Ariando Ariando
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View article: Modulation of quantum transport in complex oxide heterostructures with proton implantation
Modulation of quantum transport in complex oxide heterostructures with proton implantation Open
Proton implantation induced modulation of quantum transport in LAO/STO heterostructures.
View article: Electrostatic gate-controlled quantum interference in a high-mobility two-dimensional electron gas at the (La$_{0.3}$Sr$_{0.7}$)(Al$_{0.65}$Ta$_{0.35}$)O$_3$/SrTiO$_3$ interface
Electrostatic gate-controlled quantum interference in a high-mobility two-dimensional electron gas at the (La$_{0.3}$Sr$_{0.7}$)(Al$_{0.65}$Ta$_{0.35}$)O$_3$/SrTiO$_3$ interface Open
We report quantum oscillations in magnetoresistance that are periodic in magnetic field ($B$), observed at the interface between (La$_{0.3}$Sr$_{0.7}$)(Al$_{0.65}$Ta$_{0.35}$)O$_3$ and SrTiO$_3$. Unlike Shubnikov-de Haas oscillations, whic…
View article: Light-Matter Interaction in Ultrastable Tunneling Nanogaps
Light-Matter Interaction in Ultrastable Tunneling Nanogaps Open
Light emission and detection through tunnel junctions have emerged as a promising platform for studying nanoscale light-matter interactions, including electroluminescence and photoassisted transport. However, controlling these interactions…
View article: Terahertz Spin‐to‐Charge Conversion in Strontium Iridate‐Based Magnetic Heterostructures
Terahertz Spin‐to‐Charge Conversion in Strontium Iridate‐Based Magnetic Heterostructures Open
Oxide interfaces have enormous potential for future electronics with many applications, such as large spin Hall conductance, phase transitions, topological states, and superconductivity. However, previous investigations have predominantly …
View article: Tuning oxygen vacancies in complex oxides using 2D layered materials
Tuning oxygen vacancies in complex oxides using 2D layered materials Open
The hybrid interface between 2D materials and complex oxides offers a rich platform to explore fascinating physical phenomena like helical edge states, broken-symmetry phases, and giant magnetoresistance. While current research primarily f…
View article: Unconventional quantum oscillations and evidence of nonparabolic electronic states in quasi-two-dimensional electron system at complex oxide interfaces
Unconventional quantum oscillations and evidence of nonparabolic electronic states in quasi-two-dimensional electron system at complex oxide interfaces Open
The simultaneous occurrence of electric-field controlled superconductivity and spin-orbit interaction makes two-dimensional electron systems (2DES) constructed from perovskite transition metal oxides promising candidates for the next gener…
View article: Nickel Age of High‐Temperature Superconductivity
Nickel Age of High‐Temperature Superconductivity Open
Unconventional high‐temperature superconductivity has long been a captivating puzzle in condensed matter physics. The 1987 Nobel Prize in Physics celebrated the discovery of high‐temperature superconductivity in copper oxide ceramics. Near…
View article: Room Temperature Strong Orbital Moments in Perpendicularly Magnetized Magnetic Insulator
Room Temperature Strong Orbital Moments in Perpendicularly Magnetized Magnetic Insulator Open
The balance between the orbital and spin magnetic moments in a magnetic system is the heart of many intriguing phenomena. Here, experimental evidence of a large orbital moment is shown, which competes with its spin counterpart in a ferrima…
View article: Extensive hydrogen incorporation is not necessary for superconductivity in topotactically reduced nickelates
Extensive hydrogen incorporation is not necessary for superconductivity in topotactically reduced nickelates Open
A key open question in the study of layered superconducting nickelate films is the role that hydrogen incorporation into the lattice plays in the appearance of the superconducting state. Due to the challenges of stabilizing highly crystall…
View article: Origin of a Topotactic Reduction Effect for Superconductivity in Infinite-Layer Nickelates
Origin of a Topotactic Reduction Effect for Superconductivity in Infinite-Layer Nickelates Open
Topotactic reduction utilizing metal hydrides as reagents has emerged as an effective approach to achieve exceptionally low oxidization states of metal ions and unconventional coordination networks. This method opens avenues to the develop…
View article: Angular Dependence of Hump‐Shape Hall Effects for Distinguishing between Karplus–Luttinger and Geometrical Origins
Angular Dependence of Hump‐Shape Hall Effects for Distinguishing between Karplus–Luttinger and Geometrical Origins Open
Among the vast magnetic heterostructures explored in Condensed Matter Physics, two contrasting interpretations of the hump‐shaped Hall Effects remain ambiguous and debated, namely, the overlap of two opposite‐signed Karplus–Luttinger Hall …
View article: Hydrogen is not necessary for superconductivity in topotactically reduced nickelates
Hydrogen is not necessary for superconductivity in topotactically reduced nickelates Open
A key open question in the study of layered superconducting nickelate films is the role that hydrogen incorporation into the lattice plays in the appearance of the superconducting state. Due to the challenges of stabilizing highly crystall…
View article: Spatially reconfigurable antiferromagnetic states in topologically rich free-standing nanomembranes
Spatially reconfigurable antiferromagnetic states in topologically rich free-standing nanomembranes Open
Antiferromagnets hosting real-space topological textures are promising platforms to model fundamental ultrafast phenomena and explore spintronics. However, they have only been epitaxially fabricated on specific symmetry-matched substrates,…
View article: Holographic imaging of antiferromagnetic domains with in-situ magnetic field
Holographic imaging of antiferromagnetic domains with in-situ magnetic field Open
Lensless coherent x-ray imaging techniques have great potential for high-resolution imaging of magnetic systems with a variety of in-situ perturbations. Despite many investigations of ferromagnets, extending these techniques to the study o…
View article: High‐Quality NiFe Thin Films on Oxide/Non‐Oxide Platforms via Pulsed Laser Deposition at Room Temperature
High‐Quality NiFe Thin Films on Oxide/Non‐Oxide Platforms via Pulsed Laser Deposition at Room Temperature Open
Soft ferromagnetic permalloy (NiFe) thin films are promising for applications in spintronic devices because of their constituent electrical and magnetic properties. Electron beam evaporation and sputtering techniques have been used to depo…
View article: LaAlO<sub>3</sub>/SrTiO<sub>3</sub> Heterointerface: 20 Years and Beyond
LaAlO<sub>3</sub>/SrTiO<sub>3</sub> Heterointerface: 20 Years and Beyond Open
This year marks the 20th anniversary of the discovery of LaAlO 3 /SrTiO 3 (LAO/STO) oxide heterointerfaces. Since their discovery, transition metal oxide (TMO) interfaces have emerged as a fascinating and fast‐growing area of research, off…
View article: Open-orbit induced low field extremely large magnetoresistance in graphene/h-BN superlattices
Open-orbit induced low field extremely large magnetoresistance in graphene/h-BN superlattices Open
We report intriguing and hitherto overlooked low-field room temperature extremely large magnetoresistance (XMR) patterns in graphene/hexagonal boron nitride (h-BN) superlattices that emerge due to the existence of open orbits within each m…
View article: Revealing emergent magnetic charge in an antiferromagnet with diamond quantum magnetometry
Revealing emergent magnetic charge in an antiferromagnet with diamond quantum magnetometry Open
Whirling topological textures play a key role in exotic phases of magnetic materials and are promising for logic and memory applications. In antiferromagnets, these textures exhibit enhanced stability and faster dynamics with respect to th…
View article: Reconfigurable Wide‐Angle Beam‐Steering Terahertz Metasurfaces Based on Vanadium Dioxide
Reconfigurable Wide‐Angle Beam‐Steering Terahertz Metasurfaces Based on Vanadium Dioxide Open
The sixth generation (6G) wireless network is envisioned to provide faster and more reliable communication by utilizing electromagnetic waves in the terahertz spectrum. However, terahertz waves suffer from high propagation loss and, hence,…
View article: Cooling times in femtosecond pump-probe experiments of phase transitions with latent heat
Cooling times in femtosecond pump-probe experiments of phase transitions with latent heat Open
Ultrafast pump-probe experiments can reveal the physics of complex materials by triggering a reaction with short laser pulses and then looking for the response. However, the repetition rate in such experiments is limited because the sample…
View article: Holographic imaging of antiferromagnetic domains with in-situ magnetic field
Holographic imaging of antiferromagnetic domains with in-situ magnetic field Open
Lensless coherent x-ray imaging techniques have great potential for high-resolution imaging of magnetic systems with a variety of in-situ perturbations. Despite many investigations of ferromagnets, extending these techniques to the study o…
View article: Tunable Spin‐Polarized States in Graphene on a Ferrimagnetic Oxide Insulator
Tunable Spin‐Polarized States in Graphene on a Ferrimagnetic Oxide Insulator Open
Spin‐polarized two‐dimensional (2D) materials with large and tunable spin‐splitting energy promise the field of 2D spintronics. While graphene has been a canonical 2D material, its spin properties and tunability are limited. Here, this wor…
View article: Competition of electronic correlation and reconstruction in La1-xSrxTiO3/SrTiO3 heterostructures
Competition of electronic correlation and reconstruction in La1-xSrxTiO3/SrTiO3 heterostructures Open
Electronic correlation and reconstruction are two important factors that play a critical role in shaping the magnetic and electronic properties of correlated low-dimensional systems. Here, we report a competition between the electronic cor…
View article: Optical Properties of Superconducting Nd<sub>0.8</sub>Sr<sub>0.2</sub>NiO<sub>2</sub> Nickelate
Optical Properties of Superconducting Nd<sub>0.8</sub>Sr<sub>0.2</sub>NiO<sub>2</sub> Nickelate Open
The intensive search for alternative noncuprate high-transition-temperature (Tc) superconductors has taken a positive turn recently with the discovery of superconductivity in infinite-layer nickelates. This discovery is expected to be the …
View article: Unconventional quantum oscillations and evidence of nonparabolic electronic states in quasi-two-dimensional electron system at complex oxide interfaces
Unconventional quantum oscillations and evidence of nonparabolic electronic states in quasi-two-dimensional electron system at complex oxide interfaces Open
The simultaneous occurrence of electric-field controlled superconductivity and spin-orbit interaction makes two-dimensional electron systems (2DES) constructed from perovskite transition metal oxides promising candidates for the next gener…
View article: Self-passivated freestanding superconducting oxide film for flexible electronics
Self-passivated freestanding superconducting oxide film for flexible electronics Open
The integration of high-temperature superconducting YBa2Cu3O6+x (YBCO) into flexible electronic devices has the potential to revolutionize the technology industry. The effective preparation of high-quality flexible YBCO films therefore pla…
View article: Topological Flat Bands in Graphene Super-moiré Lattices
Topological Flat Bands in Graphene Super-moiré Lattices Open
Moiré-pattern based potential engineering has become an important way to explore exotic physics in a variety of two-dimensional condensed matter systems. While these potentials have induced correlated phenomena in almost all commonly studi…
View article: Coexistence of surface oxygen vacancy and interface conducting states in LaAlO3/SrTiO3 revealed by low-angle resonant soft X-ray scattering
Coexistence of surface oxygen vacancy and interface conducting states in LaAlO3/SrTiO3 revealed by low-angle resonant soft X-ray scattering Open
Oxide heterostructures have shown rich physics phenomena, particularly in the conjunction of exotic insulator-metal transition (IMT) at the interface between polar insulator LaAlO3 and non-polar insulator SrTiO3 (LaAlO3/SrTiO3). Polarizati…