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Unravelling the Nature of Spin Excitations Disentangled from Charge Contributions in a Doped Cuprate Superconductor
Wenliang Zhang, Cliò Efthimia Agrapidis, Yi Tseng +7
The nature of the spin excitations in superconducting cuprates is a key question toward a unified understanding of the cuprate physics from long-range antiferromagnetism to superco…
Uniaxial Pressure Induced Stripe Order Rotation in LaSrCuO
Qisi Wang, K. von Arx, D. G. Mazzone +19
Static stripe order is detrimental to superconductivity. Yet, it has been proposed that transverse stripe fluctuations may enhance the inter-stripe Josephson coupling and thus prom…
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…
Dispersionless orbital excitations in (Li,Fe)OHFeSe superconductors
Qian Xiao, Wenliang Zhang, Teguh Citra Asmara +9
The superconducting critical temperature of intercalated iron-selenide superconductor (Li,Fe)OHFeSe (FeSe11111) can be increased to 42 K from 8 K of bulk FeSe. It…
Spin-excitation anisotropy in the nematic state of detwinned FeSe
Xingye Lu, Wenliang Zhang, Yi Tseng +11
The origin of the electronic nematicity in FeSe is one of the most important unresolved puzzles in the study of iron-based superconductors. In both spin- and orbital-nematic models…
Fluctuating magnetism of Co- and Cu-doped NaFeAs
Jonathan Pelliciari, Kenji Ishi, Lingyi Xing +3
We report an x-ray emission spectroscopy (XES) study of the local fluctuating magnetic moment () in and . In Na…