Publication

Magnetic and transport properties of superconducting (YBa2Cu3O7-δ)1-xAgx ceramics

Publications associées (44)

Disorder-induced electronic, magnetic, and optoelectronic properties of two-dimensional materials

Technological advancement has been in cadence with material development by improving the purity of single crystals and, at the same time, controlling their imperfections. These capabilities have been especially vital for developing new technolo-gies based ...

EPFL2022

Co-Wound Superconducting Wire for Quench Detection in Fusion Magnets

Pierluigi Bruzzone, Kamil Sedlák, Davide Uglietti, Nikolay Bykovskiy

High temperature superconducting (HTS) materials are widely utilized in various design proposals for fusion magnets, resulting in enhanced performance of the machines compared to the past. However, a reliable quench detection in HTS conductors remains an o ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022

Enhanced radio-frequency performance of niobium films on copper substrates deposited by high power impulse magnetron sputtering

Fabio Avino

We present a study of radio frequency properties of niobium films deposited on copper by two different approaches based on High Power Impulse Magnetron Sputtering, namely with a DC voltage biased substrate and with bipolar target voltage. Such approaches e ...

2022

Quench behavior of high-temperature superconductor tapes for power applications: a strategy toward resilience

Nicolo' Riva

High-Temperature Superconductors (HTS) can be superconducting in liquid nitrogen 77 K, holding immense promises for our future. They can enable disruptive technologies such as nuclear fusion, lossless power transmission, cancer treatment devices, and techn ...

EPFL2021

Superconducting 2D NbS2 Grown Epitaxially by Chemical Vapor Deposition

Aleksandra Radenovic, Andras Kis, Mukesh Kumar Tripathi, Zhenyu Wang, Michal Daniel Macha, Yanfei Zhao, Guilherme Migliato Marega, Cheol Yeon Cheon, Hyungoo Ji

Metallic two-dimensional (2D) transition metal dichalcogenides (TMDCs) are attracting great attention because of their interesting low-temperature properties such as superconductivity, magnetism, and charge density waves (CDW). However, further studies and ...

2021

Quantum phase transitions and the role of impurity-substrate hybridization in Yu-Shiba-Rusinov states

Klaus Kern, Jacob Senkpiel, Haonan Huang

Spin-dependent scattering from magnetic impurities inside a superconductor gives rise to Yu-Shiba-Rusinov (YSR) states within the superconducting gap. They can be modeled by the largely equivalent Kondo or Anderson impurity models. The role of the magnetic ...

NATURE RESEARCH2020

Overcritical Current Resistivity of YBCO-Coated Conductors Through Combination of PCM and Finite-Element Analysis

Francesco Grilli, Nicolo' Riva, Bertrand Dutoit

Understanding the electro-thermal behavior of high-temperature superconductor (HTS) materials is a critical aspect for designing efficient and reliable applications. In order to optimize cost and performance, one needs to understand the role played by the ...

2019

Energy dependent structure of Xe ion tracks in YBCO and the effect on the superconductive properties in magnetic fields

Philippe Buffat, Elena Suvorova Buffat

The morphology and structure of damaged regions (tracks) produced by swift heavy 167, 77, and 46 MeV 132Xe23+ ions in YBCO-based second generation industrial high temperature superconductors wires (2G HTS) were studied using transmission electron microscop ...

2019

Magnetization loss for stacks of ReBCO tapes

Pierluigi Bruzzone, Davide Uglietti

The AC loss measurements of the high temperature superconductor (HTS) cable prototype in the EDIPO test facility motivated detailed investigations of the loss contributions from the tape, strand and cable stages of the HTS fusion conductor design proposed ...

Iop Publishing Ltd2017

HTS high current cable for fusion application

Nikolay Bykovskiy

State-of-the-art magnets of fusion devices, which are based on low temperature superconductors (LTS), have almost reached their technological limits in terms of generated magnetic fields. Further progress can be made using novel high temperature supercondu ...

EPFL2017

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