activity
20082025
most citedVacancy defect positron lifetimes in strontium titanate

65 citations · 186 across the 12 of their papers we have counts for

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Showing cond-mat.supr-conShow all

9 papers · 1 filter

cond-mat.supr-con2025

Drastic field-induced resistivity upturns as signatures of unconventional magnetism in superconducting iron chalcogenides

Z. Zajicek, I. Paulescu, P. Reiss +5

Electronic scattering is a powerful tool to identify underlying changes in electronic behavior and incipient electronic and magnetic orders. The nematic and magnetic phases are str…

cond-mat.supr-con2022★ 7 cited

Robust superconductivity and fragile magnetism induced by the strong Cu impurity scattering in the high-pressure phase of FeSe

Z. Zajicek, S. J. Singh, A. I. Coldea

Superconductivity in FeSe is strongly enhanced under applied pressure and it is proposed to emerge from anomalously coupled structural and magnetic phases. Small impurities inside…

cond-mat.supr-con2022★ 21 cited

The drastic effect of the impurity scattering on the electronic and superconducting properties of Cu-doped FeSe

Z. Zajicek, S. J. Singh, H. Jones +6

Non-magnetic impurities in iron-based superconductors can provide an important tool to understand the pair symmetry and they can influence significantly the transport and the super…

cond-mat.supr-con2016★ 8 cited

Role of magnetic dopants in the phase diagram of Sm1111 pnictides: The Mn case

G. Lamura, T. Shiroka, S. Bordignon +12

The deliberate insertion of magnetic Mn dopants in the Fe sites of the optimally-doped SmFeAsO0.88-F0.12 iron-based superconductor can modify in a controlled way its electronic pro…

cond-mat.supr-con2009

Strong electron-electron correlation and weak localization in CeO_{0.9}F_{0.1}Fe_{1-x}Co_xAs

S. J. Singh, J. Prakash, S. Patnaik +1

Electron-doping of the semimetal (CeOFeAs) by either fluorine (max Tc ~ 43 K)or cobalt (max Tc ~ 11 K) leads to superconductivity. Here we show the effect of transition metal (Co)…

cond-mat.supr-con2009★ 25 cited

Upper critical field, superconducting energy gaps, and Seebeck coefficient in La0.8Th0.2OFeAs

J. Prakash, S. J. Singh, S. Patnaik +1

We report the synthesis and characterization of a new electron-doped La-oxypnictide superconductor by partial substitution of lanthanum by thorium. The superconducting transition t…