activity
19992023
most citedQuantum magnetism in the paratacamite family: towards an ideal kagome lattice

470 citations · 3.1k across the 71 of their papers we have counts for

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38 papers · 1 filter

cond-mat.supr-con2023★ 12 cited

Designing the stripe-ordered cuprate phase diagram through uniaxial-stress

Z. Guguchia, D. Das, G. Simutis +23

The ability to efficiently control charge and spin in the cuprate high-temperature superconductors is crucial for fundamental research and underpins technological development. Here…

cond-mat.supr-con2022★ 160 cited

Tunable nodal kagome superconductivity in charge ordered RbV3Sb5

Z. Guguchia, C. Mielke, D. Das +18

Unconventional superconductors often feature competing orders, small superfluid density, and nodal electronic pairing. While unusual superconductivity has been proposed in the kago…

cond-mat.supr-con2020

Using uniaxial stress to probe the relationship between competing superconducting states in a cuprate with spin-stripe order

Z. Guguchia, D. Das, C. N. Wang +17

We report muon spin rotation and magnetic susceptibility experiments on in-plane stress effects on the static spin-stripe order and superconductivity in the cuprate system La2-xBax…

cond-mat.supr-con2019★ 11 cited

Self-consistent two-gap approach in studying multi-band superconductivity in NdFeAsOF

Ritu Gupta, Alexander Maisuradze, Nikolai D. Zhigadlo +3

High-quality single crystals of NdFeAsOF (the transition temperature ~K) were studied in zero-field (ZF) and transverse-field (TF) muon-spi…

cond-mat.supr-con2019★ 12 cited

Structural phases of elemental Gallium: universal relations in type-I superconductors

Rustem Khasanov, Hubertus Luetkens, Alex Amato +1

The temperature dependent measurements of the thermodynamic critical field and the specific heat for the pressure stabilized Ga-II phase of elemental Gallium are presented. The dis…

cond-mat.supr-con2019★ 23 cited

Muon spin rotation study of type-I superconductivity: elemental Sn

Richard Karl, Florence Burri, Alex Amato +5

The application of the muon-spin rotation/relaxation (SR) technique for studying type-I superconductivity is discussed. In the intermediate state, i.e. when a type-I superconduc…

cond-mat.supr-con2019★ 41 cited

Nodeless Superconductivity and its Evolution with Pressure in the Layered Dirac Semimetal 2M-WS_2

Z. Guguchia, D. Gawryluk, M. Brzezinska +9

The interaction between superconductivity and band topology can lead to various unconventional superconducting (SC) states, and represents a new frontier in condensed matter physic…

cond-mat.supr-con2019★ 19 cited

On the superconducting nature of the Bi-II phase of elemental Bismuth

Rustem Khasanov, Miloš M. Radonjić, Hubertus Luetkens +7

The superconductivity in the Bi-II phase of elemental Bismuth (transition temperature K at pressure GPa) was studied experimentally by means of…

cond-mat.supr-con2019★ 16 cited

Anisotropy induced vortex lattice rearrangement in CaKFeAs

Rustem Khasanov, William R. Meier, Sergey L. Bud'ko +3

The magnetic penetration depth anisotropy ( and are the in-plane and the out-of-plane components of the magnetic penetration depth) in a CaKFe$_4…

cond-mat.supr-con2018★ 23 cited

Evidence of nodal gap structure in the basal plane of the FeSe superconductor

Pabitra K. Biswas, Andreas Kreisel, Qisi Wang +7

Identifying the symmetry of the wave function describing the Cooper pairs is pivotal in understanding the origin of high-temperature superconductivity in iron-based superconductors…

cond-mat.supr-con2018★ 19 cited

Magnetic tricritical point and nematicity in FeSe under pressure

Rustem Khasanov, Rafael M. Fernandes, Gediminas Simutis +7

Magnetism induced by external pressure () was studied in a FeSe crystal sample by means of muon-spin rotation. The magnetic transition changes from second-order to first-order f…

cond-mat.supr-con2018★ 25 cited

In-plane magnetic penetration depth of superconducting CaKFeAs

Rustem Khasanov, William R. Meier, Yun Wu +7

The temperature dependence of the in-plane magnetic penetration depth () in an extensively characterized sample of superconducting CaKFeAs ( K) w…

cond-mat.supr-con2018★ 17 cited

Superconductivity of Bi-III phase of elemental Bismuth: insights from Muon-Spin Rotation and Density Functional Theory

Rustem Khasanov, Hubertus Luetkens, Elvezio Morenzoni +5

Using muon-spin rotation the pressure-induced superconductivity in the Bi-III phase of elemental Bismuth (transition temperature K) was investigated. The Ginz…

cond-mat.supr-con2017

Macroscopic phase separation of superconductivity and ferromagnetism in Sr0.5Ce0.5FBiS2-xSex revealed by muSR

A. M. Nikitin, V. Grinenko, R. Sarkar +7

The compound SrCeFBiS belongs to the intensively studied family of layered BiS superconductors. It attracts special attention because superconductivity at…

cond-mat.supr-con2017★ 16 cited

Complementary response of static spin-stripe order and superconductivity to non-magnetic impurities in cuprates

Z. Guguchia, B. Roessli, R. Khasanov +7

We report muon-spin rotation and neutron-scattering experiments on non-magnetic Zn impurity effects on the static spin-stripe order and superconductivity of the La214 cuprates. Rem…

cond-mat.supr-con2016★ 23 cited

Pressure induced magnetic order in FeSe

Rustem Khasanov, Zurab Guguchia, Alex Amato +4

The magnetic order induced by the pressure was studied in single crystalline FeSe by means of muon-spin rotation (SR) technique. By following the evolution of the oscillatory pa…

cond-mat.supr-con2016★ 34 cited

Fully gapped superconductivity in the topological superconductor beta-PdBi2

P. K. Biswas, D. G. Mazzone, R. Sibille +8

The recent discovery of the topologically protected surface states in the beta-phase of PdBi2 has reignited the research interest in this class of superconductors. Here, we show re…

cond-mat.supr-con2016★ 35 cited

Proximity induced superconductivity within the insulating (LiFe)OH layers in (LiFe)OHFeSe

Rustem Khasanov, Huaxue Zhou, Alex Amato +5

The role played by the insulating intermediate (LiFe)OH layer on magnetic and superconducting properties of (LiFe)OHFeSe was studied by…

cond-mat.supr-con2016★ 39 cited

Coexistence of low moment magnetism and superconductivity in tetragonal FeS and suppression of under pressure

S. Holenstein, U. Pachmayr, Z. Guguchia +8

We report local probe (SR) measurements on the recently discovered tetragonal FeS superconductor which has been predicted to be electronically very similar to superconducting Fe…

cond-mat.supr-con2015★ 47 cited

Direct evidence for the emergence of a pressure induced nodal superconducting gap in the iron-based superconductor Ba_0.65Rb_0.35Fe_2As_2

Zurab Guguchia, Alex Amato, Jian Kang +10

Identifying the superconducting (SC) gap structure of the iron-based high-temperature superconductors (Fe-HTS's) remains a key issue for the understanding of superconductivity in t…

cond-mat.supr-con2015

Microscopic coexistence of superconductivity and magnetism in Ca1-xNaxFe2As2

Philipp Materne, Sirko Kamusella, Rajib Sarkar +9

We present a detailed investigation of the magnetic and superconducting properties of Ca1-xNaxFe2As2 single crystals with x = 0.00, 0.35, 0.50, and 0.67 by means of the local probe…

cond-mat.supr-con2014★ 8 cited

Sn-NMR investigations on superconducting CaIrSn: Evidence for multigap superconductivity

R. Sarkar, F. Brückner, M. Günther +7

We report bulk superconductivity (SC) in CaIrSn by means of Sn nuclear magnetic resonance (NMR) experiments. Two classical signatures of BCS superconductivit…

cond-mat.supr-con2013★ 8 cited

Evidence for Cooper Pair Diffraction on the Vortex Lattice of Superconducting Niobium

A. Maisuradze, A. Yaouanc, R. Khasanov +6

We investigated the Abrikosov vortex lattice (VL) of a pure Niobium single crystal with the muon spin rotation (μSR) technique. Analysis of the μSR data in the framework of the BCS…

cond-mat.supr-con2012★ 5 cited

Structural and electronic phase diagrams of CeFeAsO1-xFx and SmFeAsO1-xFx

Hemke Maeter, Jorge Enrique Hamann Borrero, Til Goltz +17

We have studied the structural and electronic phase diagrams of CeFeAsO1-xFx and SmFeAsO1-xFx by a detailed analysis of muon spin relaxation experiments, synchrotron X-ray diffract…