- Tytuł:
- Magnet with Ferromagnetic Nearest-Neighbor and Antiferromagnetic Next-Nearest-Neighbor Exchange Interactions
- Autorzy:
-
Szymczak, R.
Szymczak, H.
Kamieniarz, G.
Szukowski, G.
Jaśniewicz-Pacer, K.
Florek, W.
Maltsev, V.
Babonas, G. - Powiązania:
- https://bibliotekanauki.pl/articles/1808031.pdf
- Data publikacji:
- 2009-05
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
75.40.Cx
75.50.Ee
75.30.Gw
75.30.Et
75.30.Kz - Opis:
- Magnetic properties of $Pb[Cu(SO_4)(OH)_2]$ (linarite) natural single crystals were studied by magnetization and specific heat measurements. The angular dependences of magnetization were revealed which correlated with the regularities of the crystal structure. At about 2.8 K this quasi-one-dimensional Heisenberg system undergoes a phase transition to the long-range antiferromagnetic order with antiparallel magnetic moments aligned probably along the b-axis. The antiferromagnetic order is evidenced by the metamagnetic transition and pronounced λ-type anomaly at $T_N$ in the specific heat. Using phenomenological modeling based on a quantum transfer-matrix method, we argue that at higher temperatures linarite is a quasi-one-dimensional system with competing ferromagnetic nearest-neighbor and antiferromagnetic next-nearest-neighbor exchange interactions.
- Źródło:
-
Acta Physica Polonica A; 2009, 115, 5; 925-930
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł