4 citations · 5 across the 11 of their papers we have counts for
11 papers
Imaging GHz surface acoustic wave modes in electrostricted LaAlO/SrTiO heterostructures
Ranjani Ramachandran, Sayanwita Biswas, Prithwijit Mandal +6
The LaAlO/SrTiO (LAO/STO) interface hosts a gate-tunable superconducting two-dimensional electron gas (2DEG) which can be programmed to create quantum devices such as balli…
Constructing a Quantum Twisting Microscope: Design Insights and Experimental Considerations
Sayanwita Biswas, Ranjani Ramachandran, Patrick Irvin +1
We report the details of construction and testing of a Quantum Twisting Microscope, a recently developed scanning probe instrument that enables twist angle dependent electronic mea…
Enhanced Superconductivity at Quantum-Critical KTaO3 Interfaces
Jieun Kim, Muqing Yu, Ahmed Omran +6
Superconductivity at oxide interfaces has intrigued researchers for decades, yet the underlying pairing mechanism remains elusive. Here we demonstrate that proximity to a ferroelec…
Electric and Magnetic Field-dependent Tunneling between Coupled Nanowires
Shashank Anand, Ranjani Ramachandran, Kitae Eom +9
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 question…
Magnetically Tuned Metal-Insulator Transition in LaAlO/SrTiO Nanowire Arrays
Ranjani Ramachandran, Shashank Anand, Kitae Eom +9
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 couple…
Nanoscale ferroelectric programming of van der Waals heterostructures
Dengyu Yang, Qingrui Cao, Erin Akyuz +8
The ability to create superlattices in van der Waals (vdW) heterostructures via moiré interference heralded a new era in the science and technology of two-dimensional materials. Th…
Long-Range Nanoelectromechanical Coupling at the LaAlO/SrTiO Interface
Aditi Nethwewala, Kitae Eom, Muqing Yu +4
The LaAlO/SrTiO interface hosts a plethora of gate-tunable electronic phases. Gating of LaAlO/SrTiO interfaces are usually assumed to occur electrostatically. Howev…
Sketched Nanoscale KTaO3-Based Superconducting Quantum Interference Device
Muqing Yu, Nicholas Hougland, Qianheng Du +8
The discovery of two-dimensional superconductivity in LaAlO3/KTaO3 (111) and (110) interfaces has raised significant interest in this system. In this manuscript we report the first…
Electronic-grade epitaxial (111) KTaO3 heterostructures
Jieun Kim, Muqing Yu, Jung-Woo Lee +13
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 va…
Theory of engineering flat bands in graphene using doubly-periodic electrostatic gating
Nicholas Hougland, Ranjani Ramachandran, Jeremy Levy +1
We explore the use of applied electrical potentials to induce band flattening in graphene for bands near zero energy. We consider various families of doubly periodic potentials and…
Spectroscopic evidence of mixed angular momentum symmetry in non-centrosymmetric RuB
Soumya Datta, Aastha Vasdev, Ranjani Ramachandran +7
Superconducting crystals with lack of inversion symmetry can potentially host unconventional pairing. However, till date, no direct conclusive experimental evidence of such unconve…