C
Chang Liu
Researcher at Washington University in St. Louis
Publications - 130
Citations - 3042
Chang Liu is an academic researcher from Washington University in St. Louis. The author has contributed to research in topics: Topological insulator & Dirac (software). The author has an hindex of 24, co-authored 119 publications receiving 2448 citations. Previous affiliations of Chang Liu include Vollum Institute & Princeton Plasma Physics Laboratory.
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Journal ArticleDOI
Topological nodal-line fermions in spin-orbit metal PbTaSe2.
Guang Bian,Tay-Rong Chang,Tay-Rong Chang,Raman Sankar,Su-Yang Xu,Hao Zheng,Titus Neupert,Ching-Kai Chiu,Shin-Ming Huang,Guoqing Chang,Ilya Belopolski,Daniel S. Sanchez,Madhab Neupane,Nasser Alidoust,Chang Liu,Bao Kai Wang,Bao Kai Wang,Chi-Cheng Lee,Horng-Tay Jeng,Horng-Tay Jeng,Chenglong Zhang,Zhujun Yuan,Shuang Jia,Arun Bansil,Fangcheng Chou,Hsin Lin,M. Zahid Hasan +26 more
TL;DR: The detailed angle-resolved photoemission measurements, first-principles simulations and theoretical topological analysis illustrate the physical mechanism underlying the formation of the topological nodal-line states and associated surface states for the first time, thus paving the way towards exploring the exotic properties of the bottom-line fermions in condensed matter systems.
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Topological-Metal to Band-Insulator Transition in (Bi 1-x In x ) 2 Se 3 Thin Films
Matthew Brahlek,Namrata Bansal,Nikesh Koirala,Su-Yang Xu,Madhab Neupane,Chang Liu,M. Zahid Hasan,Seongshik Oh +7 more
TL;DR: By combining transport and photoemission measurements on (Bi(1-x)In(x))(2)Se(3) thin films, it is reported that this system transforms from a topologically nontrivial metal into aTopologically trivial band insulator through three quantum phase transitions.
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Gapless surface Dirac cone in antiferromagnetic topological insulator MnBi$_2$Te$_4$
Yu-Jie Hao,Pengfei Liu,Yue Feng,Xiaoming Ma,Eike F. Schwier,Masashi Arita,Shiv Kumar,Chaowei Hu,Ruie Lu,Meng Zeng,Yuan Wang,Zhanyang Hao,Hongyi Sun,Ke Zhang,Jia-Wei Mei,Ni Ni,Liusuo Wu,Kenya Shimada,Chaoyu Chen,Qihang Liu,Chang Liu +20 more
TL;DR: In this paper, a gapless Dirac cone at the (0001) surface of MnBi$_2$Te$_4$ exists between the bulk band gap and the surface state remains unchanged across the bulk Neel temperature, and is even robust against severe surface degradation.
Journal Article
Topological-Metal to Band-Insulator Transition in (Bi$_{1-x}$In$_x)_2$Se$_3$ Thin Films
Matthew Brahlek,Namrata Bansal,Nikesh Koirala,Su-Yang Xu,Madhab Neupane,Chang Liu,M. Zahid Hasan,Seongshik Oh +7 more
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ATHLATES: accurate typing of human leukocyte antigen through exome sequencing.
Chang Liu,Xiao Yang,Brian Duffy,Thalachallour Mohanakumar,Robi D. Mitra,Michael C. Zody,John D. Pfeifer +6 more
TL;DR: ATHLATES, a program that applies assembly, allele identification and allelic pair inference to short read sequences, and applied it to data from Illumina platforms, correctly reported 74 out of 75 allelic pairs with an overall concordance rate of 99% compared with conventional typing.