Non-Classical Longitudinal Magneto-Resistance in Anisotropic Black Phosphorus
| Autor: | Guillaume Gervais, Maurizio Peruzzini, Matei Petrescu, N. Hemsworth, Stefan Heun, Manuel Serrano-Ruiz, Oulin Yu, Matteo Carrega, Thomas Szkopek, David Graf, William Dickerson, Francesca Telesio, Maria Caporali, V. Tayari |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Condensed Matter - Materials Science
Materials science Magnetoresistance Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics Black phosphorus Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences 02 engineering and technology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 2D materials 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Condensed Matter::Materials Science Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences General Materials Science transverse magnetoresistance 010306 general physics 0210 nano-technology Anisotropy |
| Zdroj: | physica status solidi (RRL) – Rapid Research Letters Physica status solidi. Rapid research letters 14 (2020). doi:10.1002/pssr.201900347 info:cnr-pdr/source/autori:Telesio F.; Hemsworth N.; Dickerson W.; Petrescu M.; Tayari V.; Yu O.; Graf D.; Serrano-Ruiz M.; Caporali M.; Peruzzini M.; Carrega M.; Szkopek T.; Heun S.; Gervais G./titolo:Nonclassical Longitudinal Magnetoresistance in Anisotropic Black Phosphorus/doi:10.1002%2Fpssr.201900347/rivista:Physica status solidi. Rapid research letters (Print)/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:14 |
| Popis: | Resistivity measurements of a few-layer black phosphorus (bP) crystal in parallel magnetic fields up to 45 T are reported as a function of the angle between the in-plane field and the source-drain (S-D) axis of the device. The crystallographic directions of the bP crystal were determined by Raman spectroscopy, with the zigzag axis found within 5{\deg} of the S-D axis, and the armchair axis in the orthogonal planar direction. A transverse magneto-resistance (TMR) as well as a classically-forbidden longitudinal magneto-resistance (LMR) are observed. Both are found to be strongly anisotropic and non-monotonic with increasing in-plane field. Surprisingly, the relative magnitude (in %) of the positive LMR is larger than the TMR above $\sim$32 T. Considering the known anisotropy of bP whose zigzag and armchair effective masses differ by a factor of approximately seven, our experiment strongly suggests this LMR to be a consequence of the anisotropic Fermi surface of bP. Comment: 12 pages, 8 figures |
| Databáze: | OpenAIRE |
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