352 citations · 910 across the 18 of their papers we have counts for
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Quantum critical behavior of cuprate superconductors observed by inelastic X-ray scattering
H. Y. Huang, C. Y. Mou, A. Singh +7
Progress toward a complete understanding of cuprate superconductors has been hindered by their intricate phase diagram, potentially linked to a quantum critical point (QCP). Howeve…
Non-reciprocal circular dichroism of axial phonons coupled to ferro-rotational order
H. Y. Huang, G. Channagowdra, D. Banerjee +10
Circular dichroism (CD) in X-ray absorption, defined as the difference in absorption between opposite circular polarizations, is fundamentally enabled by the breaking of time-rever…
Signatures of bi-altermagnetism revealed by sublattice-specific circular dichroism in resonant inelastic X-ray scattering
G. Channagowdra, A. Singh, H. Y. Huang +9
An altermagnet is a recently identified class of magnets that exhibit a zero net magnetic moment but break symmetry under the combined operations of parity and time reversal. It ty…
Bimagnon dispersion of La2CuO4 probed by resonant inelastic X-ray scattering
A. Singh, H. Y. Huang, K. Tsutsui +6
We report on the study of the magnetic excitations of Mott insulator La2CuO4 by using resonant inelastic x-ray scattering (RIXS) and cluster calculations within the framework of ex…
Exciton dynamics uncovering electron fractionalization in superconducting cuprates
A. Singh, H. Y. Huang, J. D. Xie +6
Electron quasiparticles play a crucial role in simplifying the description of many-body physics in solids with surprising success. Conventional Landau's Fermi-liquid and quasiparti…
Evolution of valence-specific spin states and local distortions in LaSrCoO
J. Okamoto, A. Chainani, Z. Y. Chen +7
We present X-ray spectroscopic evidence for the evolution of valence-specific spin states and tetragonal distortions in single-layer cobaltates. Measurements of Co -edge reson…
Jahn-Teller distortion driven magnetic polarons in magnetite
H. Y. Huang, Z. Y. Chen, R. -P. Wang +11
The first known magnetic mineral, magnetite (FeO), has unusual properties which have fascinated mankind for centuries; it undergoes the Verwey transition at $\s…
Microscopic examinations of Co valences and spin states in electron-doped LaCoO
Keisuke Tomiyasu, Syun-Ichi Koyama, Masanori Watahiki +12
We studied the Co valences and spin states in electron-doped LaCoTeO by measuring x-ray absorption spectra and electron spin resonance. The low-temperature insula…
Observation of magnetically hard grain boundaries in double-perovskite SrFeMoO
Y. Takahashi, V. K. Verma, G. Shibata +12
Unusual low temperature magneto-resistance (MR) of ferromagnetic SrFeMoO polycrystals has been attributed to magnetically hard grain boundaries which act as spin valves…
Exchange Splitting and Charge Carrier Spin Polarization in EuO
P. G. Steeneken, L. H. Tjeng, I. Elfimov +4
High quality thin films of the ferromagnetic semiconductor EuO have been prepared and were studied using a new form of spin-resolved spectroscopy. We observed large changes in the…