219 citations · 612 across the 13 of their papers we have counts for
13 papers
Electron Accumulation and Emergent Magnetism in LaMnO3/SrTiO3 Heterostructures
Zuhuang Chen, Zhanghui Chen, Z. Q. Liu +19
Emergent phenomena at polar-nonpolar oxide interfaces have been studied intensely in pursuit of next-generation oxide electronics and spintronics. Here we report the disentanglemen…
Two-dimensional superconductor-insulator quantum phase transitions in an electron-doped cuprate
S. W. Zeng, Z. Huang, W. M. Lv +12
We use ionic liquid-assisted electric field effect to tune the carrier density in an electron-doped cuprate ultrathin film and cause a two-dimensional superconductor-insulator tran…
Dominant role of oxygen vacancies in electrical properties of unannealed LaAlO3/SrTiO3 interfaces
Z. Q. Liu, L. Sun, Z. Huang +6
We report that in unannealed LaAlO3/SrTiO3 (LAO/STO) heterostructures the critical thickness for the appearance of the two-dimensional electron gas can be less than 4 unit cell (uc…
Origin of the two-dimensional electron gas at LaAlO3/SrTiO3 interfaces: The role of oxygen vacancies and electronic reconstruction
Z. Q. Liu, C. J. Li, W. M. Lü +10
The relative importance of atomic defects and electron transfer in explaining conductivity at the crystalline LaAlO3/SrTiO3 interface has been a topic of debate. Metallic interface…
Anisotropic Magneto Resistance and Planar Hall Effect at the LaAlO/SrTiO Heterointerfaces: Effect of Carrier Confinement on Magnetic Interactions
A. Annadi, Z. Huang, K. Gopinadhan +7
The confinement of the two dimensional electron gas (2DEG), preferential occupancy of the Ti 3d orbital and strong spin-orbit coupling at the LaAlO/SrTiO interface play a s…
Tailoring the electronic properties of SrRuO3 films in SrRuO3/LaAlO3 superlattices
Z. Q. Liu, M. Yang, W. M. Lü +10
The electronic properties of SrRuO3/LaAlO3 (SRO/LAO) superlattices with different interlayer thicknesses of SRO layers were studied. As the thickness of SRO layers is reduced, the…
Evolution of variable range hopping in strongly localized two dimensional electron gas at NdAlO3/SrTiO3 (100) heterointerfaces
A. Annadi, A. Putra, A. Srivastava +5
We report evolution of the two-dimensional electron gas behavior at the NdAlO3/SrTiO3 heterointerfaces with varying thicknesses of the NdAlO3 overlayer. The samples with a thicker…
Metallic state in La-doped YBaCuO thin films with -type charge carriers
S. W. Zeng, X. Wang, W. M. Lü +10
We report hole and electron doping in La-doped YBaCuO(YBCO) thin films synthesized by pulsed laser deposition technique and subsequent \emph{in-situ} postannealing in o…
Magnetic-field induced resistivity minimum with in-plane linear magnetoresistance of the Fermi liquid in SrTiO3-x single crystals
Z. Q. Liu, W. M. Lü, X. Wang +5
We report novel magnetotransport properties of the low temperature Fermi liquid in SrTiO3-x single crystals. The classical limit dominates the magnetotransport properties for a mag…
Reversible room-temperature ferromagnetism in Nb-doped SrTiO3 single crystals
Z. Q. Liu, W. M. Lu, S. L. Lim +8
The search for oxide-based room-temperature ferromagnetism has been one of the holy grails in condensed matter physics. Room-temperature ferromagnetism observed in Nb-doped SrTiO3…
Magnetoresistance of 2D and 3D Electron Gas in LaAlO3/SrTiO3 Heterostructures: Influence of Magnetic Ordering, Interface Scattering and Dimensionality
X. Wang, W. M Lü, A. Annadi +4
Magnetoresistance (MR) anisotropy in LaAlO3/SrTiO3 (LAO/STO) interfaces is compared between samples prepared in high oxygen partial pressure (PO2) of 10-4 mbar exhibiting quasi-two…
Reversible metal-insulator transition in LaAlO3 thin films mediated by intragap defects: An alternative mechanism for resistive switching
Z. Q. Liu, D. P. Leusink, W. M. Lü +13
We report on the electric-field-induced reversible metal-insulator transition (MIT) of the insulating LaAlO3 thin films observed in metal/LaAlO3/Nb-SrTiO3 heterostructures. The swi…
Nonlinear Insulator in Complex Oxides
Z. Q. Liu, D. P. Leusink, W. M. Lü +10
The insulating state is one of the most basic electronic phases in condensed matter. This state is characterised by an energy gap for electronic excitations that makes an insulator…