Publications (22)
Optical Properties of Superconducting Nd0.8Sr0.2NiO2 Nickelate
Rebecca Cervasio, Luca Tomarchio, Marine Verseils +6
The intensive search for alternative non-cuprate high-transition-temperature () superconductors has taken a positive turn recently with the discovery of superconductivity in i…
Controlled alignment of supermoiré lattice in double-aligned graphene heterostructures
Junxiong Hu, Junyou Tan, Mohammed M. Al Ezzi +12
The supermoiré lattice, built by stacking two moiré patterns, provides a platform for creating flat mini-bands and studying electron correlations. An ultimate challenge in assemb…
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,…
Open-orbit induced low field extremely large magnetoresistance in graphene/h-BN superlattices
Zihao Wang, Pablo M. Perez-Piskunow, Calvin Pei Yu Wong +13
We report intriguing and hitherto overlooked low-field room temperature extremely large magnetoresistance (XMR) patterns in graphene/hexagonal boron nitride (h-BN) superlattices th…
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…
Net Magnetization and Inhomogeneous Magnetic Order in a High-Tc Nickelate Superconductor
Alexander J. Grutter, Nurul Fitriyah, Brian B. Maranville +10
High-temperature and high-magnetic-field-induced re-entrant superconductivity has been discovered in the infinite-layer nickelate (SECNO). In…
Direct observation of two-dimensional small polarons at correlated oxide interface
Chi Sin Tang, Shengwei Zeng, Jing Wu +14
Two-dimensional (2D) perovskite oxide interfaces are ideal systems where diverse emergent properties can be uncovered.The formation and modification of polaronic properties due to…
Revealing Emergent Magnetic Charge in an Antiferromagnet with Diamond Quantum Magnetometry
Anthony K. C. Tan, Hariom Jani, Michael Högen +9
Whirling topological textures play a key role in exotic phases of magnetic materials and offer promise for logic and memory applications. In antiferromagnets, these textures exhibi…
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…
Cladding Layer Enhanced GHz Bulk Acoustic Wave Resonance in Sodium Niobate Thin Films on Silicon
Zhi Shiuh Lim, Qibin Zeng, Hui Kim Hui +17
Bulk acoustic wave resonators (BAWR) and bandpass filters operating at GHz frequency are the workhorse of (Vo-)LTE telecommunication and broadband internet. In line with the Singap…
Two-Dimensional Charge Localization at the Perovskite Oxide Interface
Chi Sin Tang, Shengwei Zeng, Caozheng Diao +7
The effects of atomic-scale disorder and charge (de)localization holds significant importance,and they provide essential insights in unravelling the role that strong and weak corre…
Checkerboard-type Zhang-Rice States in Overdoped Cuprate Superconductors
Xiongfang Liu, Kun Han, Yan Peng +13
Cuprate superconductors remain central to condensed matter physics due to their technological relevance and unconventional, incompletely understood electronic behavior. While the 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…
Self-passivated freestanding superconducting oxide film for flexible electronics
Zhuoyue Jia, Chi Sin Tang, Jing Wu +12
The integration of high-temperature superconducting YBa2Cu3O6+x (YBCO) into flexible electronic devices has the potential to revolutionize the technology industry. The effective pr…
Unconventional quantum oscillations and evidence of nonparabolic electronic states in quasi-two-dimensional electron system at complex oxide interfaces
Km Rubi, Denis R. Candido, Manish Dumen +10
The simultaneous occurrence of electric-field controlled superconductivity and spin-orbit interaction makes two-dimensional electron systems (2DES) constructed from perovskite tran…
Interfacial Polarons Driven by Charge Transfer In WSe2/Cuprate Superconductor Systems
Huimin Liu, Tong Yang, Xiongfang Liu +13
Understanding the electronic properties of doped copper-oxygen planes remains a significant challenge in condensed matter physics and is crucial to unraveling the mechanisms behind…
Coexistence of surface oxygen vacancy and interface conducting states in LaAlO3/SrTiO3 revealed by low-angle resonant soft X-ray scattering
Ming Yang, Ariando Ariando, Caozheng Diao +13
Oxide heterostructures have shown rich physics phenomena, particularly in the conjunction of exotic insulator-metal transition (IMT) at the interface between polar insulator LaAlO3…
Competition of electronic correlation and reconstruction in La1-xSrxTiO3/SrTiO3 heterostructures
Xueyan Wang, Lin Sun, Chen Ye +10
Electronic correlation and reconstruction are two important factors that play a critical role in shaping the magnetic and electronic properties of correlated low-dimensional system…
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…
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,…
Interfacial Strain Modulated Correlated Plasmons in La1.85Sr0.15CuO4 and Their Role in High-temperature Superconductivity
Xiongfang Liu, Shengwei Zeng, Xun Liu +9
High-temperature superconductivity in cuprate materials remains a major challenge in physics due to the complexity of their strongly correlated electronic states. Interfacial strai…
Phase-controllable growth of ultrathin 2D magnetic FeTe crystals
Lixing Kang, Chen Ye, Xiaoxu Zhao +27
Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronics devices. However, the synthesis of 2D magn…