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Andrew D. Gamalski
Researcher at Center for Functional Nanomaterials
Publications - 17
Citations - 825
Andrew D. Gamalski is an academic researcher from Center for Functional Nanomaterials. The author has contributed to research in topics: Nanowire & Nucleation. The author has an hindex of 14, co-authored 17 publications receiving 696 citations. Previous affiliations of Andrew D. Gamalski include University of Cambridge & Arizona State University.
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Journal ArticleDOI
The Phase of Iron Catalyst Nanoparticles during Carbon Nanotube Growth
C. T. Wirth,Bernhard C. Bayer,Andrew D. Gamalski,Santiago Esconjauregui,Robert S. Weatherup,Caterina Ducati,Carsten Baehtz,John Robertson,Stephan Hofmann +8 more
TL;DR: In this article, the authors study the Fe-catalyzed chemical vapor deposition of carbon nanotubes by complementary in situ grazing-incidence X-ray diffraction, in situ Xray reflectivity, and environmental transmission electron microscopy.
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Nanoscale structural oscillations in perovskite oxides induced by oxygen evolution
Binghong Han,Kelsey A. Stoerzinger,Vasiliki Tileli,Andrew D. Gamalski,Eric A. Stach,Yang Shao-Horn +5 more
TL;DR: Observations of strong structural oscillations of Ba0.5Sr0.8Fe0.2O3-δ (BSCF) in the presence of both H2O vapour and electron irradiation using environmental transmission electron microscopy provide surprising insights into the interaction between water and oxides under electron-beam irradiation.
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Cyclic Supersaturation and Triple Phase Boundary Dynamics in Germanium Nanowire Growth
TL;DR: In this paper, the authors showed that growth kinetics are linked to an oscillatory behavior at the liquid−solid interface near the triple phase boundary (TPB), where the nanowire surface consists of an oblique facet.
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Formation of Metastable Liquid Catalyst during Subeutectic Growth of Germanium Nanowires
TL;DR: It is argued that there is a large energy barrier to nucleate diamond-cubic Ge, but not to nucleates the Au-Ge liquid, and the system follows the more kinetically accessible path, forming a liquid even at 240 degrees C, although there is no liquid along the most thermodynamically favorable path below 360 degrees C.
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Tuning the Activity of Oxygen in LiNi0.8Co0.15Al0.05O2 Battery Electrodes
Khim Karki,Khim Karki,Yiqing Huang,Sooyeon Hwang,Andrew D. Gamalski,M. Stanley Whittingham,Guangwen Zhou,Eric A. Stach +7 more
TL;DR: In situ environmental transmission electron microscopy techniques are used to demonstrate that surface oxygen loss and structural changes in the highly overcharged NCA particles are suppressed by exposing them to an oxygen-rich environment.