Abstract
Antiferromagnetic magnons Nd2CuO4, which is the mother material of the electron superconductor (Nd1-xCex)2CuO4-y, are observed by Raman scattering. The effective exchange integral estimated from the two-magnon peak energy is 1070 cm-1, which is unexpectedly large in spite of the large Cu-Cu atomic distance compared with those in other superconducting oxides. Lattice vibrations are also investigated. A large two-phonon peak due to the intralayer breathing mode is observed at 1178 cm-1.. AE
| Original language | English |
|---|---|
| Pages (from-to) | 2686-2689 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 40 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jan 1 1989 |
| Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics