Article
Physics, Applied
M. Shibalov, A. M. Mumlyakov, I. Trofimov, E. R. Timofeeva, A. P. Sirotina, E. A. Pershina, A. M. Tagachenkov, Y. Anufriev, E. Zenova, N. Porokhov, M. A. Tarkhov
Summary: This study utilized plasma-enhanced atomic layer deposition to produce ultrathin superconductive niobium nitride films with a record resistivity of 147 microohm·cm. Experimental findings revealed that the resistivity of the films influences the critical current density.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Yasen Hou, Fabrizio Nichele, Hang Chi, Alessandro Lodesani, Yingying Wu, Markus F. Ritter, Daniel Z. Haxell, Margarita Davydova, Stefan Ilic, Ourania Glezakou-Elbert, Amith Varambally, Sebastian Bergeret, Akashdeep Kamra, Liang Fu, Patrick A. Lee, Jagadeesh S. Moodera
Summary: The macroscopic coherence in superconductors allows for dissipationless supercurrents, which can have significant implications in emerging quantum technologies. By implementing unequal supercurrents in the forward and backward directions, the superconducting diode effect can be achieved, enabling unprecedented functionalities. Through experiments and theoretical modeling, we demonstrate the strong superconducting diode effect in conventional superconducting thin films, as well as its enhancement when interfacing with a ferromagnetic semiconductor.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Physical
T. Roch, M. Gregor, S. Volkov, M. Caplovicova, L. Satrapinskyy, A. Plecenik
Summary: This study examined the impact of different substrates on the structure and orientation of niobium nitride thin films, revealing that films on C-Al2O3 substrate exhibited the best superconducting properties.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Chang Gao, Yujing Ran, Qian Guo, Tianrun Wang, Huiping Lu, Zhaotan Jiang, Zhi Wang
Summary: NbNx films were prepared by dual ion beam sputter deposition to modulate their structural and dielectric properties. Assisting ions can improve crystallinity, reduce energy loss, and lead to tunable dual epsilon-near-zero behavior in the films. Tailoring plasmonic properties with assisting ions allows NbNx films to be applied in various fields.
SURFACES AND INTERFACES
(2021)
Article
Multidisciplinary Sciences
Sachin Yadav, Vinay Kaushik, M. P. Saravanan, R. P. Aloysius, V Ganesan, Sangeeta Sahoo
Summary: Disorder induced phase slip events were observed in current voltage characteristics of two-dimensional TiN thin films produced through robust substrate mediated nitridation technique. The critical temperature and resistive steps in the characteristics were found to vary strongly with annealing temperature and thickness, indicating the robustness of the synthesis process in fabricating disordered nitride-based superconductor.
SCIENTIFIC REPORTS
(2021)
Article
Physics, Applied
Dhavala Suri, Akashdeep Kamra, Thomas N. G. Meier, Matthias Kronseder, Wolfgang Belzig, Christian H. Back, Christoph Strunk
Summary: Non-reciprocity in the critical current, known as the superconducting diode effect, has been observed in NbN micro-bridges and NbN/magnetic insulator hybrids. The origin of this effect is related to the symmetry breaking mechanisms. The diode effect disappears when the magnetic field is parallel to the sample plane. The rectification is observed at temperatures up to 10 K, expanding the potential applications of this device.
APPLIED PHYSICS LETTERS
(2022)
Article
Multidisciplinary Sciences
A. Stangl, A. Palau, G. Deutscher, X. Obradors, T. Puig
Summary: The functional properties of cuprates are strongly influenced by oxygen doping, as demonstrated in this study of YBCO thin films. The relation between charge carrier density, hole doping, and critical current density was explored, revealing a significant increase of Jc with nH. Overdoping in YBCO was found to enhance current carrying capabilities through the reconstruction of the Fermi surface at the Quantum Critical Point (QCP).
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Multidisciplinary
Xuepei Wang, Zhengang Wu, Yingna Wei, Mingming Wu, Ying Chen, Shilei Hu, Yuan Pei, Yi Cui, Dongfeng Lv, Yuejun Chen, Hengyong Wei, Jinglong Bu
Summary: Niobium nitride thin films, synthesized as novel substrates for surface-enhanced Raman spectroscopy via reduction nitridation of Nb(2)O5 thin films, exhibit excellent SERS performance and optical properties, with optimal results achieved at 800 degrees C.
Article
Physics, Applied
Zhengyuan Liu, Bingcheng Luo, Labao Zhang, Boyu Hou, Danyang Wang
Summary: This study investigates the effect of photons on vortex dynamics in amorphous MoSi superconducting thin films through electrical transport measurements. The results show that photon-induced reduction in the potential barrier enhances vortex depinning, mitigating the adverse effect of film inhomogeneity on superconductivity. Understanding vortex dynamics in a-MoSi thin films under external stimuli is important for further fundamental research and optimizing future superconducting devices.
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
(2021)
Article
Physics, Applied
Zeyu Liu, Tengfei Luo
Summary: The thermal transport properties of metallic transition-metal nitrides, particularly NbN, have been studied revealing that phonons play a larger role compared to electrons in hexagonal NbN. This deeper understanding can aid in the design of semiconductor/superconductor heterostructures.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Applied
Kevin M. Ryan, Carlos G. Torres-Castanedo, Dominic P. Goronzy, David A. Garcia Wetten, Mark Field, Cameron J. Kopas, Jayss Marshall, Matthew J. Reagor, Michael J. Bedzyk, Mark C. Hersam, Venkat Chandrasekhar
Summary: Continued advances in superconducting qubit performance require a better understanding of the sources of decoherence. Defects in Nb films are thought to be a major cause of qubit decoherence. By measuring the variation of the superconducting critical temperature with an applied magnetic field, the properties of Nb films and different treatments can be evaluated quickly.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Applied
Cecile Xinqing Yu, Simon Zihlmann, Gonzalo Troncoso Fernandez-Bada, Jean-Luc Thomassin, Frederic Gustavo, Etienne Dumur, Romain Maurand
Summary: NbN resonators exhibit high internal quality factors under different magnetic field conditions, making them a compelling choice for circuit quantum electrodynamics experiments involving quantum systems with small electric dipole moments.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Rahmatul Hidayati, Jin Hee Kim, Soon-Gil Jung, Ki-Sub Cho, Jae Hyun Yun, Jong-Soo Rhyee
Summary: We investigated the superconducting properties of medium entropy alloys Nb2/5Hf1/5Zr1/5Ti1/5 synthesized by different methods. The samples exhibited different superconducting transition temperatures and critical magnetic fields. The spark plasma sintering method showed better performance in critical current density, suggesting possible practical applications.
Article
Materials Science, Coatings & Films
Chanwon Jung, Seokhwi Song, Hyunwoo Park, Youngjoon Kim, Eun Jong Lee, Sung Gwon Lee, Hyeongtag Jeon
Summary: The study investigated amorphous SiCN thin films deposited by remote plasma atomic layer deposition using different deposition temperatures and plasma powers. It was found that the carbon content and dielectric constant of the film can be controlled by varying these parameters, impacting the chemical composition and wet etch rate.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2021)
Article
Multidisciplinary Sciences
Ze Jing
Summary: Structural defects have a significant impact on the stability of superconductivity, with the extension of edge cracks in superconducting films affecting the threshold field, avalanche patterns, and multifractal spectrum of the thermomagnetic instability process. This study systematically investigates the effects of edge cracks on the thermomagnetic instability of superconducting thin films. Through simulations, dendritic flux avalanches in thin films are reproduced, and the underlying physical mechanisms are revealed from dissipative vortex dynamics simulations.
NATIONAL SCIENCE REVIEW
(2023)
Article
Engineering, Electrical & Electronic
Andreas Engel, Julia Lonsky, Xiaofu Zhang, Andreas Schilling
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2015)
Article
Engineering, Electrical & Electronic
H. R. Rossmann, A. Bubendorf, F. Zanella, N. Marjanovic, M. Schnieper, E. Meyer, T. A. Jung, J. Gobrecht, R. A. Minamisawa, H. Bartolf
MICROELECTRONIC ENGINEERING
(2015)
Article
Engineering, Electrical & Electronic
H. Bartolf, U. Gysin, T. Glatzel, H. R. Rossmann, T. A. Jung, S. A. Reshanov, A. Schoner, E. Meyer
MICROELECTRONIC ENGINEERING
(2015)
Article
Nanoscience & Nanotechnology
Urs Gysin, Thilo Glatzel, Thomas Schmoelzer, Adolf Schoner, Sergey Reshanov, Holger Bartolf, Ernst Meyer
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2015)
Article
Physics, Applied
Aleksey I. Mikhaylov, Alexey V. Afanasyev, Victor V. Luchinin, Sergey A. Reshanov, Adolf Schoner, Lars Knoll, Renato A. Minamisawa, Giovanni Alfieri, Holger Bartolf
JAPANESE JOURNAL OF APPLIED PHYSICS
(2016)
Article
Engineering, Electrical & Electronic
U. Gysin, E. Meyer, Th. Glatzel, G. Guenzburger, H. R. Rossmann, T. A. Jung, S. Reshanov, A. Schoener, H. Bartolf
MICROELECTRONIC ENGINEERING
(2016)
Article
Engineering, Electrical & Electronic
Andreas Engel, Kevin Inderbitzin, Andreas Schilling, Robert Lusche, Alexei Semenov, Heinz-Wilhelm Huebers, Dagmar Henrich, Matthias Hofherr, Konstantin Il'in, Michael Siegel
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2013)
Article
Engineering, Electrical & Electronic
Kevin Inderbitzin, Andreas Engel, Andreas Schilling
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2013)
Article
Engineering, Manufacturing
Holger Bartolf, Andrei Mihaila, Iulian Nistor, Michael Jurisch, Bernd Leibold, Martin Zimmermann
IEEE TRANSACTIONS ON SEMICONDUCTOR MANUFACTURING
(2013)
Article
Physics, Applied
Andreas Engel, Andreas Schilling
JOURNAL OF APPLIED PHYSICS
(2013)
Article
Physics, Applied
K. Il'in, M. Hofherr, D. Rall, M. Siegel, A. Semenov, A. Engel, K. Inderbitzin, A. Aeschbacher, A. Schilling
JOURNAL OF LOW TEMPERATURE PHYSICS
(2012)
Proceedings Paper
Computer Science, Theory & Methods
A. Mihaila, V. K. Sundaramoorthy, R. Minamisawa, L. Knoll, H. Bartolf, E. Bianda, G. Alfieri, M. Rahimo
2016 28TH INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES AND ICS (ISPSD)
(2016)
Proceedings Paper
Energy & Fuels
H. Bartolf, A. Mihaila, L. Knoll, V. K. Sundaramoorthy, R. A. Minamisawa, E. Bianda
2015 17TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE'15 ECCE-EUROPE)
(2015)
Proceedings Paper
Computer Science, Hardware & Architecture
H. Bartolf, U. Gysin, H. R. Rossmann, A. Bubendorf, T. Glatzel, T. A. Jung, E. Meyer, M. Zimmermann, S. Reshanov, A. Schoner
2015 IEEE 27TH INTERNATIONAL SYMPOSIUM ON POWER SEMICONDUCTOR DEVICES & IC'S (ISPSD)
(2015)
Proceedings Paper
Crystallography
H. Bartolf, V. Sundaramoorthy, A. Mihaila, M. Berthou, P. Godignon, J. Millan
SILICON CARBIDE AND RELATED MATERIALS 2013, PTS 1 AND 2
(2014)
