activity
20082022
most citedEnhancement of superconducting transition temperature of FeSe by intercalation of a molecular spacer layer

437 citations · 1.7k across the 20 of their papers we have counts for

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Showing cond-mat.supr-conShow all

17 papers · 1 filter

cond-mat.supr-con2020★ 14 cited

$\require{mhchem}$Misfit phase $\ce{(BiSe)_{$1.10$}NbSe2}$ as the origin of superconductivity in nobium-doped bismuth selenide

Machteld E. Kamminga, Maria Batuk, Joke Hadermann +1

$\require{mhchem}$Topological superconductivity is of great contemporary interest and has been proposed in doped $\ce{Bi2Se3}$ in which electron-donating atoms such as Cu, Sr or Nb…

cond-mat.supr-con2020

Robustness of superconducting properties to transition metal substitution and impurity phases in Fe1-xVxSe

Franziska K. K. Kirschner, Daniel N. Woodruff, Matthew J. Bristow +4

We have performed transverse- and zero-field muon spin rotation/relaxation experiments, as well as magnetometry measurements, on samples of Fe1-xVxSe and their Li+NH3 intercalates…

cond-mat.supr-con2017★ 13 cited

Coexistence of magnetism and superconductivity in separate layers of the iron-based superconductor Li_{1-x}Fe_{x}(OH)Fe_{1-y}Se

C. V. Topping, F. K. K. Kirschner, S. J. Blundell +5

The magnetic properties attributed to the hydroxide layer of Li1-xFex(OH)Fe1-ySe have been elucidated by the study of superconducting and nonsuperconducting members of this family.…

cond-mat.supr-con2016★ 22 cited

Robustness of superconductivity to competing magnetic phases in tetragonal FeS

Franziska K. K. Kirschner, Franz Lang, Craig V. Topping +6

We have determined the superconducting and magnetic properties of a hydrothermally synthesized powder sample of tetragonal FeS using muon spin rotation (μSR). The superconducting p…

cond-mat.supr-con2015★ 15 cited

Intercalation effect on hyperfine parameters of Fe in FeSe superconductor with Tc = 42 K

Sergii I Shylin, Vadim Ksenofontov, Stefan J Sedlmaier +5

57Fe-Mossbauer spectra of superconducting beta-FeSe, the Li/NH3 intercalate product and a subsequent sample of this intercalate treated with moist He gas have been measured in temp…

cond-mat.supr-con2015★ 103 cited

Strong spin fluctuations in -FeSe observed by neutron spectroscopy

M. C. Rahn, R. A. Ewings, S. J. Sedlmaier +2

We have performed powder inelastic neutron scattering measurements on the unconventional superconductor -FeSe (). The spectra reveal highly dispe…

cond-mat.supr-con2014★ 118 cited

Soft chemical control of superconductivity in lithium iron selenide hydroxides Li1-xFex(OH)Fe1-ySe

Hualei Sun, Daniel N. Woodruff, Simon J. Cassidy +13

Hydrothermal synthesis is described of layered lithium iron selenide hydroxides Li1-xFex(OH)Fe1-ySe (x ~ 0.2; 0.02 < y < 0.15) with a wide range of iron site vacancy concentrations…

cond-mat.supr-con2013★ 21 cited

Spin fluctuations away from (pi,0) in the superconducting phase of molecular-intercalated FeSe

A. E. Taylor, S. J. Sedlmaier, S. J. Cassidy +5

Magnetic fluctuations in the molecular-intercalated FeSe superconductor Li{x}(ND2){y}(ND3){1-y}Fe2Se2 (Tc = 43K) have been measured by inelastic neutron scattering from a powder sa…

cond-mat.supr-con2013★ 4 cited

Absence of strong magnetic fluctuations in the iron phosphide superconductors LaFePO and Sr2ScO3FeP

A. E. Taylor, R. A. Ewings, T. G. Perring +4

We report neutron inelastic scattering measurements on polycrystalline LaFePO and Sr2ScO3FeP, two members of the iron phosphide families of superconductors. No evidence is found fo…

cond-mat.supr-con2012★ 437 cited

Enhancement of superconducting transition temperature of FeSe by intercalation of a molecular spacer layer

Matthew Burrard-Lucas, David G. Free, Stefan J. Sedlmaier +8

The recent discovery of high temperature superconductivity in a layered iron arsenide has led to an intensive search to optimize the superconducting properties of iron-based superc…

cond-mat.supr-con2011★ 48 cited

The gradual destruction of magnetism in the superconducting family NaFe(1-x)CoxAs

J. D. Wright, T. Lancaster, I. Franke +10

The interplay and coexistence of superconducting, magnetic and structural order parameters in NaFe{1-x}Co{x}As has been studied using SQUID magnetometry, muon-spin rotation and syn…

cond-mat.supr-con2009★ 122 cited

Control via electron count of the competition between magnetism and superconductivity in cobalt and nickel doped NaFeAs

Dinah R. Parker, Matthew J. P. Smith, Tom Lancaster +7

Using a combination of neutron, muon and synchrotron techniques we show how the magnetic state in NaFeAs can be tuned into superconductivity by replacing Fe by either Co or Ni. Ele…

cond-mat.supr-con2009★ 22 cited

The electronic structure of LiFeAs and NaFeAs probed by resonant inelastic x-ray scattering spectra

E. Z. Kurmaev, J. McLeod, N. A. Skorikov +5

Results of resonant inelastic X-ray scattering (RIXS) measurements at Fe L-edges and electronic structure calculations of LiFeAs and NaFeAs are presented. Both experiment and theor…

cond-mat.supr-con2008★ 41 cited

Heat capacity measurements on FeAs-based compounds: a thermodynamic probe of electronic and magnetic states

P. J. Baker, S. R. Giblin, F. L. Pratt +7

We report heat capacity measurements of the pnictide materials SmFeAsOF, NdFeAsO, LaFeAsOF and LiFeAs. For SmFeAsOF, with x close to 0.1, we use…

cond-mat.supr-con2008★ 47 cited

Enhancement of Superfluid Stiffness, Suppression of Superconducting T_c and Field-induced Magnetism in the Pnictide Superconductor LiFeAs

F. L. Pratt, P. J. Baker, S. J. Blundell +6

Transverse-field muon-spin rotation measurements performed on two samples of LiFeAs demonstrate that the superfluid stiffness of the superconducting condensate in relation to its s…

cond-mat.supr-con2008★ 223 cited

Structure, antiferromagnetism and superconductivity of the layered iron arsenide NaFeAs

Dinah R. Parker, Michael J. Pitcher, Peter J Baker +4

A new layered iron arsenide NaFeAs isostructural with the superconducting lithium analogue, displays evidence for the coexistence of superconductivity and magnetic ordering.

cond-mat.supr-con2008★ 307 cited

Structure and superconductivity of LiFeAs

Michael J. Pitcher, Dinah R. Parker, Paul Adamson +3

The lithium ions in Lithium iron arsenide phases with compositions close to LiFeAs have been located using powder neutron diffraction. These phases exhibit superconductivity at tem…