Wu, Z., Xu, S., Lu, H., Khamoshi, A., Liu, G. B., Han, T., Wu, Y., Lin, J., Long, G., He, Y., Cai, Y., Yao, Y., Zhang, F., & Wang, N. (2016). Even-odd layer-dependent magnetotransport of high-mobility Q-valley electrons in transition metal disulfides. Nature Communications, 7, Article 12955. https://doi.org/10.1038/ncomms12955
Wu, Zefei ; Xu, Shuigang ; Lu, Huanhuan et al. / Even-odd layer-dependent magnetotransport of high-mobility Q-valley electrons in transition metal disulfides. In: Nature Communications. 2016 ; Vol. 7.
@article{0426e468dd6a433ba662e7f745608882,
title = "Even-odd layer-dependent magnetotransport of high-mobility Q-valley electrons in transition metal disulfides",
abstract = "In few-layer transition metal dichalcogenides (TMDCs), the conduction bands along the ωK directions shift downward energetically in the presence of interlayer interactions, forming six Q valleys related by threefold rotational symmetry and time reversal symmetry. In even layers, the extra inversion symmetry requires all states to be Kramers degenerate; whereas in odd layers, the intrinsic inversion asymmetry dictates the Q valleys to be spin-valley coupled. Here we report the transport characterization of prominent Shubnikov-de Hass (SdH) oscillations and the observation of the onset of quantum Hall plateaus for the Q-valley electrons in few-layer TMDCs. Universally in the SdH oscillations, we observe a valley Zeeman effect in all odd-layer TMDC devices and a spin Zeeman effect in all even-layer TMDC devices, which provide a crucial information for understanding the unique properties of multi-valley band structures of few-layer TMDCs.",
author = "Zefei Wu and Shuigang Xu and Huanhuan Lu and Armin Khamoshi and Liu, {Gui Bin} and Tianyi Han and Yingying Wu and Jiangxiazi Lin and Gen Long and Yuheng He and Yuan Cai and Yugui Yao and Fan Zhang and Ning Wang",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2016.",
year = "2016",
month = sep,
day = "21",
doi = "10.1038/ncomms12955",
language = "English",
volume = "7",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
}
Wu, Z, Xu, S, Lu, H, Khamoshi, A, Liu, GB, Han, T, Wu, Y, Lin, J, Long, G, He, Y, Cai, Y, Yao, Y, Zhang, F & Wang, N 2016, 'Even-odd layer-dependent magnetotransport of high-mobility Q-valley electrons in transition metal disulfides', Nature Communications, vol. 7, 12955. https://doi.org/10.1038/ncomms12955
Even-odd layer-dependent magnetotransport of high-mobility Q-valley electrons in transition metal disulfides. / Wu, Zefei; Xu, Shuigang; Lu, Huanhuan et al.
In:
Nature Communications, Vol. 7, 12955, 21.09.2016.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Even-odd layer-dependent magnetotransport of high-mobility Q-valley electrons in transition metal disulfides
AU - Wu, Zefei
AU - Xu, Shuigang
AU - Lu, Huanhuan
AU - Khamoshi, Armin
AU - Liu, Gui Bin
AU - Han, Tianyi
AU - Wu, Yingying
AU - Lin, Jiangxiazi
AU - Long, Gen
AU - He, Yuheng
AU - Cai, Yuan
AU - Yao, Yugui
AU - Zhang, Fan
AU - Wang, Ning
N1 - Publisher Copyright:
© The Author(s) 2016.
PY - 2016/9/21
Y1 - 2016/9/21
N2 - In few-layer transition metal dichalcogenides (TMDCs), the conduction bands along the ωK directions shift downward energetically in the presence of interlayer interactions, forming six Q valleys related by threefold rotational symmetry and time reversal symmetry. In even layers, the extra inversion symmetry requires all states to be Kramers degenerate; whereas in odd layers, the intrinsic inversion asymmetry dictates the Q valleys to be spin-valley coupled. Here we report the transport characterization of prominent Shubnikov-de Hass (SdH) oscillations and the observation of the onset of quantum Hall plateaus for the Q-valley electrons in few-layer TMDCs. Universally in the SdH oscillations, we observe a valley Zeeman effect in all odd-layer TMDC devices and a spin Zeeman effect in all even-layer TMDC devices, which provide a crucial information for understanding the unique properties of multi-valley band structures of few-layer TMDCs.
AB - In few-layer transition metal dichalcogenides (TMDCs), the conduction bands along the ωK directions shift downward energetically in the presence of interlayer interactions, forming six Q valleys related by threefold rotational symmetry and time reversal symmetry. In even layers, the extra inversion symmetry requires all states to be Kramers degenerate; whereas in odd layers, the intrinsic inversion asymmetry dictates the Q valleys to be spin-valley coupled. Here we report the transport characterization of prominent Shubnikov-de Hass (SdH) oscillations and the observation of the onset of quantum Hall plateaus for the Q-valley electrons in few-layer TMDCs. Universally in the SdH oscillations, we observe a valley Zeeman effect in all odd-layer TMDC devices and a spin Zeeman effect in all even-layer TMDC devices, which provide a crucial information for understanding the unique properties of multi-valley band structures of few-layer TMDCs.
UR - http://www.scopus.com/inward/record.url?scp=84988811361&partnerID=8YFLogxK
U2 - 10.1038/ncomms12955
DO - 10.1038/ncomms12955
M3 - Article
AN - SCOPUS:84988811361
SN - 2041-1723
VL - 7
JO - Nature Communications
JF - Nature Communications
M1 - 12955
ER -
Wu Z, Xu S, Lu H, Khamoshi A, Liu GB, Han T et al. Even-odd layer-dependent magnetotransport of high-mobility Q-valley electrons in transition metal disulfides. Nature Communications. 2016 Sept 21;7:12955. doi: 10.1038/ncomms12955
