تقرير
Quantum oscillation study of the large magnetoresistance in Mo substituted WTe$_2$ single crystals
| العنوان: | Quantum oscillation study of the large magnetoresistance in Mo substituted WTe$_2$ single crystals |
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| المؤلفون: | Barua, Sourabh, Lees, M. R., Balakrishnan, G., Goddard, P. A. |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
| الوصف: | The list of interesting electrical properties exhibited by transition metal dichalcogenides has grown with the discovery of extremely large magnetoresistance (MR) and type-II Weyl semimetal behaviour in WTe$_2$ and MoTe$_2$. The extremely large MR in WTe$_2$ is still not adequately understood. Here, we systematically study the effect of Mo substitution on the quantum oscillations in the MR in WTe$_2$. The MR decreases with Mo substitution, however, the carrier concentrations extracted from the quantum oscillations show that the charge compensation improves. We believe that earlier interpretations based on the two-band theory, which attribute the decrease in MR to charge imbalance, could be incorrect due to over-parametrization. We attribute the decrease in MR in the presence of charge compensation to a fall in transport mobility, which is evident from the residual resistivity ratio data. The quantum scattering time and the effective masses do not change within experimental errors upon substitution. Comment: This revised version shows the main and supplementary material in the correct order |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.00498 |
| رقم الأكسشن: | edsarx.2407.00498 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |