Indication for an antiferromagnetic exchange interaction in high-Tc superconductors
T. Dahm
DOI 10.1103/PhysRevB.53.14051 · Physical Review B
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Abstract
Recently observed dip structures in angle-resolved photoemission spectroscopy and electron-tunneling experiments on high-Tc superconductors are investigated choosing an antiferromagnetic exchange interaction with a resonant peak structure in frequency as observed in recent neutron-scattering experiments. In our calculations we see similar structures in the spectral weight, in the density of states, and in the c-axis optical conductivity, which provides a possible explanation for this unusual behavior.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi2212 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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