Best results
2022
1. Quantum versus classical nature of low-temperature phase transition in TbAl3(BO3)4.
V. Bedarev et al. (Phys. Rev. B V. 105, P. 094418 (2022))
Manifestations of the quantum phase transition have been experimentally revealed.
Such a transition is caused by quantum, not thermal fluctuations so it is impossible to obtain
zero temperature under experimental conditions. It was possible to achieve the quantum critical
point by continuously shifting the usual phase transition of the second kind in TbAl3(BO3)4
from non-zero temperature to "effectively zero" by applying an increasingly powerful external magnetic
field at temperatures of 50 mK – 4 K. Analysis of the temperature dependence of specific heat
capacity and magnetization data revealed a significant influence of quantum fluctuations on the
thermodynamic properties of terbium aluminoborate.
Best results 2021