Zobrazeno 1 - 10
of 4 923
pro vyhledávání: '"Weng, H"'
In two dimensions, intrinsic second-order topological insulators (SOTIs) are characterized by topological corner states that emerge at the intersections of distinct edges with reversed mass signs, enforced by spatial symmetries. Here, we present a co
Externí odkaz:
http://arxiv.org/abs/2406.05701
Publikováno v:
Physical Review B 106, 115121 (2022)
The optical conductivity of the new Dirac semimetal candidate Ir$_2$In$_8$Se is measured in a frequency range from 40 to 30000 cm$^{-1}$ at temperatures from 300 K down to 10 K. The measurement reveals that the compound is a low carrier density metal
Externí odkaz:
http://arxiv.org/abs/2209.00785
Autor:
Chen, L., Zhou, L. Q., Zhou, Y., Liu, C., Guo, Z. N., Gao, S. Y., Fan, W. H., Xu, J. F., Guo, Y. X., Liao, Wang, J. O., Weng, H. M., Wang, G.
Publikováno v:
SCIENCE CHINA Physics, Mechanics & Astronomy, 66, 1, 2023, 217011
Looking for new materials with Dirac points has been a fascinating subject of research. Here we report the growth, crystal structure, and band structure of HfGe0.92Te single crystals, featuring three different types of Dirac points. HfGe0.92Te crysta
Externí odkaz:
http://arxiv.org/abs/2201.05833
Publikováno v:
In Clinical Radiology July 2024 79(7):e900-e907
Publikováno v:
Science China - Physics, Mechanics & Astronomy, 65 , 257012 (2022)
We have investigated the quasiparticle dynamics and collective excitations in the quasi-one-dimensional material ZrTe$_5$ using ultrafast optical pump-probe spectroscopy. Our time-domain results reveal two coherent oscillations having extremely low e
Externí odkaz:
http://arxiv.org/abs/2107.12748
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:
Zhang, T. T., Miao, H., Wang, Q., Lin, J. Q., Cao, Y., Fabbris, G., Said, A. H., Liu, X., Lei, H. C., Fang, Z., Weng, H. M., Dean, M. P. M.
Publikováno v:
Phys. Rev. Lett. 123, 245302 (2019)
While condensed matter systems host both Fermionic and Bosonic quasi-particles, reliably predicting and empirically verifying topological states is only mature for Fermionic electronic structures, leaving topological Bosonic excitations sporadically
Externí odkaz:
http://arxiv.org/abs/1910.13637
Autor:
Guan, J. -Y., Kong, L. -Y., Zhou, L. -Q., Zhong, Y. -G., Li, H., Liu, H. -J., Tang, C. -Y., Yan, D. -Y., Yang, F. -Z., Huang, Y. -B., Shi, Y. -G., Qian, T., Weng, H. -M., Sun, Y. -J., Ding, H.
Publikováno v:
Science Bulletin 64(2019)1215-1221
Connate topological superconductor (TSC) combines topological surface states with nodeless superconductivity in a single material, achieving effective $p$-wave pairing without interface complication. By combining angle-resolved photoemission spectros
Externí odkaz:
http://arxiv.org/abs/1904.11638
Autor:
Princep, A. J., Feng, H. L., Guo, Y. F., Lang, F., Weng, H. M., Manuel, P., Khalyavin, D., Shenshyn, A., Rahn, M., Yuan, Y. H., Matsushita, Y., Blundell, S. J., Yamaura, K., Boothroyd, A. T.
Publikováno v:
Phys. Rev. B 102, 104410 (2020)
We report magnetic, transport, neutron diffraction, and muon spin rotation data showing that Pb$_2$CoOsO$_6$, a newly synthesized metallic double-perovskite with a centrosymmetric space group at room temperature, exhibits a continuous second-order ph
Externí odkaz:
http://arxiv.org/abs/1902.04482
Autor:
Rao, Z. -C., Li, H., Zhang, T. -T., Tian, S. -J., Li, C. -H., Fu, B. -B., Tang, C. -Y., Wang, L., Li, Z. -L., Fan, W. -H., Li, J. -J., Huang, Y. -B., Liu, Z. -H., Long, Y. -W., Fang, C., Weng, H. -M., Shi, Y. -G., Lei, H. -C., Sun, Y. -J., Qian, T., Ding, H.
Publikováno v:
Nature 567, 496-499 (2019)
In condensed matter systems, chiral topological nodes are robust band crossing points in momentum space that carry nonzero Chern numbers. The chirality is manifested by the presence of surface Fermi arcs connecting the projections of nodes with oppos
Externí odkaz:
http://arxiv.org/abs/1901.03358