13 papers
Probing Magnetic Gap Collapse within a Three-band Model of Resonant inelastic x-ray scattering (RIXS) in the Cuprates
R. S. Markiewicz, A. Bansil
We present a three-band Hubbard Hamiltonian and the associated Cu K-edge RIXS spectra for electron and hole doped cuprates over a wide range of energy and momentum transfers. By co…
Magnetic Quantum Critical Point in YBa_2Cu_3O_{7-delta}? Resolving the Correlation Length Controversy
R. S. Markiewicz
A mode coupling calculation which previously explained the Mott gap collapse induced in cuprates by electron doping is applied to the analogous problem of hole doping. A plateau in…
Self-Consistent Renormalization Model of Mott Gap Collapse in the Cuprates
R. S. Markiewicz
A generalized antiferromagnetic approach to the Mott transition is analyzed with special emphasis on electron doped cuprates, where evidence for electronic phase separation is weak…
Quantum Critical Point in Electron-Doped Cuprates
C. Kusko, R. S. Markiewicz, M. Lindroos +1
We analyze doping dependent spectral intensities and Fermi surface maps obtained recently in NdCeCuO (NCCO) via high resolution ARPES measurements, and show t…
How different Fermi surface maps emerge in photoemission from Bi2212
M. C. Asensio, J. Avila, L. Roca +5
We report angle-resolved photoemission spectra (ARPES) from the Fermi energy () over a large area of the () plane using 21.2 eV and 32 eV photons in two distinct pola…
Berryonic Matter in the Cuprates
R. S. Markiewicz
A novel form of Jahn-Teller (JT) effect in the cuprates can be reinterpreted as a conventional JT effect on a lattice with a larger unit cell. There is a triplet of instabilities,…