activity
20242026
most citedThe nontrivial effects of annealing on superconducting properties of Nb single crystals

5 citations · 7 across the 7 of their papers we have counts for

collaborators

8 papers

cond-mat.supr-con2026

Synthesis of Bulk Superconducting LiNbO Crystals through CaH Reduction

Ryan Paxson, Stephanie J. Hong, Bicky S. Moirangthem +17

We have synthesized layered superconducting LiNbO crystals through a bulk phase transformation from LiNbO single crystals via CaH reduction. As the Nb valence is reduce…

cond-mat.supr-con2026

Magnetic flux distribution, quasiparticle spectroscopy, and quality factors in Nb films for superconducting qubits

Amlan Datta, Bicky S. Moirangthem, Kamal R. Joshi +6

Niobium is a practical material platform for superconducting microwave circuits; however, device-level performance can vary significantly depending on film growth and processing co…

cond-mat.supr-con2026

Quasiparticle spectroscopy in tantalum films with different Ta/sapphire interfaces

Bicky S. Moirangthem, Kamal R. Joshi, Anthony P. Mcfadden +8

One of the crucial aspects of current research in quantum information science is the identification and control of loss mechanisms in superconducting circuits. Although microwave m…

cond-mat.supr-con2026

Magneto-optical study of Nb thin films for superconducting qubits

Amlan Datta, Kamal R. Joshi, Sunil Ghimire +7

Among the recognized sources of decoherence in superconducting qubits, the spatial inhomogeneity of the superconducting state and the possible presence of magnetic-flux vortices re…

cond-mat.supr-con2026

Effect of metal encapsulation on bulk superconducting properties of niobium thin films used in qubits

Amlan Datta, Kamal R. Joshi, Sunil Ghimire +18

Niobium metal occupies nearly 100\% of the volume of a typical 2D transmon device. While the aluminum Josephson junction is of utmost importance, maintaining quantum coherence acro…

quant-ph2025

Identifying Materials-Level Sources of Performance Variation in Superconducting Transmon Qubits

Akshay A. Murthy, Mustafa Bal, Michael J. Bedzyk +46

The Superconducting Materials and Systems (SQMS) Center, a DOE National Quantum Information Science Research Center, has conducted a comprehensive and coordinated study using super…

cond-mat.supr-con2024★ 5 cited

The nontrivial effects of annealing on superconducting properties of Nb single crystals

Amlan Datta, Kamal R. Joshi, Giulia Berti +9

The effect of annealing on the superconducting properties of niobium single crystals cut from the same master boule was studied by local and global magnetic measurements, as well a…

cond-mat.supr-con2024★ 2 cited

Creep-enhanced vortex pinning revealed through nonmonotonic relaxation of the Campbell length

Sunil Ghimire, Filippo Gaggioli, Kamal R. Joshi +9

We study the effects of flux creep on the linear AC response of the vortex lattice in single crystals CaIrSn by measuring the Campbell penetration depth, $λ_{\rm \sc…