Abstract
Pressure effects on the magnetic properties of the triangular lattice Heisenberg antiferromagnet CsNiCl3 have been studied through heat capacity measurements up to the pressure of 6.6 kbar. With increasing pressure, two successive phase transitions at TN1 = 4.74 K and TN2 = 4.24 K at 0 kbar, which result from a small Ising-type anisotropy of S = 1 moments on Ni2+ ions, shift to higher temperatures in proportion to the pressure. Moreover, the pressure dependence of the entropy indicates that the intermediate phase AF1 (TN2 < T < TN1) is stabilized. These results suggest that the pressurization enhances the Ising-type anisotropy in the spin moments.
| Original language | English |
|---|---|
| Journal | Journal of Physics Condensed Matter |
| Volume | 15 |
| Issue number | 44 |
| DOIs | |
| Publication status | Published - Nov 12 2003 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
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Pressure-induced stabilization of an intermediate phase in the triangular lattice antiferromagnet CsNiCl3 . / Ito, M.; Asano, T.; Kawae, Tatsuya; Ajiro, Y.; Takeda, K.
In: Journal of Physics Condensed Matter, Vol. 15, No. 44, 12.11.2003.Research output: Contribution to journal › Letter
}
TY - JOUR
T1 - Pressure-induced stabilization of an intermediate phase in the triangular lattice antiferromagnet CsNiCl3
AU - Ito, M.
AU - Asano, T.
AU - Kawae, Tatsuya
AU - Ajiro, Y.
AU - Takeda, K.
PY - 2003/11/12
Y1 - 2003/11/12
N2 - Pressure effects on the magnetic properties of the triangular lattice Heisenberg antiferromagnet CsNiCl3 have been studied through heat capacity measurements up to the pressure of 6.6 kbar. With increasing pressure, two successive phase transitions at TN1 = 4.74 K and TN2 = 4.24 K at 0 kbar, which result from a small Ising-type anisotropy of S = 1 moments on Ni2+ ions, shift to higher temperatures in proportion to the pressure. Moreover, the pressure dependence of the entropy indicates that the intermediate phase AF1 (TN2 < T < TN1) is stabilized. These results suggest that the pressurization enhances the Ising-type anisotropy in the spin moments.
AB - Pressure effects on the magnetic properties of the triangular lattice Heisenberg antiferromagnet CsNiCl3 have been studied through heat capacity measurements up to the pressure of 6.6 kbar. With increasing pressure, two successive phase transitions at TN1 = 4.74 K and TN2 = 4.24 K at 0 kbar, which result from a small Ising-type anisotropy of S = 1 moments on Ni2+ ions, shift to higher temperatures in proportion to the pressure. Moreover, the pressure dependence of the entropy indicates that the intermediate phase AF1 (TN2 < T < TN1) is stabilized. These results suggest that the pressurization enhances the Ising-type anisotropy in the spin moments.
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U2 - 10.1088/0953-8984/15/44/L05
DO - 10.1088/0953-8984/15/44/L05
M3 - Letter
VL - 15
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 44
ER -