318 citations · 7.3k across the 177 of their papers we have counts for
72 papers · 1 filter
Charge order above room-temperature in a prototypical kagome superconductor La(RuFe)Si
I. Plokhikh, C. Mielke, H. Nakamura +22
The kagome lattice is an intriguing and rich platform for discovering, tuning and understanding the diverse phases of quantum matter, which is a necessary premise for utilizing qua…
Evolution of plasmon excitations across the phase diagram of the cuprate superconductor LaSrCuO
M. Hepting, T. D. Boyko, V. Zimmermann +19
We use resonant inelastic x-ray scattering (RIXS) at the O - and Cu -edges to investigate the doping- and temperature dependence of low-energy plasmon excitations in La$_{2-x…
Fully-gapped superconductivity and topological aspects of the noncentrosymmetric TaReSi superconductor
T. Shang, J. Z. Zhao, Lun-Hui Hu +11
We report a study of the noncentrosymmetric TaReSi superconductor by means of muon-spin rotation and relaxation (SR) technique, complemented by electronic band-structure calcula…
Evidence of unconventional pairing in the quasi two-dimensional CuIrTe superconductor
T. Shang, Y. Chen, W. Xie +13
The CuIrRuTe superconductors (with a around 2.8 K) can host charge-density waves, whose onset and interplay with superconductivity are not well known at a mic…
Fate of charge order in overdoped La-based cuprates
K. von Arx, Qisi Wang, S. Mustafi +18
In high-temperature cuprate superconductors, stripe order refers broadly to a coupled spin and charge modulation with a commensuration of eight and four lattice units, respectively…
Spin-triplet superconductivity in Weyl nodal-line semimetals
Tian Shang, Sudeep K. Ghosh, Michael Smidman +14
Topological semimetals are three dimensional materials with symmetry-protected massless bulk excitations. As a special case, Weyl nodal-line semimetals are realized in materials ei…
Crossover of the high-energy spin fluctuations from collective triplons to localized magnetic excitations in doped Sr14-xCaxCu24O41 cuprate ladders
Y. Tseng, J. Thomas, W. Zhang +13
We studied the magnetic excitations in the quasi-one-dimensional (q-1D) ladder subsystem of Sr_(14-x) Ca_x Cu_24 O_41(SCCO) using Cu L_3-edge resonant inelastic X-ray scattering (R…
Nodeless superconductivity in the centro- and noncentrosymmetric rhenium-boron superconductors
T. Shang, W. Xie, J. Z. Zhao +7
We report a comprehensive study of the centrosymmetric ReB and noncentrosymmetric ReB superconductors. At a macroscopic level, their bulk superconductivity (SC), with $…
Universal spin-glass behaviour in bulk LaNiO2, PrNiO2 and NdNiO2
Hai Lin, Dariusz Jakub Gawryluk, Yannick Maximilian Klein +4
Motivated by the recent discovery of superconductivity in infinite-layer nickelate thin films, we report on a synthesis and magnetization study on bulk samples of the parent compou…
Multigap superconductivity in the MoPB boron-phosphorus compound
T. Shang, W. Xie, D. J. Gawryluk +7
The tetragonal MoPB compound was recently reported to show superconductivity with a critical temperature up to 9.2 K. In search of evidence for multiple superconducting gap…
Superconductivity and topological aspects of the rock-salt carbides NbC and TaC
T. Shang, J. Z. Zhao, D. J. Gawryluk +4
Superconducting materials with a nontrivial band structure are potential candidates for topological superconductivity. Here, by combining muon-spin rotation and relaxation (SR)…
Nodeless superconductivity and preserved time-reversal symmetry in the noncentrosymmetric Mo3P superconductor
T. Shang, J. Philippe, J. A. T. Verezhak +10
We report a comprehensive study of the noncentrosymmetric superconductor MoP. Its bulk superconductivity, with K, was characterized via electrical resistivity, magn…
-vestigial nematic order due to superconducting fluctuations in the doped topological insulator NbBiSe and CuBiSe
Chang-woo Cho, Junying Shen, Jian Lyu +10
A state of matter with a multi-component order parameter can give rise to vestigial order. In the vestigial phase, the primary order is only partially melted, leaving a remaining s…
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…
Time-reversal symmetry breaking in the noncentrosymmetric ZrIr superconductor
T. Shang, S. K. Ghosh, J. Z. Zhao +8
We report the discovery of ZrIr as a new type of unconventional noncentrosymmetric superconductor (with K), here investigated mostly via muon-spin rotation/relaxati…
Time-reversal symmetry breaking in Re-based superconductors
T. Shang, M. Smidman, S. K. Ghosh +15
To trace the origin of time-reversal symmetry breaking (TRSB) in Re-based superconductors, we performed comparative muon-spin rotation/relaxation (SR) studies of superconducting…
Cooling a polaronic liquid: Phase mixture and pseudogap-like spectra in superconducting
M. Naamneh, M. Yao, J. Jandke +17
Many complex electronic systems exhibit so-called pseudogaps, which are poorly-understood suppression of low-energy spectral intensity in the absence of an obvious gap-inducing sym…
High-pressure polymorphism of BaFe2Se3
V. Svitlyk, G. Garbarino, A. D. Rosa +5
BaFe2Se3 is a potential superconductor material exhibiting transition at 11 K and ambient pressure. Here we extended the structural and performed electrical resistivity measurement…
Formation of single-phase disordered CsxFe2-ySe2 at high pressure
V. Svitlyk, E. Pomjakushina, A. Krzton-Maziopa +2
A single-phase high pressure (HP) modification of CsxFe2-ySe2 was synthesized at 11.8 GPa at ambient temperature. Structurally this polymorph is similar to the minor low pressure (…
Superconducting properties of Cu intercalated BiSe studied by Muon Spin Spectroscopy
Jonas A. Krieger, Amit Kanigel, Amit Riback +7
We present muon spin rotation measurements on superconducting Cu intercalated BiSe, which was suggested as a realization of a topological superconductor. We observe a clear…
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…
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…
Phase separation in iron chalcogenide superconductor Rb0.8+xFe1.6+ySe2 as seen by Raman light scattering and band structure calculations
Yu. Pashkevich, V. Gnezdilov, P. Lemmens +7
We report Raman light scattering in the phase separated superconducting single crystal Rb0.77Fe1.61Se2 with Tc = 32 K. The spectra have been measured in a wide temperature range 3K…
Cooperative coupling of static magnetism and bulk superconductivity in the stripe phase of La_2-xBa_xCuO_4: Pressure- and doping-dependent studies
Z. Guguchia, R. Khasanov, A. Shengelaya +5
Static spin-stripe order and superconductivity were systematically studied in La_2-xBa_xCuO_4 (0.11 - 0.17) at ambient pressure by means of magnetization and muSR experiments. We f…