Phonon density of states and superconductivity in Nd1.85Ce0.15CuO4
J. W. Lynn, I. W. Sumarlin, D. A. Neumann, J. J. Rush, J. L. Peng, Z. Y. Li
DOI 10.1103/PhysRevLett.66.919 · Physical Review Letters
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Abstract
Inelastic-neutron-scattering techniques have been used to measure the generalized phonon density of states in superconducting Nd1.85Ce0.15CuO4. There is reasonable agreement at low energies between our measurements and recent point-contact-tunneling density-of-states measurements reported by Huang et al., which suggests that phonons play a major role in pairing in the electron-superconductor systems. The correspondence at higher energies, however, is not particularly good, but probably reflects the difficulty in obtaining quantitative tunneling data.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nd1.85Ce0.15CuO4 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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