All-Electrical Determination of Crystal Orientation in Anisotropic Two-Dimensional Materials

Lintao Peng, Spencer A. Wells, Christopher R. Ryder, Mark C Hersam, Matthew Grayson

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The crystal orientation of an exfoliated black phosphorous flake is determined by purely electrical means. A sequence of three resistance measurements on an arbitrarily shaped flake with five contacts determines the three independent components of the anisotropic in-plane resistivity tensor, thereby revealing the crystal axes. The resistivity anisotropy ratio decreases linearly with increasing temperature T and carrier density reaching a maximum ratio of 3.0 at low temperatures and densities, while mobility indicates impurity scattering at low T and acoustic phonon scattering at high T.

Original languageEnglish
Article number086801
JournalPhysical Review Letters
Volume120
Issue number8
DOIs
Publication statusPublished - Feb 21 2018

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flakes
electrical resistivity
scattering
crystals
tensors
impurities
anisotropy
acoustics
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

All-Electrical Determination of Crystal Orientation in Anisotropic Two-Dimensional Materials. / Peng, Lintao; Wells, Spencer A.; Ryder, Christopher R.; Hersam, Mark C; Grayson, Matthew.

In: Physical Review Letters, Vol. 120, No. 8, 086801, 21.02.2018.

Research output: Contribution to journalArticle

Peng, Lintao ; Wells, Spencer A. ; Ryder, Christopher R. ; Hersam, Mark C ; Grayson, Matthew. / All-Electrical Determination of Crystal Orientation in Anisotropic Two-Dimensional Materials. In: Physical Review Letters. 2018 ; Vol. 120, No. 8.
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