English
Related papers

Related papers: High current DyBCO-ROEBEL Assembled Coated Conduct…

200 papers

We present direct imaging measurements of charge transport across a 1 cm x 1 cm x 4 mm-thick crystal of high purity silicon ($\sim$15 k$\Omega$-cm) at temperatures of 5 K and 500 mK. We use these data to measure the lateral diffusion of…

High-temperature superconducting YBa2Cu3O7-d (YBCO) thin-film detectors with improved responsivities were developed for fast time-domain measurements in the THz frequency range. YBCO thin films of 30 nm thickness were patterned to micro-…

Numerical models for computing the effective critical current of devices made of HTS tapes require the knowledge of the Jc(B,theta) dependence, i.e. of the way the critical current density Jc depends on the magnetic flux density B and its…

Superconductivity · Physics 2014-11-05 Francesco Grilli , Frederic Sirois , Victor M. R. Zermeno , Michal Vojenciak

A diamond anvil cell (DAC) which can generate extremely high pressure of multi-megabar is promising tool to develop a further physics such a high-transition temperature superconductivity. However, electrical transport measurements, which is…

Two-dimensional (2D) semimetals beyond graphene have been relatively unexplored in the atomically-thin limit. Here we introduce a facile growth mechanism for semimetallic WTe2 crystals, then fabricate few-layer test structures while…

Materials Science · Physics 2016-08-04 Michal J. Mleczko , Runjie , Xu , Kye Okabe , Hsueh-Hui Kuo , Ian R. Fisher , H. -S. Philip Wong , Yoshio Nishi , Eric Pop

In high-quality c-axis-oriented MgB2 thin films, we observed high critical current densities (Jc) of 16 MA/cm^2 at 15 K under self fields comparable to those of cuprate high-temperature superconductors. The extrapolated value of Jc at 5 K…

Superconductivity · Physics 2009-11-07 Hyeong-Jin Kim , W. N. Kang , Eun-Mi Choi , Mun-Seog Kim , Kijoon H. P. Kim , Sung-Ik Lee

Solders with superconducting properties around $4\,{\rm K}$ are useful in low magnetic field environments for AC current leads or in electrical and mechanical bonds. Accurate knowledge of these properties are needed in high precision…

In view of the extensive use of hexagonal boron nitride (hBN) in 2D material electronics, it becomes important to refine its dielectric characterization in terms of low-field permittivity and high-field strength and conductivity up to the…

Rare-Earth Barium Copper Oxide (REBCO) coated conductors are an attractive option for application in high field accelerator magnets due to their high critical field and the convenience of fabrication without heat treatment compared to some…

Carbon-doped magnesium diboride was fabricated from pre-reacted pure MgB2 by mechanical alloying. The sample set had excellent critical current densities Jc(8T,4.2K) ranging from 15-60 kA/cm2, depending on composition. Magneto-optical…

Superconductivity · Physics 2007-05-23 B. J. Senkowicz , A. A. Polyanskii , R. J. Mungall , E. E. Hellstrom , D. C. Larbalestier

The high energy beam transport (HEBT) line for the ISAC radioactive beam facility at TRIUMF requires an 11.8 MHz buncher. The main requirements of the buncher are to operate in cw mode with a velocity acceptance of 2.2% and an effective…

Accelerator Physics · Physics 2007-05-23 A. K. Mitra , R. L. Poirier , R. E. Laxdal

We consider the use of a dielectric-loaded structure to extract rf energy from a high current electron drive beam as a power source for a high energy two-beam accelerator. This represents an alternative technique which we show to have some…

Accelerator Physics · Physics 2009-11-06 Wei Gai , Paul Schoessow

Transport critical current (Ic) was measured for Fe-sheathed MgB2 round wires. A critical current density of 5.3 x 10^4 A/cm^2 was obtained at 32K. Strong magnetic shielding by the iron sheath was observed, resulting in a decrease in Ic by…

Superconductivity · Physics 2007-05-23 J. Horvat , X. L. Wang , S. Soltanian , S. X. Dou

We demonstrate that 3.5-MeV oxygen irradiation can markedly enhance the in-field critical current of commercial 2nd generation superconducting tapes with an exposure time of just one second per 0.8 cm2. The speed demonstrated here is now at…

MgB2 hollow wires have been produced with a new technique which uses a conventional wire manufacturing process but is applied to composite billets containing the elemental B and Mg precursors in an appropriate shape. The technique has been…

Superconductivity · Physics 2009-11-07 G. Giunchi , S. Ceresara , G. Ripamonti , A. DiZenobio , S. Rossi , S. Chiarelli , M. Spadoni , R. Wesche , P. L. Bruzzone

A high Q-factor microwave resonator in a high magnetic field could be of great use in a wide range of fields, from accelerator design to axion dark matter search. The natural choice of material for the superconducting cavity to be placed in…

Instrumentation and Detectors · Physics 2019-04-11 Danho Ahn , Ohjoon Kwon , Woohyun Chung , Wonjun Jang , Doyu Lee , Jhinhwan Lee , Sung Woo Youn , Dojun Youm , Yannis K. Semertzidis

In order to further investigate the magnetic state of the RAgAl series, the magnetization measurements on the TbAgAl compound from this series have been extended to higher fields of 12 Tesla in the temperature range 2K-300K. The electrical…

Strongly Correlated Electrons · Physics 2025-12-30 Ashwin Mohan , Radha S

Direct carbon fuel cells (DCFCs) are highly efficient power generators fueled by abundant and cheap solid carbons. However, the limited formation of triple phase boundaries (TPBs) within fuel electrodes inhibits their performance even at…

Applied Physics · Physics 2018-02-19 Wei Wu , Yunya Zhang , Dong Ding , Ting He

In this study, a low energy beam transport (LEBT) channel for the proton linac section of the Turkic Accelerator Complex (TAC) has been designed by using TRACE 2D and TRAVEL codes. The LEBT channel is located between an ion source and a…

Accelerator Physics · Physics 2012-10-23 A. Caliskan , H. F. Kisoglu , S. Sultansoy , M. Yilmaz

State of the Art Wireless Power Transfer (WPT) systems, based on conventional copper coils, are known to exhibit efficiencies well above 90% when operated in the resonantly coupled mid-range regime. Besides full system efficiency, the area-…

Applied Physics · Physics 2021-02-01 Christoph Utschick , Cem Som , Ján Šouc , Veit Große , Fedor Gömöry , Rudolf Gross