| Autor: |
Petit, Sylvain, Bonville, Pierre, Robert, Julien, Decorse, Claudia, Mirebeau, Isabelle |
| Rok vydání: |
2012 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.86.174403 |
| Popis: |
We have studied the low energy spin dynamics between 4.6K and 0.07K in a Tb2Ti2O7 single crystal sample, by means of inelastic neutron scattering experiments. The spectra consist in a dual response, with a static and an inelastic contribution, showing striking Q-dependences. We propose an interpretation involving an anisotropic exchange interaction in combination with a breaking of the threefold symmetry at the rare earth site. Simulations of the Q-dependent scattering in the Random Phase Approximation account well for the inelastic response. |
| Databáze: |
arXiv |
| Externí odkaz: |
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