Search Results - "Jesson, D E"

Running Droplets of Gallium from Evaporation of Gallium Arsenide by Tersoff, J, Jesson, D.E, Tang, W.X

“…High-temperature annealing of gallium arsenide in vacuum causes excess evaporation of arsenic, with accumulation of gallium as liquid droplets on the surface…”
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Surface Phase Metastability during Langmuir Evaporation by Hannikainen, K., Gomez, D., Pereiro, J., Niu, Y. R., Jesson, D. E.

“…We have directly imaged the spontaneous formation of metastable surface phase domains on GaAs(001) during Langmuir evaporation. Eventually, these metastable…”
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Lateral motion of sige islands driven by surface-mediated alloying by DENKER, U, RASTELLI, A, STOFFE, M, TERSOFF, J, KATSAROS, G, COSTANTINI, G, KERN, K, JIN-PHILLIPP, N. Y, JESSON, D. E, SCHMIDT, O. G

“…SiGe islands move laterally on a Si(001) substrate during in situ postgrowth annealing. This surprising behavior is revealed by an analysis of the substrate…”
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Congruent evaporation temperature of molecular beam epitaxy grown GaAs (001) determined by local droplet etching by Heyn, Ch, Jesson, D. E.

“…The congruent evaporation temperature Tc of GaAs (001) is critical for many technological processes and is fundamental to the control and stability of Ga…”
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Caustic imaging of gallium droplets using mirror electron microscopy by Kennedy, S.M., Zheng, C.X., Tang, W.X., Paganin, D.M., Jesson, D.E.

“…We discuss a new interpretation of mirror electron microscopy (MEM) images, whereby electric field distortions caused by surface topography and/or potential…”
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Incoherent imaging of crystals using thermally scattered electrons by Jesson, D. E., Pennycook, S. J.

“…Thermal diffuse scattering of electrons through large angles by a simple low-index crystal projection is examined in the context of a phonon model, based on…”
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Direct imaging of surface cusp evolution during strained-layer epitaxy and implications for strain relaxation by JESSON, D. E, PENNYCOOK, S. J, BARIBEAU, J.-M, HOUGHTON, D. C

“…We have directly imaged the evolution of surface cusps during strained-layer epitaxy. The cusps arise naturally as a result of gradients in the surface…”
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Origin of quantum ring formation during droplet epitaxy by Zhou, Z Y, Zheng, C X, Tang, W X, Tersoff, J, Jesson, D E

“…Droplet epitaxy of GaAs is studied in real time using in situ surface electron microscopy. The resulting movies motivate a theoretical model for quantum ring…”
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Tunable metastability of surface nanostructure arrays by JESSON, D. E, MUNT, T. P, SHCHUKIN, V. A, BIMBERG, D

“…A Fokker-Planck equation is used to model the coarsening of surface nanostructure arrays. Metastable states are identified which are associated with a narrow…”
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Selected energy dark-field imaging using low energy electrons for optimal surface phase discrimination by Niu, Y.R., Pereiro, J., Gomez, D., Jesson, D.E.

“…•This paper provides a general strategy for surface phase discrimination by dark-field imaging in low energy electron microscopy.•Image contrast is maximised…”
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Decomposition controlled by surface morphology during langmuir evaporation of GaAs by Tersoff, J, Jesson, D E, Tang, W X

“…When GaAs is heated in vacuum, it decomposes into Ga and As as it evaporates. Real-time in situ surface electron microscopy reveals striking bursts of…”
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Self-Limiting Growth of Strained Faceted Islands by Jesson, D. E., Chen, G., Chen, K. M., Pennycook, S. J.

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Elastic interaction and self-relaxation energies of coherently strained conical islands by SHCHUKIN, A, BIMBERG, D, MUNT, T. P, JESSON, D. E

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Phase retrieval low energy electron microscopy by Yu, R.P., Kennedy, S.M., Paganin, D.M., Jesson, D.E.

“…We consider the utility of phase-retrieval methods in low energy electron microscopy (LEEM). Computer simulations are presented, demonstrating recovery of the…”
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Critical misfit for dislocation stability in self-assembled islands by Denker, U., Jesson, D. E.

“…The energy of a dislocation within a coherently strained nanostructure is calculated as a function of misfit and position. If the misfit is decreased below a…”
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Droplet Epitaxy Image Contrast in Mirror Electron Microscopy by Kennedy, S. M., Zheng, C. X., Jesson, D. E.

“…Image simulation methods are applied to interpret mirror electron microscopy (MEM) images obtained from a movie of GaAs droplet epitaxy. Cylindrical symmetry…”
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Metastability of ultradense arrays of quantum dots by Shchukin, V A, Bimberg, D, Munt, T P, Jesson, D E

“…We present a linear stability analysis of ultradense arrays of coherently strained islands against Ostwald ripening. Surprisingly, short-range elastic…”
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Incoherent imaging of thin specimens using coherently scattered electrons by Jesson, D. E., Pennycook, S. J.

“…We consider the imaging of phase objects using a scanning transmission electron microscope equipped with a large inner-angle annular detector. We show,…”
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High-resolution incoherent imaging of crystals by PENNYCOOK, S. J, JESSON, D. E

“…A Bloch-wave analysis shows how a signal dependent on the electron intensity at the atom sites can be used to form an incoherent image of a crystal structure…”
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Morphological Evolution of Strained Films by Cooperative Nucleation by Jesson, DE, Chen, KM, Pennycook, SJ, Thundat, T, Warmack, RJ

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