High Field Magnetization of Low-Dimensional Heisenberg Antiferromagnets
- 1 May 1980
- journal article
- letter
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 48 (5), 1771-1772
- https://doi.org/10.1143/jpsj.48.1771
Abstract
Magnetization measurements of two low-dimensional antiferromagnets copper benzoate Cu(C 6 H 5 COO) 2 ·3H 2 O and copper tetra-amine sulfate Cu(NH 3 ) 4 SO 4 ·H 2 O (CTS) were done at liquid helium temperatures under a pulsed high field up to 400 kOe. The modified critical field H ' c of the antiferromagnetic-paramagnetic transition is obtained to be 266±15 and 100±5 kOe for copper benzoate and CTS, respectively. The spin contraction effect in the antiferromagnetic spin short range order state is clearly found below H ' c .Keywords
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