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Related papers: Sketched Nanoscale KTaO3-Based Superconducting Qua…

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Tunable couplers enable high-fidelity two-qubit gates leveraging high on/off coupling ratios and reduced crosstalk within a single design. We investigate a galvanically connected direct-current superconducting quantum interference device…

We investigate the superconducting properties of the two-dimensional electron gas at the (111) LaAlO$_3$/SrTiO$_3$ interface. Using a multiorbital tight-binding model defined on a hexagonal lattice, we analyze the emergence of…

Superconductivity · Physics 2025-08-08 J. Czarnecki , M. Zegrodnik , P. Wójcik

We examine superconductivity in LaAlO$_3$/SrTiO$_3$ channels in which the channel width transitions from the 1D to 2D regime. The superconducting critical current is independent of the channel width and increases approximately linearly with…

Nonlinear microwave circuits are key elements for many groundbreaking research directions and technologies, such as quantum computation and quantum sensing. The majority of microwave circuits with Josephson nonlinearities to date is based…

Quantum Physics · Physics 2023-05-26 Kevin Uhl , Daniel Hackenbeck , Janis Peter , Reinhold Kleiner , Dieter Koelle , Daniel Bothner

While it is known that a resonant amplification of Tc in two-gap superconductors can be driven by using the Fano-Feshbach resonance tuning the chemical potential near a Lifshitz transition, little is known on tuning the Tc resonance by…

A two dimensional electronic system with novel electronic properties forms at the interface between the insulators LaAlO$_3$ and SrTiO$_3$. Samples fabricated until now have been found to be either magnetic or superconducting, depending on…

Materials Science · Physics 2015-05-13 Lu Li , C. Richter , J. Mannhart , R. C. Ashoori

Superconductivity develops in bulk doped SrTiO$_3$ and at the LaAlO$_3$/SrTiO$_3$ interface with a dome-shaped density dependence of the critical temperature $T_c$, despite different dimensionalities and geometries. We propose that the…

Superconductivity · Physics 2017-09-22 D. Valentinis , S. Gariglio , A. Fête , J. -M. Triscone , C. Berthod , D. van der Marel

The recent discovery of orientation-dependent superconductivity in KTaO3-based interfaces has attracted considerable interest, while the underlying origin remains an open question. Here we report a different approach to tune the interfacial…

Superconductivity · Physics 2025-12-02 Guowei Yang , Weifan Zhu , Jiawen Zhang , Hao Zheng , Yi Wu , Huali Zhang , Ge Ye , Dajun Su , Yanan Zhang , Chao Cao , Xin Lu , Huiqiu Yuan , Yang Liu

The resistivity of the two dimensional electron gas that forms at the interface of strontium titanate with various oxides is sensitive to irradiation with visible light. In this letter we present data on the interface between the band gap…

Superconductivity · Physics 2019-09-23 D. Arnold , D. Fuchs , K. Wolff , R. Schäfer

We present a first-principles study of the electronic structures and properties of ideal (atomically sharp) LaAlO3/SrTiO3 (001) heterointerfaces and their variants such as a new class of quantum well systems. We demonstrate the…

Materials Science · Physics 2015-05-19 Hanghui Chen , Alexie M. Kolpak , Sohrab Ismail-Beigi

Novel electronic systems forming at oxide interfaces comprise a class of new materials with a wide array of potential applications. A high mobility electron system forms at the LaAlO$_3$/SrTiO$_3$ interface and, strikingly, both…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Lu Li , C. Richter , S. Paetel , T. Kopp , J. Mannhart , R. C. Ashoori

A new nano-lithography technique compatible with conducting oxide interfaces, which requires a single lithographic step with no additional amorphous layer deposition or etching, is presented. It is demonstrated on SrTiO3/LaAlO3 interface…

Strongly Correlated Electrons · Physics 2016-07-19 E. Maniv , A. Ron , M. Goldstein , A. Palevski , Y. Dagan

LaAlO3 and SrTiO3 are insulating, nonmagnetic oxides, yet the interface between them exhibits a two-dimensional electron system with high electron mobility,1 superconductivity at low temperatures,2-6 and electric-field-tuned metal-insulator…

Superconductivity · Physics 2015-05-30 J. A. Bert , B. Kalisky , C. Bell , M. Kim , Y. Hikita , H. Y. Hwang , K. A. Moler

Continued scaling into the sub 7 nm regime exacerbates quantum limited resistivity in Cu interconnects. We evaluated layered PdCoO2 and explicitly benchmarked it against Cu to identify mechanisms that maintain conductivity under…

Materials Science · Physics 2025-08-20 Seoung-Hun Kang , Youngjun Lee , Sangmoon Yoon , JongMok Ok , Mina Yoon , Ho Nyung Lee , Young-Kyun Kwon

The superconducting order parameter at the KTaO3 interfaces and its dependence on interface orientation remains a subject of debate. The superconductivity at these interfaces exhibits strong resilience against in-plane magnetic field and…

Since the discovery of two-dimensional (2D) electron gas in LaAlO3/SrTiO3 interface, 2D carrier gases in perovskite oxides have attracted great attention because they can host many important phenomena and may produce novel functional…

Materials Science · Physics 2019-06-05 Xue-Jing Zhang , Bang-Gui Liu

In superconductivity, electrons exhibit unique macroscopic collective quantum behavior that is the key for many modern quantum technologies. This electron behavior stems vastly from coupling to a correlated motion of atoms in the material,…

Superconductivity · Physics 2020-03-20 Mohammad Suleiman , Emanuele G. Dalla Torre , Yachin Ivry

Intriguingly conducting perovskite interfaces between ordinary band insulators are widely explored, whereas similar interfaces with Mott insulators are still not quite understood. Here we address the (001), (110), and (111) interfaces…

The development of superconducting electronics requires careful characterization of the components that make up electronic circuits. Superconducting weak links are the building blocks of most superconducting electronics components and are…

Superconductivity · Physics 2024-09-20 A. Greco , Q. Pichard , E. Strambini , F. Giazotto

We investigate the superconductivity in two-dimensional electron systems formed in SrTiO3 nanostructures. Our the- oretical analysis is based on the three-orbital model, which takes into account t2g orbitals of Ti ions. Because of the…

Superconductivity · Physics 2013-07-10 Yasuharu Nakamura , Youichi Yanase