4 papers
Evolution of a Metal to Insulator Transition in CaNaCuOCl, as seen by ARPES
F. Ronning, T. Sasagawa, Y. Kohsaka +10
We present angle resolved photoemission (ARPES) data on Na-doped CaCuOCl. We demonstrate that the chemical potential shifts upon doping the system across the insulator…
Electronic Structure of Mott Insulators Studied by Inelastic X-ray Scattering
M. Z. Hasan, E. D. Isaacs, Z-X. Shen +4
The electronic structure of Mott insulators continues to be a major unsolved problem in physics despite more than half-century of intense research efforts. Well-developed momentum-…
Spin Liquid State around a Doped Hole in Insulating Cuprates
T. Tohyama, Y. Shibata, S. Maekawa +3
The numerically exact diagonalization study on small clusters of the t-J model with the second- and third- neighbor hopping terms shows that a novel spin liquid state is realized a…
Photoemission Evidence for a Remnant Fermi Surface and d-Wave-Like Dispersion in Insulating Ca2CuO2Cl2
F. Ronning, C. Kim, D. L. Feng +6
An angle resolved photoemission study on Ca2CuO2Cl2, a parent compound of high Tc superconductors is reported. Analysis of the electron occupation probability, n(k) from the spectr…