53 citations · 209 across the 16 of their papers we have counts for
16 papers
Interface-engineered voltage-driven magnetic tunnel junctions with ultra-low-energy magnetization switching
Yu Zhang, Meng Xu, Bowei Zhou +9
Electric-field control of spin states offers a promising route to ultra-low-power, ultra-fast magnetization switching in spintronic devices such as magnetic tunnel junctions (MTJs)…
Anomalous vortex Hall effect in a ferromagnet/superconductor heterostructure
Weideng Sun, Przemyslaw Swatek, Yihong Fan +5
The coexistence of superconductivity and ferromagnetism is a fascinating and complex phenomenon in condensed matter physics, as these two states are typically mutually exclusive du…
Robust negative longitudinal magnetoresistance and spin-orbit torque in sputtered Pt3Sn topological semimetal
Delin Zhang, Wei Jiang, Hwanhui Yun +11
Contrary to topological insulators, topological semimetals possess a nontrivial chiral anomaly that leads to negative magnetoresistance and are hosts to both conductive bulk states…
Mending Cracks in Rutile TiO with Electron Beam
Silu Guo, Hwanhui Yun, Sreejith Nair +2
Restructuring of rutile TiO under electron beam irradiation driven by radiolysis was observed and analyzed using a combination of atomic-resolution imaging and electron energ…
Strain effect on the ground-state structure of Sr2SnO4 Ruddlesden-Popper oxides
Hwanhui Yun, Dominique Gautreau, K. Andre Mkhoyan +1
Ruddlesden-Popper (RP) oxides (ABO) comprised of perovskite (ABO) slabs can host a wider variety of structural distortions than their perovskite counte…
Room temperature spin-orbit torque efficiency in sputtered low-temperature superconductor delta-TaN
Przemyslaw Wojciech Swatek, Xudong Hang, Yihong Fan +14
In the course of searching for promising topological materials for applications in future topological electronics, we evaluated spin-orbit torques (SOTs) in high-quality sputtered…
Co-operative Influence of O2 and H2O in the Degradation of Layered Black Arsenic
Mayank Tanwar, Sagar Udyavara, Hwanhui Yun +3
Layered black arsenic (b-As) has recently emerged as a new anisotropic two-dimensional (2D) semiconducting material with applications in electronic devices. Understanding factors a…
Efficient Spin-Orbit Torques in an Antiferromagnetic Insulator with Tilted Easy Plane
Pengxiang Zhang, Chung-Tao Chou, Hwanhui Yun +4
Electrical manipulation of spin textures inside antiferromagnets represents a new opportunity for developing spintronics with superior speed and high device density. Injecting spin…
Solid Source Metal-Organic Molecular Beam Epitaxy of Epitaxial RuO2
William Nunn, Sreejith Nair, Hwanhui Yun +5
A seemingly simple oxide with a rutile structure, RuO2 has been shown to possess several intriguing properties ranging from strain-stabilized superconductivity to a strong catalyti…
Direct observation and consequences of dopant segregation inside and outside dislocation cores in perovskite BaSnO3
Hwanhui Yun, Abhinav Prakash, Turan Birol +2
Distinct dopant behaviors inside and outside dislocation cores are identified by atomic-resolution electron microscopy in perovskite BaSnO3 with considerable consequences on local…
Self-Assembled Periodic Nanostructures Using Martensitic Phase Transformations
Abhinav Prakash, Tianqi Wang, Ashley Bucsek +11
We describe a novel approach for the rational design and synthesis of self-assembled periodic nanostructures using martensitic phase transformations. We demonstrate this approach i…
Layer-dependence of dielectric response and water-enhanced ambient degradation of highly-anisotropic black As
Hwanhui Yun, Supriya Ghosh, Prafful Golani +2
Black arsenic (BAs) is a van der Waals layered material with a puckered honeycomb structure and has received increased interest due to its anisotropic properties and promising perf…
Simultaneous multi-region background subtraction for core-level EEL spectra
Jacob Held, Hwanhui Yun, K. Andre Mkhoyan
We present a multi-region extension of standard power-law background subtraction for core-level EEL spectra to improve the robustness of background removal. This method takes advan…
STEM beam channeling in BaSnO3/LaAlO3 perovskite bilayers and visualization of 2D misfit dislocation network
Hwanhui Yun, Abhinav Prakash, Bharat Jalan +2
A study of the STEM probe channeling in a heterostructures crystalline specimen is presented here with a goal to guide appropriate STEM-based characterization for complex structure…
Separating Electrons and Donors in BaSnO3 via Band Engineering
Abhinav Prakash, Nicholas F. Quackenbush, Hwanhui Yun +9
Through a combination of thin film growth, hard X-ray photoelectron spectroscopy (HAXPES), scanning transmission electron microscopy/electron energy loss spectroscopy (STEM/EELS),…
Electronic structure of BaSnO3 investigated by high-energy-resolution electron energy-loss spectroscopy and ab initio calculations
Hwanhui Yun, Mehmet Topsakal, Abhinav Prakash +6
There has been growing interest in perovskite BaSnO3 due to its desirable properties for oxide electronic devices including high electron mobility at room temperature and optical t…