activity
20102025
most citedFlux pinning in (1111) iron-pnictide superconducting crystals

123 citations · 232 across the 12 of their papers we have counts for

collaborators

12 papers

cond-mat.supr-con2025★ 8 cited

Observation of Anomalous Thermal Hall Effect in a Kagome Superconductor

Hiroki Yoshida, Hikaru Takeda, Jian Yan +8

Broken time-reversal symmetry (TRS) in superconductors can induce not only spontaneous magnetization by the finite angular momentum of Cooper pairs, but also anomalous thermal Hall…

cond-mat.supr-con2025★ 5 cited

Disorder-induced suppression of superconductivity in infinite-layer nickelates

Abhishek Ranna, Romain Grasset, Martin Gonzalez +10

The pairing symmetry of superconducting infinite-layer nickelates is a fundamental yet experimentally challenging question. We employ high-energy electron irradiation to induce dis…

cond-mat.supr-con2024

Single-gap Isotropic wave Superconductivity in Single Crystals

Sunil Ghimire, Kamal R. Joshi, Elizabeth H. Krenkel +5

London, , and Campbell, , penetration depths were measured in single crystals of a topological superconductor candidate . At low temperatures, $λ…

cond-mat.str-el2024★ 3 cited

Enhancement of the Curie temperature in single crystalline ferromagnetic LaCrGe by electron irradiation-induced disorder

E. H. Krenkel, M. A. Tanatar, M. Konczykowski +5

LaCrGe has attracted attention as a potential candidate for studies of quantum phase transitions in a ferromagnetic material. The application of pressure avoids a quantum criti…

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…

cond-mat.supr-con2024

Controllable suppression of the unconventional superconductivity in bulk and thin-film SrRuO via high-energy electron irradiation

Jacob P. Ruf, Hilary M. L. Noad, Romain Grasset +11

In bulk SrRuO, the strong sensitivity of the superconducting transition temperature to nonmagnetic impurities provides robust evidence for a superconduct…

cond-mat.supr-con2023★ 9 cited

Electron irradiation reveals robust fully gapped superconductivity in LaNiGa

S. Ghimire, K. R. Joshi, E. H. Krenkel +8

The effects of 2.5 MeV electron irradiation were studied in the superconducting phase of single crystals of LaNiGa, using measurements of electrical transport and radio-frequen…

cond-mat.str-el2019★ 8 cited

Effect of quenched disorder on a quantum spin liquid state of triangular-lattice antiferromagnet 1T-TaS

H. Murayama, Y. Sato, T. Taniguchi +12

A quantum spin liquid (QSL) is an exotic state of matter characterized by quantum entanglement and the absence of any broken symmetry. A long-standing open problem, which is a key…

cond-mat.supr-con2018★ 10 cited

Competition between orthorhombic and re-entrant tetragonal phases in underdoped BaKFeAs probed by the response to controlled disorder

E. I. Timmons, M. A. Tanatar, K. Willa +8

Low-temperature (22~K) irradiation with 2.5~MeV electrons was used to study the competition between stripe and tetragonal antiferromagnetic phases which exi…

cond-mat.supr-con2012★ 41 cited

Anisotropy of strong pinning in multi-band superconductors

Cornelis Jacominus van der Beek, Marcin Konczykowski, Ruslan Prozorov

The field-angular dependence and anisotropy of the critical current density in iron-based superconductors is evaluated using a phenomenological approach featuring distinct anisotro…

cond-mat.supr-con2011★ 23 cited

Anisotropy of the coherence length from critical currents in the stoichiometric superconductor LiFeAs

M. Kończykowski, C. J. van der Beek, M. A. Tanatar +4

Miniature Hall-probe arrays were used to measure the critical current densities for the three main directions of vortex motion in the stoichiometric LiFeAs superconductor. These co…

cond-mat.supr-con2010★ 123 cited

Flux pinning in (1111) iron-pnictide superconducting crystals

C. J. van der Beek, G. Rizza, M. Konczykowski +14

Local magnetic measurements are used to quantitatively characterize heterogeneity and flux line pinning in PrFeAsO_1-y and NdFeAs(O,F) superconducting single crystals. In spite of…