344 citations · 595 across the 18 of their papers we have counts for
18 papers
Modulation of Quantum Transport in Complex Oxide Heterostructures with Proton Implantation
Haidong Liang, Ganesh Ji Omar, Kun Han +3
The interfacial electronic properties of complex oxides are governed by a delicate balance between charge transfer, lattice distortions, and electronic correlations, posing a key c…
Room Temperature Strong Orbital Moments in Perpendicularly Magnetized Magnetic Insulator
Ganesh Ji Omar, Pierluigi Gargiani, Manuel Valvidares +7
The balance between the orbital and spin magnetic moments in a magnetic system is the heart of many intriguing phenomena. Here, we show experimental evidence of a large orbital mom…
Tunable Magnetic Properties in SrFeReO Double-Perovskite
Z. T. Zhang, H. Yan, Z. Huang +8
Double-perovskite oxides have attracted recent attention due to their attractive functionalities and application potential. In this paper, we demonstrate the effect of dual control…
High-quality NiFe thin films on oxide/non-oxide platforms via pulsed laser deposition at room temperature
H. Yan, G. J. Omar, Z. T. Zhao +2
Soft ferromagnetic NiFe thin films are promising for applications in spintronic devices because of their constituent electrical and magnetic properties. Electron beam evaporation a…
Magnetic proximity effect at the interface of two-dimensional materials and magnetic oxide insulators
Junxiong Hua, Jiangbo Luo, Yuntian Zheng +4
Two-dimensional (2D) materials provide a platform for developing novel spintronic devices and circuits for low-power electronics. In particular, inducing magnetism and injecting sp…
Spatially reconfigurable topological textures in freestanding antiferromagnetic nanomembranes
Hariom Jani, Jack Harrison, Sonu Hooda +11
Antiferromagnets hosting real-space topological spin textures are promising platforms to model fundamental ultrafast phenomena and explore spintronics. However, to date, they have…
Ionic modulation at the LaAlO/KTaO interface for extreme high-mobility two-dimensional electron gas
H. Yan, S. W. Zeng, K. Rubi +5
Due to the coexistence of many emergent phenomena, including 2D superconductivity and a large Rashba spin-orbit coupling, 5d transition metal oxides based two-dimensional electron…
Direct Determination of Spin-Splitting Energy in Magnetic Graphene by Landau Fan Shifts
J. X. Hu, Y. L. Han, X. Chi +10
Spin-polarized two-dimensional materials with large and tunable spin-splitting energy promise the field of 2D spintronics. While graphene has been a canonical 2D material, its spin…
Oxygen Octahedral Tilt Controlled Topological Hall Effect in Epitaxial and Freestanding SrRuO3/SrIrO3 Heterostructures
Zhi Shiuh Lim, Amy Khoong Hong Khoo, Zhou Zhou +4
The fabrication technique of freestanding oxide flakes by epitaxial lift-off has made significant contributions to the multifunctional oxide thin film research. Several highly impa…
Experimental Evidence of t2g Electron-Gas Rashba Interaction Induced by Asymmetric Orbital Hybridization
Ganesh Ji Omar, Weilong Kong, Hariom Jani +11
We report the control of Rashba spin-orbit interaction by tuning asymmetric hybridization between Ti-orbitals at the LaAlO3/SrTiO3 interface. This asymmetric orbital hybridization…
Angular dependence of hump-shape Hall Effects for distinguishing between Karplus-Luttinger and Geometrical Origins
Z. S. Lim, L. E. Chow, K. H. Khoo +7
Among the vast magnetic heterostructures explored in Condensed Matter Physics, two contrasting interpretations of the hump-shaped Hall Effects remain ambiguous and debated, namely,…
Room-temperature colossal magnetoresistance in terraced single-layer graphene
J. X. Hu, J. Gou, M. Yang +9
Disorder-induced magnetoresistance (MR) effect is quadratic at low perpendicular magnetic fields and linear at high fields. This effect is technologically appealing, especially in…
Topological Hall Effect and Skyrmion-like Bubbles at a Charge-transfer Interface
Zhi Shiuh Lim, Changjian Li, Zhen Huang +9
Exploring exotic interface magnetism due to charge transfer and strong spin-orbit coupling has profound application in future development of spintronic memory. Here, the emergence,…
Tunable and Enhanced Rashba Spin-Orbit Coupling in Iridate-Manganite Heterostructures
T. S. Suraj, Ganesh Ji Omar, Hariom Jani +8
Tailoring spin-orbit interactions and Coulomb repulsion are the key features to observe exotic physical phenomena such as magnetic anisotropy and topological spin texture at oxide…
Phase diagram and superconducting dome of infinite-layer thin films
Shengwei Zeng, Chi Sin Tang, Xinmao Yin +14
Infinite-layer Nd1-xSrxNiO2 thin films with Sr doping level x from 0.08 to 0.3 were synthesized and investigated. We found a superconducting dome to be between 0.12 and 0.235 which…
Characteristic Lengths of Interlayer Charge-Transfer in Correlated Oxide Heterostructures
Ganesh Ji Omar, Mengsha Li, Xiao Chi +12
Using interlayer interaction to control functional heterostructures with atomic-scale designs has become one of the most effective interface-engineering strategies nowadays. Here,…
Designing hybrid graphene oxide- gold nanoparticles for nonlinear optical response: Experiment and theory
Rajesh Kumar Yadav, J. Aneesh, Rituraj Sharma +6
Nonlinear optical absorption of light by materials are weak due to its perturbative nature, although a strong nonlinear response is of crucial importance to applications in optical…
Some remarks on the symplectic group
Kumar Balasubramanian, Ganesh Ji Omar
Let $G=\Sp(2g,\mathbb{Z})$ be the symplectic group over the integers. Given , it is natural to ask if there exists a non-trivial matrix such that $A^{m}=I…