Hangwen Guo
Fudan University
45 Papers
76 Citations
Hangwen Guo is an academic researcher from Fudan University. The author has contributed to research in topics: Magnetoresistance & Ferromagnetism. The author has an hindex of 12, co-authored 36 publications. Previous affiliations of Hangwen Guo include Louisiana State University & Oak Ridge National Laboratory.
Chat about Author
Papers
Giant magnetoresistance in organic spin valves.
Dali Sun,Dali Sun,Lifeng Yin,Lifeng Yin,Cheng-Jun Sun,Hangwen Guo,Zheng Gai,Xiaoguang Zhang,Thomas Z. Ward,Zhao-Hua Cheng,J. Shen,J. Shen +11 more
TL;DR: Analysis of the current-voltage characteristics indicates that the spin-dependent carrier injection correlates with the observed MR, and depositing nanodots instead of atoms onto the organic layer using buffer layer assist growth produces a sharper interface and a giant MR.
282
Strain doping: Reversible single-axis control of a complex oxide lattice via helium implantation
Hangwen Guo,Hangwen Guo,Hangwen Guo,Shuai Dong,Shuai Dong,Shuai Dong,Philip D. Rack,Philip D. Rack,John D. Budai,Christianne Beekman,Zheng Gai,Wolter Siemons,Carlos Gonzalez,Rajendra Timilsina,Anthony T. Wong,Anthony T. Wong,Andreas Herklotz,Paul C. Snijders,Paul C. Snijders,Elbio Dagotto,Elbio Dagotto,Thomas Z. Ward +21 more
TL;DR: The present study shows that strain can be independently and continuously controlled along a single axis and permits novel control over orbital populations through Jahn-Teller effects, as shown by Monte Carlo simulations on a double-exchange model.
104
Designing antiphase boundaries by atomic control of heterointerfaces.
Zhen Wang,Zhen Wang,Hangwen Guo,Shuai Shao,Mohammad Saghayezhian,Jun Li,Rosalba Fittipaldi,Antonio Vecchione,Prahald Siwakoti,Yimei Zhu,Jiandi Zhang,E. W. Plummer +11 more
TL;DR: This work reports an approach to create planar extended defects—antiphase boundaries (APB) —with well-defined origins via the combination of advanced growth, atomic-resolved electron microscopy, first-principals calculations, and defect theory.
53
Anomalously deep polarization in SrTiO3 (001) interfaced with an epitaxial ultrathin manganite film
Zhen Wang,Zhen Wang,Jing Tao,Liping Yu,Hangwen Guo,Lina Chen,Myung-Geun Han,Lijun Wu,Huolin L. Xin,Kim Kisslinger,E. W. Plummer,Jiandi Zhang,Yimei Zhu +12 more
TL;DR: In this article, the authors reveal a remarkably deep polarization in nonferroelectric transition metal oxides near its interface with an ultrathin nonmetallic film of the same type.
Pressure-induced large enhancement of Néel temperature and electric polarization in the hexagonal multiferroic L u 0.5 S c 0.5 Fe O 3
Fengliang Liu,Changsong Xu,Shoudong Shen,Nana Li,Hangwen Guo,Xujie Lü,Hongjun Xiang,Laurent Bellaiche,Jun Zhao,Lifeng Yin,Wenge Yang,Wenbin Wang,Jian Shen +12 more
TL;DR: In this article, high-pressure x-ray-diffraction measurements were used to show that pressure can generate large structural distortion and R-layer displacement of hexagonal ferrites, resulting in a significant enhancement of electric polarization.
21