Symmetry dependent libron-phonon coupling in (NH4)2PdCl6
The temperature dependence of the tunneling spectrum of the ammonium ion in (NH4)2PdCl6 is studied by high resolution inelastic neutron scattering up to T = 46 K. The A → T transition is found to be at any temperature broader by a factor ∼2 than the T → E line and the quasielastic component (T → T transitions). This shows for the first time for ammonium rotors that the totally symmetric A librational state couples more strongly to phonons than the T- and E-symmetric states. © 2009 Elsevier B.V. All rights reserved.
Publication Source (Journal or Book title)
Prager, M., & Schneider, G. (2009). Symmetry dependent libron-phonon coupling in (NH4)2PdCl6. Chemical Physics, 362 (1-2), 16-18. https://doi.org/10.1016/j.chemphys.2009.05.019