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Emergence of Fermi pockets in an excitonic CDW melted novel superconductor
D. Qian, D. Hsieh, L. Wray +5
A superconducting (SC) state (Tc ~ 4.2K) has very recently been observed upon successful doping of the CDW ordered triangular lattice TiSe, with copper. Using high resolution p…
Complete d-Band Dispersion and the Mobile Fermion Scale in NaxCoO2
D. Qian, L. Wray, D. Hsieh +6
We utilize fine-tuned polarization selection coupled with excitation-energy variation of photoelectron signal to image the \textit{complete d}-band dispersion relation in sodium co…
Optical Properties and Magnetic Field-Induced Phase Transitions in the Ferroelectric State of NiVO
R. C. Rai, J. Cao, S. Brown +7
We use a combination of optical spectra, first principles calculations, and energy dependent magneto-optical measurements to elucidate the electronic structure and to study the pha…
Ferromagnetism below 10 K in Mn doped BiTe
J. W. G. Bos, M. Lee, E. Morosan +4
Ferromagnetism is observed below 10 K in [Bi0.75Te0.125Mn0.125]Te. This material has the BiTe structure, which is made from the stacking of two Te-Bi-Te-Bi-Te blocks and one Bi-Bi…
Complex magnetic order in the kagome staircase compound Co3V2O8
Y. Chen, J. W. Lynn, Q. Huang +9
Co3V2O8 (CVO) has a geometrically frustrated magnetic lattice, a Kagome staircase. The crystal structure consists of two inequivalent Co sites, one-dimensional chains of Co(2) spin…
Low-lying quasiparticle states and hidden collective charge instabilities in parent cobaltate superconductors (NaxCoO2)
D. Qian, D. Hsieh, L. Wray +7
We report a state-of-the-art photoemission (ARPES) study of high quality single crystals of the NaxCoO2 series focusing on the fine details of the low-energy states. The Fermi velo…