Can there be a T3 ln T kind of behaviour of the low temperature specific heat of liquid 3He without the paramagnons?
✍ Scribed by D.N. Tripathy; Subodha Mishra
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 427 KB
- Volume
- 226
- Category
- Article
- ISSN
- 0921-4526
No coin nor oath required. For personal study only.
✦ Synopsis
It is shown that even without invoking the concepts like paramagnons, the temperature dependence of the interparticle correlations in a system of liquid 3He can give rise a T 3 In T kind of behaviour of its low temperature fermionic specific heat. It is found to be coming from the self-energy corrections to the bare single particle energy involving the particle-hole propagator. Looking at the similar kind of behaviour observed by us recently for an electron liquid, one may conclude that the T 3 In T behaviour is perhaps universal for all fermi systems, although for liquid 3He the very dependence also follows from the paramagnon effects. It is interesting to see that unlike earlier theories, an extremely good fit is obtained with the experimental data over the entire range of low temperatures.