The regular periodic intensity bursts recently observed in the expansion of solid 4He into vacuum have anomalies that have been attributed to a transition to some new solid phase induced by excess vacancies. Here it is shown that a small concentration of 3He, from 1% down to 0.1%, added to the 4He solid is sufficient to remove all the anomalies. The origin of the observed anomalies is discussed in the light of these new experiments.
Benedek, G., Grisenti, R., Kaesz, M., Toennies, J. (2007). The effect of 3He impurities on anomalous oscillations in the expansion of solid 4He. JOURNAL OF LOW TEMPERATURE PHYSICS, 146(3/4), 393-402 [10.1007/s10909-006-9273-x].
The effect of 3He impurities on anomalous oscillations in the expansion of solid 4He
BENEDEK, GIORGIO;
2007
Abstract
The regular periodic intensity bursts recently observed in the expansion of solid 4He into vacuum have anomalies that have been attributed to a transition to some new solid phase induced by excess vacancies. Here it is shown that a small concentration of 3He, from 1% down to 0.1%, added to the 4He solid is sufficient to remove all the anomalies. The origin of the observed anomalies is discussed in the light of these new experiments.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.