Z
Zhiqi Liu
Researcher at Beihang University
Publications - 108
Citations - 4224
Zhiqi Liu is an academic researcher from Beihang University. The author has contributed to research in topics: Spintronics & Antiferromagnetism. The author has an hindex of 29, co-authored 98 publications receiving 3329 citations. Previous affiliations of Zhiqi Liu include Chinese Academy of Sciences & University of Pittsburgh.
Papers
More filters
Journal ArticleDOI
Electronic phase separation at the LaAlO3/SrTiO3 interface
Ariando,X.P. Wang,G. Baskaran,Zhiqi Liu,J. Huijben,Jiabao Yi,Anil Annadi,A. Roy Barman,Andrivo Rusydi,Sankar Dhar,Yuan Ping Feng,Jun Ding,Hans Hilgenkamp,Thirumalai Venkatesan +13 more
TL;DR: An EPS state is reported at the LaAlO(3)/SrTiO (3) interface, where the interface charges are separated into regions of a quasi-two-dimensional electron gas, a ferromagnetic phase, which persists above room temperature, and a diamagnetic/paramagnetic phase below 60 K.
Journal ArticleDOI
Atomically engineered ferroic layers yield a room-temperature magnetoelectric multiferroic
Julia A. Mundy,Charles M. Brooks,Megan E. Holtz,Jarrett A. Moyer,Hena Das,Alejandro Rebola,John T. Heron,John T. Heron,James D. Clarkson,Steven Disseler,Zhiqi Liu,Alan Farhan,Rainer Held,Robert Hovden,Elliot Padgett,Q. Mao,Hanjong Paik,Rajiv Misra,Lena F. Kourkoutis,Elke Arenholz,Andreas Scholl,Julie A. Borchers,William Ratcliff,Ramamoorthy Ramesh,Ramamoorthy Ramesh,Craig J. Fennie,Peter Schiffer,David A. Muller,Darrell G. Schlom +28 more
TL;DR: The results demonstrate a design methodology for creating higher-temperature magnetoelectric multiferroics by exploiting a combination of geometric frustration, lattice distortions and epitaxial engineering.
Journal ArticleDOI
Origin of the two-dimensional electron gas at LaAlO3/SrTiO3 interfaces: The role of oxygen vacancies and electronic reconstruction
Zhiqi Liu,Changjian Li,W. M. Lü,Xiaohu Huang,Zhen Huang,Shengwei Zeng,Xuepeng Qiu,Lisen Huang,Anil Annadi,Jingsheng Chen,J. M. D. Coey,Thirumalai Venkatesan,Ariando +12 more
TL;DR: In this paper, a comprehensive comparison of (100)-oriented SrTiO3 substrates with crystalline and amorphous overlayers of LaAlO3 of different thicknesses prepared under different oxygen pressures was conducted.
Journal ArticleDOI
Origin of the Two-Dimensional Electron Gas at LaAlO 3 /SrTiO 3 Interfaces: The Role of Oxygen Vacancies and Electronic Reconstruction
Zhiqi Liu,Changjian Li,W. M. Lü,Xiaohu Huang,Zhen Huang,Shengwei Zeng,Xuepeng Qiu,Lisen Huang,Anil Annadi,Jingsheng Chen,J. M. D. Coey,J. M. D. Coey,Thirumalai Venkatesan,Ariando +13 more
TL;DR: In this article, the electrical properties of amorphous and crystalline LaAlO/SrTiO heterostructures were compared and it was shown that the answer depends on the structure of the overlayer.
Journal ArticleDOI
Electrical switching of the topological anomalous Hall effect in a non-collinear antiferromagnet above room temperature
Zhiqi Liu,Hua Chen,Hua Chen,J. M. Wang,J. H. Liu,K. Wang,Z. X. Feng,H. Yan,X. R. Wang,C. B. Jiang,J. M. D. Coey,J. M. D. Coey,Allan H. MacDonald +12 more
TL;DR: The anomalous Hall effect is allowed by symmetry in some non-collinear antiferromagnets and is associated with Bloch-band topological features as discussed by the authors, which is of interest in the development of low power electronic devices, but such devices are likely to demand electrical control over the effect.