Appearance of a Td* phase across the Td−1T′ phase boundary in the Weyl semimetal MoTe2
| العنوان: | Appearance of a Td* phase across the Td−1T′ phase boundary in the Weyl semimetal MoTe2 |
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| المؤلفون: | Yu Tao, Adam A. Aczel, Chunruo Duan, John A. Schneeloch, Sachith Dissanayake, Jaime A. Fernandez-Baca, Feng Ye, Despina Louca, Masaaki Matsuda |
| المصدر: | Physical Review B. 100 |
| بيانات النشر: | American Physical Society (APS), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Physics, Phase boundary, Weyl semimetal, 02 engineering and technology, Neutron scattering, 021001 nanoscience & nanotechnology, 01 natural sciences, Crystallography, Diffuse scattering, Phase (matter), 0103 physical sciences, Orthorhombic crystal system, 010306 general physics, 0210 nano-technology, Unit (ring theory), Monoclinic crystal system |
| الوصف: | Using elastic neutron scattering on single crystals of ${\mathrm{MoTe}}_{2}$ and ${\mathrm{Mo}}_{1\ensuremath{-}x}{\mathrm{W}}_{x}{\mathrm{Te}}_{2}$ ($x\ensuremath{\lesssim}0.01$), the temperature dependence of the recently discovered ${T}_{d}^{*}$ phase, present between the low-temperature orthorhombic ${T}_{d}$ phase and high-temperature monoclinic $1{T}^{\ensuremath{'}}$ phase, is explored. The ${T}_{d}^{*}$ phase appears only on warming from ${T}_{d}$ and is observed in the hysteresis region prior to the $1{T}^{\ensuremath{'}}$ transition. This phase consists of four layers in its unit cell, and is constructed by an ``AABB'' sequence of layer stacking operations rather than the ``AB'' and ``AA'' sequences of the $1{T}^{\ensuremath{'}}$ and ${T}_{d}$ phases, respectively. Though the ${T}_{d}^{*}$ phase emerges without disorder on warming from ${T}_{d}$, on cooling from $1{T}^{\ensuremath{'}}$ diffuse scattering is observed that suggests a frustrated tendency toward the ``AABB'' stacking. |
| تدمد: | 2469-9969 2469-9950 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::68ec4c77f6ffa5b3dc34c193ad678bf1 https://doi.org/10.1103/physrevb.100.100101 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........68ec4c77f6ffa5b3dc34c193ad678bf1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24699969 24699950 |
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