116 citations · 1.6k across the 79 of their papers we have counts for
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Competing Incommensurate Spin Fluctuations and Magnetic Excitations in Infinite-Layer Nickelate Superconductors
Christopher Lane, Ruiqi Zhang, Bernardo Barbiellini +4
The recently discovered infinite-layer nickelates show great promise in helping to disentangle the various cooperative mechanisms responsible for high-temperature superconductivity…
Peierls distortion driven multi-orbital origin of charge density waves in the undoped infinite-layer nickelate
Ruiqi Zhang, Christopher Lane, Johannes Nokelainen +5
Understanding similarities and differences between the cuprate and nickelate superconductors is drawing intense current interest. Competing charge orders have been observed recentl…
-electron and magnetic ordering effects in nickelates LaNiO and NdNiO: remarkable role of the cuprate-like band
Ruiqi Zhang, Christopher Lane, Bahadur Singh +5
Recent discovery of superconductivity in the doped infinite-layer nickelates has renewed interest in understanding the nature of high-temperature superconductivity more generally.…
First-Principles Calculation of Spin and Orbital Contributions to Magnetically Ordered Moments in SrIrO
Christopher Lane, Yubo Zhang, James W. Furness +4
We show how an accurate first-principles treatment of the canted-antiferromagnetic ground state of SrIrO, a prototypical correlated spin-orbit coupled material, can be…
Critical role of magnetic moments in heavy-fermion materials: revisiting mysteries of SmB
Ruiqi Zhang, Bahadur Singh, Christopher Lane +6
Heavy-fermion family exhibits fascinating and often puzzling properties due to the presence of open-shell ions and the complexity of the associated charge, orbital, and spin de…
Examining the surface phase diagram of IrTe with photoemission
M. Rumo, C. W. Nicholson, A. Pulkkinen +13
In the transition metal dichalcogenide IrTe, low-temperature charge-ordered phase transitions involving Ir dimers lead to the occurrence of stripe phases of different periodici…
Antiferromagnetic Ground State of LaCuO: A Parameter-free Ab Initio Description
Christopher Lane, James W. Furness, Ioana Gianina Buda +5
We show how an accurate first-principles treatment of the antiferromagnetic (AFM) ground state of LaCuO can be obtained without invoking any free parameters such as the Hub…
3D Dirac cone carrier dynamics in Na3Bi and Cd3As2
G. S. Jenkins, C. Lane, B. Barbiellini +12
Optical measurements and band structure calculations are reported on 3D Dirac materials. The electronic properties associated with the Dirac cone are identified in the reflectivity…
Natural orbital functional theory and pairing correlation effects in electron momentum density
B. Barbiellini
Occupation numbers of natural orbitals capture the physics of strong electron correlations in momentum space. A Natural Orbital Density Functional Theory based on the antisymmetriz…
Minority-spin states and the degree of spin polarization in ferromagnetic metallic LaSrMnO ()
Z. Sun, Q. Wang, J. F. Douglas +10
Using angle-resolved photoemission spectroscopy (ARPES), we investigate the electronic band structure and Fermi surface of ferromagnetic LaSrMnO (…
Lindhard and RPA susceptibility computations in extended momentum space in electron doped cuprates
Yung Jui Wang, B. Barbiellini, Hsin Lin +6
We present an approximation for efficient calculation of the Lindhard susceptibility in a periodic system through the use of simple products of real space functions an…
Non-monotonic Fermi surface evolution and its correlation with stripe ordering in bilayer manganites
Z. Sun, Q. Wang, J. F. Douglas +11
In correlated electron systems such as cuprate superconductors and colossal magnetoresistive (CMR) oxides there is often a tendency for a nanoscale self-organization of electrons t…
Direct observation of localization in the minority-spin-band electrons of magnetite below the Verwey temperature
H. Kobayashi, T. Nagao, M. Itou +5
Two-dimensional spin-uncompensated momentum density distributions, s, were reconstructed in magnetite at 12K and 300K from several measured directional mag…
The Resonating-Valence-Bond Ground State of Li Nanoclusters
D. Nissenbaum, L. Spanu, C. Attaccalite +2
We have performed Diffusion Quantum Monte Carlo simulations of Li clusters showing that Resonating-Valence-Bond (RVB) pairing correlations between electrons provide a substantial c…
Extracting d-orbital occupancy from magnetic Compton scattering in bilayer manganites
B. Barbiellini, P. E. Mijnarends, S. Kaprzyk +4
We consider the shape of the magnetic Compton profile (MCP), , in LaSrMnO for momentum transfer along the [110] direction and the associ…
A spin-polarized scheme for obtaining quasi-particle energies within the density functional theory
B. Barbiellini, A. Bansil
We discuss an efficient scheme for obtaining spin-polarized quasi-particle excitation energies within the general framework of the density functional theory (DFT). Our approach is…
Magnetic momentum density, Fermi surface and directional magnetic Compton profiles in LaSrMnO and LaSrMnO
P. E. Mijnarends, S. Kaprzyk, B. Barbiellini +4
We have carried out first principles, all-electron computations of the magnetic momentum density and magnetic Compton profiles (MCPs) for momentum transfer a…
Temperature dependent orbital degree of freedom in a bilayer manganite by magnetic Compton scattering
Yinwan Li, P. A. Montano, J. F. Mitchell +4
We have measured temperature-dependent magnetic Compton profiles (MCPs) from a single crystal of LaSrMnO. The MCPs, which involved the scattering of circula…
Compton scattering beyond the impulse approximation
I. G. Kaplan, B. Barbiellini, A. Bansil
We treat the non-relativistic Compton scattering process in which an incoming photon scatters from an N-electron many-body state to yield an outgoing photon and a recoil electron,…