- Tytuł:
- Kondo Screening Effect and Ferromagnetic Order in $UCu_2Si_2$
- Autorzy:
-
Troć, R.
Samsel-Czekała, M.
Coqblin, B. - Powiązania:
- https://bibliotekanauki.pl/articles/1426710.pdf
- Data publikacji:
- 2012-05
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.43.Qt
75.30.Mb
75.30.Fv
71.18.+y - Opis:
- Electrical resistivity and low temperature magnetoresistivity measurements made on a single crystal of $UCu_2Si_2$ are reported. By using as a phonon reference the temperature dependence of the electrical resistivity of $ThCu_2Si_2$ we could establish that $UCu_2Si_2$ has both a ferromagnetic and a Kondo behaviour. Such a phenomenon can be described by the underscreened Kondo lattice model. The magnetoresistivity revealed the presence of magnetic fluctuations within the ferromagnetic order as it was reported previously for $UGe_2$. Also one of the calculated Fermi surface sheets exhibits nesting properties, being in perfect agreement with the previous neutron diffraction data, supporting the possibility of a presence of the spin density wave phase. In this ternary silicide, where the strong ferromagnetic behaviour exists, this phase is signalised by magnetic fluctuations.
- Źródło:
-
Acta Physica Polonica A; 2012, 121, 5-6; 1023-1025
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł