Zobrazeno 1 - 10
of 1 239
pro vyhledávání: '"Nie, S. M."'
Autor:
Liu, W. L., Zhang, X., Nie, S. M., Liu, Z. T., Sun, X. Y., Wang, H. Y., Ding, J. Y., Sun, L., Huang, Z., Su, H., Yang, Y. C., Jiang, Z. C., Lu, X. L., Liu, J. S., Liu, Z. H., Zhang, S. L., Weng, H. M., Guo, Y. F., Wang, Z. J., Shen, D. W., Liu, Z.
The interplay between various symmetries and electronic bands topology is one of the core issues for topological quantum materials. Spontaneous magnetism, which leads to the breaking of time-reversal symmetry, has been proven to be a powerful approac
Externí odkaz:
http://arxiv.org/abs/2103.04658
Autor:
Xu, Y., Das, L., Ma, J. Z., Yi, C. J., Nie, S. M., Shi, Y. G., Tiwari, A., Tsirkin, S. S., Neupert, T., Medarde, M., Shi, M., Chang, J., Shang, T.
Publikováno v:
Phys. Rev. Lett. 126, 076602 (2021)
As exemplified by the growing interest in the quantum anomalous Hall effect, the research on topology as an organizing principle of quantum matter is greatly enriched from the interplay with magnetism. In this vein, we present a combined electrical a
Externí odkaz:
http://arxiv.org/abs/2008.05390
Autor:
Ma, J. -Z., Nie, S. M., Yi, C. J., Jandke, J., Shang, T., Yao, M. Y., Naamneh, M., Yan, L. Q., Sun, Y., Chikina, A., Strocov, V. N., Medarde, M., Song, M., Xiong, Y. -M., Xu, G., Wulfhekel, W., Mesot, J., Reticcioli, M., Franchini, C., Mudry, C., Müller, M., Shi, Y. G., Qian, T., Ding, H., Shi, M.
Publikováno v:
Sciences Advances. 5, eaaw4718 (2019)
Weyl fermions as emergent quasiparticles can arise in Weyl semimetals (WSMs) in which the energy bands are nondegenerate, resulting from inversion or time-reversal symmetry breaking. Nevertheless, experimental evidence for magnetically induced WSMs i
Externí odkaz:
http://arxiv.org/abs/1907.05956
Autor:
Zhang, W. -L., Richard, P., van Roekeghem, A., Nie, S. -M., Xu, N., Zhang, P., Miao, H., Wu, S. -F., Yin, J. -X., Fu, B. B., Kong, L. -Y., Qian, T., Wang, Z. -J., Fang, Z., Sefat, A. S., Biermann, S., Ding, H.
Publikováno v:
Phys. Rev. B 94, 155155 (2016)
We performed an angle-resolved photoemission spectroscopy study of BaMn$_2$As$_2$ and BaMn$_2$Sb$_2$, which are isostructural to the parent compound BaFe$_2$As$_2$ of the 122 family of ferropnictide superconductors. We show the existence of a strongl
Externí odkaz:
http://arxiv.org/abs/1608.06110
Autor:
Ma, J. -Z., Yi, C. -J., Lv, B. Q., Wang, Z. J., Nie, S. -M., Wang, L., Kong, L. -Y., Huang, Y. -B., Richard, P., Weng, H. -M., Bernevig, B. A., Shi, Y. -G., Qian, T., Ding, H.
Publikováno v:
Science Advances 3, e1602415 (2017)
Topological insulators (TIs) host novel states of quantum matter, distinguished from trivial insulators by the presence of nontrivial conducting boundary states connecting the valence and conduction bulk bands. Up to date, all the TIs discovered expe
Externí odkaz:
http://arxiv.org/abs/1605.06824
Autor:
Liu, Y., Long, Y. J., Zhao, L. X., Nie, S. M., Zhang, S. J., Weng, Y. X., Jin, M. L., Li, W. M., Liu, Q. Q., Long, Y. W., Yu, R. C., Fen, X. L., Li, Q., Weng, H. M., Dai, X., Fang, Z., Chen, G. F., Jin, C. Q.
Recently, ZrTe5 and HfTe5 are theoretically studied to be the most promising layered topological insulators since they are both interlayer weakly bonded materials and also with a large bulk gap in the single layer. It paves a new way for the study of
Externí odkaz:
http://arxiv.org/abs/1603.00514
Autor:
Wu, R., Ma, J. -Z., Zhao, L. -X., Nie, S. -M., Huang, X., Yin, J. -X., Fu, B. -B., Richard, P., Chen, G. -F., Fang, Z., Dai, X., Weng, H. -M., Qian, T., Ding, H., Pan, S. H.
Publikováno v:
Phys. Rev. X 6, 021017 (2016)
Two-dimensional (2D) topological insulators (TIs) with a large bulk band-gap are promising for experimental studies of the quantum spin Hall effect and for spintronic device applications. Despite considerable theoretical efforts in predicting large-g
Externí odkaz:
http://arxiv.org/abs/1601.07056
Autor:
Lv, B. Q., Muff, S., Qian, T., Song, Z. D., Nie, S. M., Xu, N., Richard, P., Matt, C. E., Plumb, N. C., Zhao, L. X., Chen, G. F., Fang, Z., Dai, X., Dil, J. H., Mesot, J., Shi, M., Weng, H. M., Ding, H.
Publikováno v:
Phys. Rev. Lett. 115, 217601 (2015)
We have investigated the spin texture of surface Fermi arcs in the recently discovered Weyl semimetal TaAs using spin- and angle-resolved photoemission spectroscopy. The experimental results demonstrate that the Fermi arcs are spin-polarized. The mea
Externí odkaz:
http://arxiv.org/abs/1510.07256
We find that quantum spin Hall (QSH) state can be obtained on a square-like or rectangular lattice, which is generalized from two-dimensional (2D) transition metal dichalcogenide (TMD) haeckelites. Band inversion is shown to be controled by hopping p
Externí odkaz:
http://arxiv.org/abs/1508.05220
Autor:
Wu, S. F., Richard, P., van Roekeghem, A., Nie, S. M., Miao, H., Xu, N., Qian, T., Saparov, B., Fang, Z., Biermann, S., Sefat, Athena S., Ding, H.
Publikováno v:
Phys. Rev. B 91, 235109 (2015)
We use angle-resolved photoemission spectroscopy to extract the band dispersion and the Fermi surface of BaCu$_2$As$_2$ and $\alpha$-BaCu$_2$Sb$_2$. While the Cu $3d$ bands in both materials are located around 3.5 eV below the Fermi level, the low-en
Externí odkaz:
http://arxiv.org/abs/1504.00437