106 citations · 440 across the 16 of their papers we have counts for
16 papers
Correlation between magnetic domain structures and quantum anomalous Hall effect in epitaxial MnBi2Te4 thin films
Yang Shi, Yunhe Bai, Yuanzhao Li +16
We use magnetic force microscopy (MFM) to study spatial uniformity of magnetization of epitaxially grown MnBi2Te4 thin films. Compared to films which exhibit no quantum anomalous H…
Acousto-drag photovoltaic effect by piezoelectric integration of two-dimensional semiconductors
Jiaming Gu, Yicheng Mou, Jianwen Ma +11
Light-to-electricity conversion is crucial for energy harvesting and photodetection, requesting efficient electron-hole pair separation to prevent recombination. Traditional juncti…
Electronically phase separated nano-network in antiferromagnetic insulating LaMnO3/PrMnO3/CaMnO3 tricolor superlattice
Qiang Li, Tian Miao, Huimin Zhang +15
Strongly correlated materials often exhibit an electronic phase separation (EPS) phenomena whose domain pattern is random in nature. The ability to control the spatial arrangement…
Visualizing quantum phenomena at complex oxide interfaces: an atomic view from scanning transmission electron microscopy
Hangwen Guo, Mohammad Saghayezhian, Zhen Wang +3
Complex oxide interfaces have been one of the central focuses in condensed matter physics and material science. Over the past decade, aberration corrected scanning transmission ele…
Role of disorder and correlations in metal-insulator transition in ultrathin SrVO3 films
Gaomin Wang, Zhen Wang, Meng Meng +7
Metallic oxide SrVO3 represents a prototype system for the study of the mechanism behind thickness-induced metal-to-insulator transition (MIT) or crossover in thin films due to its…
Surface and Interface Properties of La2/3Sr1/3MnO3 Thin Films on SrTiO3 (001)
Lina Chen, Zhen Wang, Gaomin Wang +6
Understanding and manipulating properties emerging at a surface or an interface require a thorough knowledge of structure-property relationships. We report a study of a prototype o…
Manipulating the Polar mismatch at LaNiO3/SrTiO3 (111) Interface
Mohammad Saghayezhian, Zhen Wang, Hangwen Guo +3
Heteroepitaxial growth of transition-metal oxide films on the open (111) surface of SrTiO3 results in significant restructuring due to the polar mismatch. Monitoring the structural…
Unusual Fe-H bonding associated with oxygen vacancies at the (001) surface of Fe3O4
Fangyang Liu, Chen Chen, Hangwen Guo +6
An unusual Fe-H bonding rather than conventional OH bonding is identified at Fe3O4 (001) surface. This abnormal behavior is associated with the oxygen vacancies which exist on the…
Polar compensation at the surface of SrTiO3 (111)
Mohammad Saghayezhian, Lina Chen, Gaomin Wang +3
We have systematically investigated the annealing effect on the structure and composition of the polar surface of SrTiO3 (111), starting with an ex-situ chemical etch. The relative…
Strain Doping: Reversible Single-Axis Control of a Complex Oxide Lattice via Helium Implantation
Hangwen Guo, Shuai Dong, Philip D. Rack +11
We report on the use of helium ion implantation to independently control the out-of-plane lattice constant in epitaxial La0.7Sr0.3MnO3 thin films without changing the in-plane latt…
Strain driven anisotropic magnetoresistance in antiferromagnetic LaSrMnO
A. T. Wong, C. Beekman, H. Guo +5
We investigate the effects of strain on antiferromagntic (AFM) single crystal thin films of LaSrMnO (x = 0.6). Nominally unstrained samples have strong magnetor…
Tuning the metal-insulator transition in manganite films through surface exchange coupling with magnetic nanodots
T. Z. Ward, Z. Gai, X. Y. Xu +3
In strongly correlated electronic systems, such as manganites, the global transport behavior depends sensitively on the spin ordering, whose alteration often requires a large exter…
Persistent metal-insulator transition at the surface of an oxygen-deficient, epitaxial manganite film
Paul C. Snijders, Min Gao, Hangwen Guo +6
The oxygen stoichiometry has a large influence on the physical and chemical properties of complex oxides. Most of the functionality in e.g. catalysis and electrochemistry depends i…
Electrophoretic-like gating used to control metal-insulator transitions in electronically phase separated manganite wires
Hangwen Guo, Joo H. Noh, Shuai Dong +6
Electronically phase separated manganite wires are found to exhibit controllable metal-insulator transitions under local electric fields. The switching characteristics are shown to…
Active control of magnetoresistance of organic spin valves using ferroelectricity
Dali Sun, Mei Fang, Xiaoshan Xu +11
Organic spintronic devices have been appealing because of the long spin life time of the charge carriers in the organic materials and their low cost, flexibility and chemical diver…
Growth diagram of La0.7Sr0.3MnO3 thin films using pulsed laser deposition
Hangwen Guo, Dali Sun, Wenbin Wang +9
An experimental study was conducted on controlling the growth mode of La0.7Sr0.3MnO3 thin films on SrTiO3 substrates using pulsed laser deposition (PLD) by tuning growth temperatur…