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View article: Scalable Programming of LaAlO <sub>3</sub> /SrTiO <sub>3</sub> Interfaces via Ultra‐Low‐Voltage Electron‐Beam Lithography
Scalable Programming of LaAlO <sub>3</sub> /SrTiO <sub>3</sub> Interfaces via Ultra‐Low‐Voltage Electron‐Beam Lithography Open
Interface engineering at complex oxide heterostructures enables a wide range of electronic functionalities critical for next‐generation devices. Here it is demonstrated that ultra‐low‐voltage electron beam lithography (ULV‐EBL) creates hig…
View article: Nanoscale control of LaAlO3/SrTiO3 conductance beyond the polar catastrophe
Nanoscale control of LaAlO3/SrTiO3 conductance beyond the polar catastrophe Open
Conductive atomic force microscope (c-AFM) lithography can be utilized to create a wide range of LaAlO3/SrTiO3 (LAO/STO)-based nanoelectronic devices in a reconfigurable manner. Experiments were generally performed with intrinsically insul…
View article: Highly stable two-level current fluctuation in complex oxide heterostructures
Highly stable two-level current fluctuation in complex oxide heterostructures Open
Two-level systems based on point defects in dielectric oxides offer promising entropy source for random number generators. The random telegraph noise (RTN) generated by the two-level systems is ideal for creating random bit-strings for adv…
View article: Machine Learning Approach to Characterize Ferromagnetic La <sub>0.7</sub> Sr <sub>0.3</sub> MnO <sub>3</sub> Thin Films via Featurization of Surface Morphology
Machine Learning Approach to Characterize Ferromagnetic La <sub>0.7</sub> Sr <sub>0.3</sub> MnO <sub>3</sub> Thin Films via Featurization of Surface Morphology Open
Ferromagnetic perovskite oxides, particularly La 0.7 Sr 0.3 MnO 3 (LSMO), show significant promise for spintronics and electromagnetic applications due to their unique half‐metallicity and colossal magnetoresistance properties. These prop…
View article: Electric and Magnetic Field-dependent Tunneling between Coupled Nanowires
Electric and Magnetic Field-dependent Tunneling between Coupled Nanowires Open
Coupled quasi-one-dimensional (quasi-1D) electron systems host rich emergent physics that cannot be accounted for by understanding isolated 1D electron systems alone. Open questions remain about how transport in these arrays can be manipul…
View article: Magnetically Tuned Metal-Insulator Transition in LaAlO$_3$/SrTiO$_3$ Nanowire Arrays
Magnetically Tuned Metal-Insulator Transition in LaAlO$_3$/SrTiO$_3$ Nanowire Arrays Open
A wide family of two dimensional (2D) systems, including stripe-phase superconductors, sliding Luttinger liquids, and anisotropic 2D materials, can be modeled by an array of coupled one-dimensional (1D) electron channels or nanowire arrays…
View article: Long‐Range Non‐Coulombic Coupling at the LaAlO<sub>3</sub>/SrTiO<sub>3</sub> Interface
Long‐Range Non‐Coulombic Coupling at the LaAlO<sub>3</sub>/SrTiO<sub>3</sub> Interface Open
The LaAlO 3 /SrTiO 3 interface hosts a plethora of gate‐tunable electronic phases. Gating of LaAlO 3 /SrTiO 3 interfaces is usually assumed to occur electrostatically. However, increasing evidence suggests that non‐local interactions can i…
View article: Electronic-grade epitaxial (111) KTaO <sub>3</sub> heterostructures
Electronic-grade epitaxial (111) KTaO <sub>3</sub> heterostructures Open
KTaO 3 heterostructures have recently attracted attention as model systems to study the interplay of quantum paraelectricity, spin-orbit coupling, and superconductivity. However, the high and low vapor pressures of potassium and tantalum p…
View article: Long-Range Nanoelectromechanical Coupling at the LaAlO$_3$/SrTiO$_3$ Interface
Long-Range Nanoelectromechanical Coupling at the LaAlO$_3$/SrTiO$_3$ Interface Open
The LaAlO$_3$/SrTiO$_3$ interface hosts a plethora of gate-tunable electronic phases. Gating of LaAlO$_3$/SrTiO$_3$ interfaces are usually assumed to occur electrostatically. However, increasing evidence suggests that non-local interaction…
View article: Low-frequency noise behaviors of quasi-two-dimensional electron systems based on complex oxide heterostructures
Low-frequency noise behaviors of quasi-two-dimensional electron systems based on complex oxide heterostructures Open
We report the low-frequency noise behaviors in quasi-two-dimensional (quasi-2D) electron systems based on complex oxide heterostructures. First, the surface 2D electron gas (2DEG) on SrTiO3 (STO) exhibits the 1/fα-type current power spectr…
View article: Electron pairing and nematicity in LaAlO3/SrTiO3 nanostructures
Electron pairing and nematicity in LaAlO3/SrTiO3 nanostructures Open
Strongly correlated electronic systems exhibit a wealth of unconventional behavior stemming from strong electron-electron interactions. The LaAlO 3 /SrTiO 3 (LAO/STO) heterostructure supports rich and varied low-temperature transport chara…
View article: Electronic-grade epitaxial (111) KTaO3 heterostructures
Electronic-grade epitaxial (111) KTaO3 heterostructures Open
KTaO3 has recently attracted attention as a model system to study the interplay of quantum paraelectricity, spin-orbit coupling, and superconductivity. However, the high and low vapor pressures of potassium and tantalum present processing …
View article: Surface acoustic wave generation and detection in the quantum paraelectric regime of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>SrTiO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>-based heterostructures
Surface acoustic wave generation and detection in the quantum paraelectric regime of -based heterostructures Open
Strontium titanate (STO), apart from being a ubiquitous substrate for complex-oxide heterostructures, possesses a multitude of strongly coupled electronic and mechanical properties. Surface acoustic wave (SAW) generation and detection offe…
View article: Mott‐Limited Thermopower of Pascal Electron Liquid Phases at the LaAlO<sub>3</sub>/SrTiO<sub>3</sub> Interface
Mott‐Limited Thermopower of Pascal Electron Liquid Phases at the LaAlO<sub>3</sub>/SrTiO<sub>3</sub> Interface Open
The cover image shows the signature conductance behavior of the Pascal electron liquid phase, observed in LaAlO3/SrTiO3 electron waveguides. The thermoelectric properties of this system are defined by the existence of electronic states in …
View article: Surface triggered stabilization of metastable charge-ordered phase in SrTiO3
Surface triggered stabilization of metastable charge-ordered phase in SrTiO3 Open
Charge ordering (CO), periodic modulation of electron density and lattice distortion, has been the fundamental subject in condensed matter physics, as well as a potential platform to induce novel functional properties. The charge-ordered p…
View article: Surface acoustic wave generation and detection in quantum paraelectric regime of SrTiO$_3$-based heterostructure
Surface acoustic wave generation and detection in quantum paraelectric regime of SrTiO$_3$-based heterostructure Open
Strontium titanate (STO), apart from being a ubiquitous substrate for complex-oxide heterostructures, possesses a multitude of strongly-coupled electronic and mechanical properties. Surface acoustic wave (SAW) generation and detection offe…
View article: Electron Pairing and Nematicity in LaAlO$_3$/SrTiO$_3$ Nanostructures
Electron Pairing and Nematicity in LaAlO$_3$/SrTiO$_3$ Nanostructures Open
Strongly correlated electronic systems exhibit a wealth of unconventional behavior stemming from strong electron-electron interactions. The LaAlO$_3$/SrTiO$_3$ (LAO/STO) heterostructure supports rich and varied low-temperature transport ch…
View article: Quantum coherence tomography of light-controlled superconductivity
Quantum coherence tomography of light-controlled superconductivity Open
The coupling between superconductors and oscillation cycles of light pulses, i.e., lightwave engineering, is an emerging control concept for superconducting quantum electronics. Although progress has been made towards terahertz-driven supe…
View article: Oxide Two‐Dimensional Electron Gas with High Mobility at Room‐Temperature
Oxide Two‐Dimensional Electron Gas with High Mobility at Room‐Temperature Open
The prospect of 2‐dimensional electron gases (2DEGs) possessing high mobility at room temperature in wide‐bandgap perovskite stannates is enticing for oxide electronics, particularly to realize transparent and high‐electron mobility transi…
View article: In-plane quasi-single-domain BaTiO<sub>3</sub> via interfacial symmetry engineering.
In-plane quasi-single-domain BaTiO<sub>3</sub> via interfacial symmetry engineering. Open
The control of the in-plane domain evolution in ferroelectric thin films is not only critical to understanding ferroelectric phenomena but also to enabling functional device fabrication. However, in-plane polarized ferroelectric thin films…
View article: Low-voltage magnetoelectric coupling in membrane heterostructures
Low-voltage magnetoelectric coupling in membrane heterostructures Open
Membrane-based heterostructure, verified experimentally and theoretically, opens possibiliies for low-power magnetoelectrics.
View article: Multi-level Memristors based on Two-dimensional Electron Gases in Oxide Heterostructures for High Precision Neuromorphic Computing
Multi-level Memristors based on Two-dimensional Electron Gases in Oxide Heterostructures for High Precision Neuromorphic Computing Open
Memristors are essential elements for hardware implementation of artificial neural networks. The key functionality of the memristors is to realize multiple non-volatile conductance states with high precision. However, the variation of devi…
View article: Low-Voltage Magnetoelectric Coupling in Membrane Heterostructures
Low-Voltage Magnetoelectric Coupling in Membrane Heterostructures Open
Strain-mediated magnetoelectric (ME) coupling in ferroelectric (FE) / ferromagnetic (FM) heterostructures offers a unique opportunity for both fundamental scientific research and low power multifunctional devices. Relaxor-ferroelectrics, l…
View article: Oxide two-dimensional electron gas with high mobility at room-temperature
Oxide two-dimensional electron gas with high mobility at room-temperature Open
The prospect of 2-dimensional electron gases (2DEGs) possessing high mobility at room temperature in wide-bandgap perovskite stannates is enticing for oxide electronics, particularly to realize transparent and high-electron mobility transi…