104 citations · 240 across the 5 of their papers we have counts for
4 papers · 1 filter
Prediction and Observation of Intermodulation Sidebands from Anharmonic Phonons
Y. Shen, C. N. Saunders, C. M. Bernal +4
A quantum Langevin model, similar to models used recently for optomechanics, was used to predict intermodulation phonon sidebands (IPS). Ab initio calculations of anharmonic phonon…
A nuclear quantum effect with pure anharmonicity and the anomalous thermal expansion of silicon
D. S. Kim, O. Hellman, J. Herriman +7
Despite the widespread use of silicon in modern technology, its peculiar thermal expansion is not well-understood. Adapting harmonic phonons to the specific volume at temperature,…
Phonon quarticity induced by changes in phonon-tracked hybridization during lattice expansion and its stabilization of rutile TiO
Tian Lan, C. W. Li, O. Hellman +5
Although the rutile structure of TiO is stable at high temperatures, the conventional quasiharmonic approximation predicts that several acoustic phonons decrease anomalously to…
Nonharmonic Phonons in -Iron at High Temperatures
L. Mauger, M. S. Lucas, J. A. Muñoz +5
Phonon densities of states (DOS) of bcc -Fe were measured from room temperature through the 1044K Curie transition and the 1185K fcc -Fe phase transition using nuclear…