Interface dynamics and crystal phase switching in GaAs nanowires

Research output: Contribution to journalArticle

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Interface dynamics and crystal phase switching in GaAs nanowires. / Jacobsson, Daniel; Panciera, Federico; Tersoff, Jerry; Reuter, Mark C.; Lehmann, Sebastian; Hofmann, Stephan; Dick, Kimberly A.; Ross, Frances M.

In: Nature, Vol. 531, No. 7594, 16.03.2016, p. 317-322.

Research output: Contribution to journalArticle

Harvard

Jacobsson, D, Panciera, F, Tersoff, J, Reuter, MC, Lehmann, S, Hofmann, S, Dick, KA & Ross, FM 2016, 'Interface dynamics and crystal phase switching in GaAs nanowires', Nature, vol. 531, no. 7594, pp. 317-322. https://doi.org/10.1038/nature17148

APA

Jacobsson, D., Panciera, F., Tersoff, J., Reuter, M. C., Lehmann, S., Hofmann, S., ... Ross, F. M. (2016). Interface dynamics and crystal phase switching in GaAs nanowires. Nature, 531(7594), 317-322. https://doi.org/10.1038/nature17148

CBE

Jacobsson D, Panciera F, Tersoff J, Reuter MC, Lehmann S, Hofmann S, Dick KA, Ross FM. 2016. Interface dynamics and crystal phase switching in GaAs nanowires. Nature. 531(7594):317-322. https://doi.org/10.1038/nature17148

MLA

Vancouver

Jacobsson D, Panciera F, Tersoff J, Reuter MC, Lehmann S, Hofmann S et al. Interface dynamics and crystal phase switching in GaAs nanowires. Nature. 2016 Mar 16;531(7594):317-322. https://doi.org/10.1038/nature17148

Author

Jacobsson, Daniel ; Panciera, Federico ; Tersoff, Jerry ; Reuter, Mark C. ; Lehmann, Sebastian ; Hofmann, Stephan ; Dick, Kimberly A. ; Ross, Frances M. / Interface dynamics and crystal phase switching in GaAs nanowires. In: Nature. 2016 ; Vol. 531, No. 7594. pp. 317-322.

RIS

TY - JOUR

T1 - Interface dynamics and crystal phase switching in GaAs nanowires

AU - Jacobsson, Daniel

AU - Panciera, Federico

AU - Tersoff, Jerry

AU - Reuter, Mark C.

AU - Lehmann, Sebastian

AU - Hofmann, Stephan

AU - Dick, Kimberly A.

AU - Ross, Frances M.

PY - 2016/3/16

Y1 - 2016/3/16

N2 - Controlled formation of non-equilibrium crystal structures is one of the most important challenges in crystal growth. Catalytically grown nanowires are ideal systems for studying the fundamental physics of phase selection, and could lead to new electronic applications based on the engineering of crystal phases. Here we image gallium arsenide (GaAs) nanowires during growth as they switch between phases as a result of varying growth conditions. We find clear differences between the growth dynamics of the phases, including differences in interface morphology, step flow and catalyst geometry. We explain these differences, and the phase selection, using a model that relates the catalyst volume, the contact angle at the trijunction (the point at which solid, liquid and vapour meet) and the nucleation site of each new layer of GaAs. This model allows us to predict the conditions under which each phase should be observed, and use these predictions to design GaAs heterostructures. These results could apply to phase selection in other nanowire systems.

AB - Controlled formation of non-equilibrium crystal structures is one of the most important challenges in crystal growth. Catalytically grown nanowires are ideal systems for studying the fundamental physics of phase selection, and could lead to new electronic applications based on the engineering of crystal phases. Here we image gallium arsenide (GaAs) nanowires during growth as they switch between phases as a result of varying growth conditions. We find clear differences between the growth dynamics of the phases, including differences in interface morphology, step flow and catalyst geometry. We explain these differences, and the phase selection, using a model that relates the catalyst volume, the contact angle at the trijunction (the point at which solid, liquid and vapour meet) and the nucleation site of each new layer of GaAs. This model allows us to predict the conditions under which each phase should be observed, and use these predictions to design GaAs heterostructures. These results could apply to phase selection in other nanowire systems.

UR - http://www.scopus.com/inward/record.url?scp=84982267454&partnerID=8YFLogxK

U2 - 10.1038/nature17148

DO - 10.1038/nature17148

M3 - Article

VL - 531

SP - 317

EP - 322

JO - Nature

T2 - Nature

JF - Nature

SN - 0028-0836

IS - 7594

ER -