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Quasiparticle dispersion of Sr2CuO2Cl2 |
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| Authors: | A Nazarenko K J E Vos S Haas E Dagotto and R J Gooding |
| Affiliation: | (1) Department of Physics, National High Magnetic Field Lab, Florida State University, 32306 Tallahassee, FL, USA;(2) Department of Physics, Queen's University, K7L 3N6 Kingston, Ontario, Canada |
| Abstract: | Recent angle resolved photoemission (ARPES) measurements for the insulating cuprate Sr2CuO2Cl2 have provided the first experimental data which can be directly compared to the (theoretically) well-studied problem of a single hole propagating in an antiferromagnet. Some discrepancies withthe familiar 2D t— J model were observed. Here we discuss a comparison between the ARPES results and the quasiparticle dispersion of both (i) the extended t— t — J Hamiltonian and (ii) the three-band Hubbard model. |
| Keywords: | Angle resolved photoemission t-J model quasiparticle dispersion |
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