- Tytuł:
- KEr(MoO$\text{}_{4}$)$\text{}_{2}$ and CsDy(MoO$\text{}_{4}$)$\text{}_{2}$ - Low-Dimensional Ising Magnets
- Autorzy:
-
Kačmár, M.
Orendáčová, A.
Čizmár, E.
Horváth, D.
Orendáč, M.
Bondarenko, V.
Anders, A. G.
Feher, A.
Jaščur, M. - Powiązania:
- https://bibliotekanauki.pl/articles/2013657.pdf
- Data publikacji:
- 2000-05
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.40.Cx
75.10.Hk
75.40.Mg - Opis:
- In the present work the behaviour of cluster excitations in magnetic field, B, parallel to the easy axis was experimentally studied by the measurements of KEr(MoO$\text{}_{4}$)$\text{}_{2}$ and CsDy(MoO$\text{}_{4}$)$\text{}_{2}$ specific heat, C, vs. B dependence studied at a constant temperature. Corresponding Monte Carlo simulations of C revealed that despite of the fact that the Ising exchange-coupling models proved useful for a sufficient description of the specific heat of these dipolar systems in B=0, the analysis of current experimental data requires a partial renormalization of exchange-coupling constants previously obtained from B=0 analysis. The influence of crystal field effects and long-range character of spin correlations is discussed.
- Źródło:
-
Acta Physica Polonica A; 2000, 97, 5; 807-810
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł