F
Fengshan Zheng
Researcher at Ernst Ruska Centre
Publications - 46
Citations - 2433
Fengshan Zheng is an academic researcher from Ernst Ruska Centre. The author has contributed to research in topics: Electron holography & Thermoelectric effect. The author has an hindex of 14, co-authored 36 publications receiving 1797 citations. Previous affiliations of Fengshan Zheng include Forschungszentrum Jülich & Southern University of Science and Technology.
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Journal ArticleDOI
Broad temperature plateau for thermoelectric figure of merit ZT>2 in phase-separated PbTe0.7S0.3
Haijun Wu,Li-Dong Zhao,Fengshan Zheng,Di Wu,Y. L. Pei,X. Tong,Mercouri G. Kanatzidis,Jiaqing He +7 more
TL;DR: High average ZT is obtained by synergistically optimized electrical- and thermal-transport properties via carrier concentration tuning, band structure engineering and hierarchical architecturing, and highlights a realistic prospect of wide applications of thermoelectrics.
Journal ArticleDOI
Origin of the high performance in GeTe-based thermoelectric materials upon Bi2Te3 doping.
Di Wu,Li-Dong Zhao,Shiqiang Hao,Qike Jiang,Fengshan Zheng,Jeff W. Doak,Haijun Wu,Hang Chi,Yaniv Gelbstein,Ctirad Uher,Chris Wolverton,Mercouri G. Kanatzidis,Jiaqing He +12 more
TL;DR: It is shown that a remarkably high ZT of ∼1.9 can be achieved at 773 K in Ge0.87Pb0.13Te upon the introduction of 3 mol % Bi2Te3.
Journal ArticleDOI
High thermoelectric performance realized in a BiCuSeO system by improving carrier mobility through 3D modulation doping.
TL;DR: A greatly enhanced thermoelectric performance in a BiCuSeO system is reported, realized by improving carrier mobility through modulation doping, which leads to a broad, high power factor.
Journal ArticleDOI
Experimental observation of chiral magnetic bobbers in B20-type FeGe.
Fengshan Zheng,Filipp N. Rybakov,Filipp N. Rybakov,Filipp N. Rybakov,A. B. Borisov,A. B. Borisov,Dongsheng Song,Shasha Wang,Shasha Wang,Zi-An Li,Haifeng Du,Haifeng Du,Nikolai S. Kiselev,Jan Caron,András Kovács,Mingliang Tian,Mingliang Tian,Yuheng Zhang,Yuheng Zhang,Stefan Blügel,Rafal E. Dunin-Borkowski +20 more
TL;DR: It is shown that ChBs are able to coexist with skyrmions over a wide range of parameters, which suggests their possible practical applications in novel magnetic solid-state memory devices, in which a stream of binary data bits can be encoded by a sequence of skyrMions and bobbers.
Journal ArticleDOI
Direct Imaging of a Zero-Field Target Skyrmion and Its Polarity Switch in a Chiral Magnetic Nanodisk.
Fengshan Zheng,Hang Li,Shasha Wang,Shasha Wang,Dongsheng Song,Chiming Jin,Chiming Jin,Wenshen Wei,Wenshen Wei,András Kovács,Jiadong Zang,Mingliang Tian,Mingliang Tian,Yuheng Zhang,Yuheng Zhang,Haifeng Du,Haifeng Du,Rafal E. Dunin-Borkowski +17 more
TL;DR: Off-axis electron holography is used to record images of target Skyrmions in a 160-nm-diameter nanodisk of the chiral magnet FeGe and demonstrates switching between two stable degenerate target Sk Kyrmion ground states that have opposite polarities and rotation senses.