Low temperature specific heat of UCoAl near the ferromagnetic quantum phase transition

0539062 - FZÚ 2021 RIV JP eng C - Konferenční příspěvek (zahraniční konf.)
Maeda, M. - Kimura, N. - Kabeya, N. - Haga, Y. - Matsuda, T. D. - Andreev, Alexander V. - Shirasaki, K.
Low temperature specific heat of UCoAl near the ferromagnetic quantum phase transition.
JPS Conference Proceedings. Vol. 30. Tokyo: Physical Society of Japan, 2020 - (Hotta, T.; Katsufuji, T.), s. 1-6, č. článku 011034. ISBN 978-4-89027-142-9. ISSN 2435-3892.
[International Conference on Strongly Correlated Electron Systems (SCES2019). Okayama (JP), 23.09.2020-28.09.2020]
Grant CEP: GA ČR(CZ) GA19-00925S
Institucionální podpora: RVO:68378271
Klíčová slova: quantum phase transition * itinerant electron ferromagnetism * specific heat * UCoAl
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)

Low temperature specific heat of UCo1-xOsxAl is investigated. Anomalous temperature dependences are observed for UCoAl and UCo0.998Os0.002Al, whose ground state locates near the quantum phase transition point of the itinerant-electron ferromagnetism. This suggests that an additional contribution to the electronic specific heat exists in these samples. The effect of conventional spin fluctuations cannot explain this behavior.

Trvalý link: http://hdl.handle.net/11104/0316816