai, W., Greer, J.R.
Influence of Homogeneous Interfaces on the Strength of 500 nm Diameter Cu Nanopillars
Nano Lett. 11 (4), 1743-1746 (2011)

M. Huang, T.A. Pascal, H. Kim, W. A. Goddard, III, and J. R. Greer
Electronic-Mechanical Coupling in Graphene from in situ Nanoindentation Experiments and Multiscale Atomistic Simulations
Nano Lett. 11 (3), 1241-1246 (2011)

J.R. Greer and J. Th. M. De Hosson
Review: Plasticity in small-sized metallic systems: Intrinsic versus extrinsic size effect
Progress in Materials Science 56 (6), 654-724 (2011)

D. Jang and J. R. Greer
Size-induced weakening and grain boundary-assisted deformation in 60 nm grained Ni nanopillars
Scripta Materialia 64 (1), 77-80 (2011)

2010

D. Jang, C. T. Gross, and J. R. Greer
Effects of size on the strength and deformation mechanism in Zr-based metallic glasses
Int. J. Plasticity 27 (6), 858-867 (2011)

A. T. Jennings and J. R. Greer
Tensile deformation of electroplated copper nanopillars
Philosophical Magazine 91 (7), 1108-1120 (2010)

A. Kaul, K. G. Megerian, A. T Jennings, and J. R. Greer
In situ characterization of vertically oriented carbon nanofibers for three-dimensional nano-electro-mechanical device applications
Nanotechnology 21 (31), 315501 (2010)

J. J. Lopez, F. Greer, and J. R. Greer
Enhanced resistance of single-layer graphene to ion bombardment
J. Appl. Phys. 107 (10), 104326 (2010)

S. B. Hutchens, L. J. Hall, and J. R. Greer
In situ Mechanical Testing Reveals Periodic Buckle Nucleation and Propagation in Carbon Nanotube Bundles
Adv. Funct. Mater., 20 (14), 2338-2346 (2010)
WATCH video here!

A. T. Jennings, M. J. Burek, and J. R. Greer
Microstructure versus size: Mechanical properties of electroplated single crystalline Cu nanopillars
Physical Review Letters, 104 (13), 135503 (2010)

D. Jang, and J. R. Greer
Transition from a strong-yet-brittle to a stronger-and-ductile state by size reduction of metallic glasses
Nature Materials, 9, 215-219 (2010)
also featured in Nature Research Highlights; Nature 463, 712 (11 February 2010)
and in New Scientist, R&D Magazine, or read the Caltech press release!

G. Lee, J.-Y. Kim, A. S. Budiman, N. Tamura, M. Kunz, K. Chen, M. J. Burek, J. R. Greer, and T.Y. Tsui
Fabrication, Structure, and Mechanical Properties of Indium Nanopillars
Acta Materialia, 58 (4), 1361-1368 (2010)
also featured as the Advanced Light Source Highlight

J.-Y. Kim, D. Jang, and J. R. Greer
Tensile and compressive behavior of tungsten, molybdenum, tantalum, and niobium at the nanoscale
Acta Materialia 58 (7), 2355-2363 (2010)

2009

M. J. Burek and J. R. Greer
Fabrication and Microstructure Control of Nanoscale Mechanical Testing Specimens via Electron Beam Lithography and Electroplating
Nano Letters, 10 (1), 69-76 (2009)
***also featured as an Editorial Pick in Science! ISSN 0036-8075 (print), 1095-9203 (online)

J. R. Greer, J.-Y. Kim, and M. J. Burek
In-situ mechanical testing of nano-scale single crystalline nano-pillars
Journal of Materials 61 (12) 19-25 (2009)

J. R. Greer, D. Jang, J.-Y. Kim, and M. J. Burek
Emergence of the mechanical functionality in materials via size reduction
Adv. Func. Materials 19 (18), 2880-6 (2009)

Featured as "Rising Star."
Read interview with Prof. Greer at http://materialsviews.com/matview/main.view.

J.-Y. Kim and J. R. Greer
Tensile and compressive behavior of gold and molybdenum single crystals at nano-scale.
Acta Materialia 57 (17), 5245-5253 (2009)

S. Brinckmann, J.-Y. Kim, A. Jennings, and J. R. Greer
Effects of Sample Geometry on the Uniaxial Tensile Stress State at the Nanoscale
Int. J. Multiscale Comp. Eng., 7 (3) 187-94 (2009)

Kim, J-Y., Jang, D., Greer, J.R.
Insight into the deformation behavior of niobium single crystals under uniaxial compression and tension at the nanoscale
Scripta Materialia 61 (3), 300-303 (2009)

J. Lian, J.-Y. Kim, J. R. Greer, and J. Wang
Sample Boundary Effect in Nanoindentation of Nano and Microscale Surface Structures
J. Mech. Phys. Solids, 57 (5), 812-827 (2009)

2008

J.-Y. Kim, J.R. Greer
Size-Dependent Mechanical Properties of Molybdenum Nanopillars
Applied Phys. Lett. 93 (10), 101916 (2008)

Brinckmann, S., Kim, J-Y, Greer, J.R.
Fundamental Differences in Mechanical Behavior Between Two Types of Crystals at Nano-scale
Phys. Rev. Lett. 100 (15), 155502, (2008)
Also selected for the Virtual Journal of Nanoscale Science & Technology. Apr. 28, 2008

Misra, A., Greer, J.R., Daraio, C.,
Strain Rate Effects in the Mechanical Response of Polymer-Anchored Carbon Nanotube Foams
Advanced Materials, 21 (3), 334-338 (2008)

J.-Y. Kim, S.-K. Kang, J.R. Greer, D. Kwon
Evaluating Plastic Flow Properties by Characterizing Indentation Size Effects Using a Sharp Indenter
Acta Materialia 56 (14), 3338-3343 (2008)

Greer, J.R., Weinberger, C., and Cai, W.
Comparing Strengths of FCC and BCC Sub-micrometer Pillars: Compression Experiments and Dislocation Dynamics Simulations
Mat. Sci. and Eng. A 493 (1-2), 21-25 (2008)

2007

Greer, J.R., George, S., and Herbert, E.
Effective Use of Focused Ion Beam in Investigating Fundamental Mechanical Properties of Metals at the Sub-Micron Scale
Proc. Mat. Res. Soc., 893E, 1, 2007

Greer, J.R. and Street, R. A.
Mechanical Characterization of Solution-Derived Nanoparticle Silver Ink Thin Films
J. Appl. Phys., 101 (10), 103529 (2007)

Nix, W.D., Greer, J.R., Feng, G., Lilleodden, E. T.
Deformation at the Nanometer and Micrometer Length Scales: Effects of Strain Gradients and Dislocation Starvation
Thin Solid Films, 515 (6), 3152-3157 (2007)

Greer, J.R. and Street, R. A.
Thermal Cure Effects on Electrical Performance of Nanoparticle Silver Inks
Acta Materialia, 55 (18), 6345-6349 (2007)

2006

Greer, J.R. and Nix, W.D.
Nanoscale Gold Pillars Strengthened through Dislocation Starvation
Phys. Rev. B, 73 (24), 245410 (2006)

Greer, J.R.
Bridging the Gap between Computational and Experimental Length Scales: a Review on Nano-Scale Plasticity
Rev. Adv. Mat. Sci, 13 (1), 59-70 (2006)

Wang, J., Lian, J., Greer, J.R., Nix, W.D., Kim, K.-S.
Size effect in contact compression of nano- and microscale pyramid structures
Acta Materialia, 54 (15), 3973-3982 (2006)

2005

Greer, J.R., Oliver, W.C., and Nix, W.D.
Size Effects in Mechanical Properties of Gold at the Micron Scale in the Absence of Strain Gradients
Acta Materialia, 53 (6), 1821-1830 (2005)

Greer, J.R. and Nix, W.D.
Size Dependence of Mechanical Properties of Gold at the Sub-Micron Scale
Appl. Phys. A, 80 (8), 1625-1629 (2005)

Group News
Mar. 2014: Nisha passes her Ph.D. defense! Congratulations!
Mar. 2014: Congratulations to Ottman for winning the NSF Graduate Research Fellowship and Viki and Arturo for receiving honorable mentions!
Feb. 2014: Greer Group invades TMS 2014. David, Lauren, Lucas, Nico, Chen, Rachel, Seok-Woo, Viki, Wendy, Zach and Julia gives talks and present posters on their work at the TMS.
Feb. 2014: Julia presents her solution at Google Solve for X!
Jan. 2014: Julia and colleagues Paul Sternberg and Axel Scherer lead IdeasLab with Caltech at the World Economic Forum.
Dec. 2013: Lauren, Viki, Jan and David present talks at the MRS conference in Boston.
Nov. 2013: Julia attends the National Academies' Keck Future Initiatives symposium.
Oct. 2013: Zach presents a talk at the ARL-MEDE conference in Baltimore.
Oct. 2013: Wendy, Lucas and Julia attend and present talks at the ECI Conference on Nanomechanical Testing in Faro, Portugal.
Sept 2013: Dongchan, Lucas, and Lauren's work featured on Caltech's frontpage. Read the paper here!
July 2013: Congratulations to Lauren for passing her candidacy!
July 2013: Lucas wins Best Student Paper award at SES 2013! Read all about it here.
July 2013: Julia receives the SES Young Investigator Award at SES 2013 at Brown University!
July 2013: Julia performed Beethoven's 1st piano concerto with the Vienna International Orchestra at Altenberg Stift on July 21, 2013. See the performance here.
July 2013: Julia wins 2013 Nano Letter Young Investigator Lectureship Award! Read here. MCE announcement
April 201: Congratulations to Rachel for passing her qualifying exams!
May 2013 : Congratulations to Nisha on passing her candidacy exam!
May 2013 : Julia delivers a lecture (and apparently an impromptu piano recital) at the National Academy of Engineering's Frontiers of Engineering Symposium in Beijing.
May 2013 : Congratulations to Lucas on passing his candidacy! One step closer to Ph.D.
March 201: Congratulations to Rachel on winning the NSF Graduate Research Fellowship!