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7 papers · 1 filter
Robustness of basal-plane antiferromagnetic order and the state in single-layer iridate spin-orbit Mott insulators
S. Boseggia, R. Springell, H. C. Walker +6
The magnetic structure and electronic groundstate of the layered perovskite Ba2IrO4 have been investigated using x-ray resonant magnetic scattering (XRMS). Our results are compared…
High-energy magnetic excitations in BiSrCaCuO: Towards a unified description of the electronic and magnetic degrees of freedom in the cuprates
M. P. M. Dean, A. J. A. James, R. S. Springell +10
We investigate the high-energy magnetic excitation spectrum of the high- cuprate superconductor BiSrCaCuO (Bi-2212) using Cu edge resonant inelastic…
Bulk properties and electronic structure of PuFeAsO
T. Klimczuk, A. B. Shick, R. Springell +7
Here we present bulk property measurements and electronic structure calculations for PuFeAsO, an actinide analogue of the iron-based rare-earth superconductors RFeAsO. Magnetic sus…
Nitrogen-Functionalized Graphene Nanoflakes (GNFs:N): Tunable Photoluminescence and Electronic Structures
J. W. Chiou, Sekhar C. Ray, S. I. Peng +22
This study investigates the strong photoluminescence (PL) and X-ray excited optical luminescence observed in nitrogen-functionalized 2D graphene nanoflakes (GNFs:N), which arise fr…
Thermal stability study of nitrogen functionalities in a graphene network
Ajay Kumar, Abhijit Ganguly, Pagona Papakonstantinou
Catalyst-free vertically aligned graphene nanoflakes possessing a large amount of high density edge planes were functionalized using nitrogen species in a low energy N+ ion bombard…
Negative thermal expansion and antiferromagnetism in the actinide oxypnictide NpFeAsO
T. Klimczuk, H. C. Walker, R. Springell +12
A neptunium analogue of the LaFeAsO tetragonal layered compound has been synthesized and characterized by a variety of experimental techniques. The occurrence of long-range magneti…