125 citations · 299 across the 6 of their papers we have counts for
6 papers
Ta, Ti and Hf effects on NbSn high-field performance: temperature-dependent dopant occupancy and failure of Kramer extrapolation
Chiara Tarantini, Shreyas Balachandran, Steve M Heald +5
The increasing demand for improving the high-field (16-22 T) performance of NbSn conductors requires a better understanding of the properties of modern wires much closer to irr…
Beneficial influence of Hf and Zr additions to Nb4at.%Ta on the vortex pinning of NbSn with and without an O source
Shreyas Balachandran, Chiara Tarantini, Peter J. Lee +5
Here we show that addition of Hf to Nb4Ta can significantly improve the high field performance of NbSn, making it suitable for dipole magnets for Future Circular Collider (FC…
Evidence from EXAFS for Different Ta/Ti Site Occupancy in High Critical Current Density NbSn Superconductor Wires
Steve M. Heald, Chiara Tarantini, Peter J. Lee +4
To meet critical current density, J, targets for the Future Circular Collider (FCC), the planned replacement for the Large Hadron Collider (LHC), the high field performance of…
Effect of Low Temperature Baking in Nitrogen on the Performance of a Niobium Superconducting Radio Frequency Cavity
Pashupati Dhakal, Santosh Chetri, Shreyas Balachandran +2
We report the rf performance of a single-cell superconducting radiofrequency cavity after low temperature baking in a nitrogen environment. A significant increase in quality factor…
Evidence that the upper critical field of Nb3Sn is independent of whether it is cubic or tetragonal
Jian Zhou, Younjung Jo, Zu Hawn Sung +3
Although 2011 marks the 50th anniversary of Nb3Sn as the first high field superconductor, real understanding of its upper critical field behavior μ0Hc2 is incomplete. Here we show…
Evidence for two distinct scales of current flow in polycrystalline Sm and Nd iron oxypnictides
A. Yamamoto, A. A. Polyanskii, J. Jiang +13
Early studies have found quasi-reversible magnetization curves in polycrystalline bulk rare-earth iron oxypnictides that suggest either wide-spread obstacles to intergranular curre…