Accurate determination of the exchange constant in Sr2CuO3 from recent theoretical results
Accurate determination of the exchange constant in Sr2CuO3 from recent theoretical results
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DOI：
10.1103/physrevb.53.5116
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发表时间：
1996-03-01
影响因子：
3.7
通讯作者：
Eggert, S
中科院分区：
文献类型：
--
作者：
Eggert, S
敏感性测量数据[Ami等人，物理学。与Sr2CuO3的最新理论预测相比较[Eggert et al., Phys.]。反铁磁自旋-1/2海森堡链的磁化率[j]。实验数据完全证实了理论预测，并建立了Sr2CuO3几乎完美地表现为一维反铁磁体，交换耦合为J=1700(-100)(+150)K。
Data from susceptibility measurements [Ami et al., Phys. Rev. B 51, 5994 (1995)] on Sr2CuO3 are compared with recent theoretical predictions [Eggert et al., Phys. Rev. Lett. 73, 332 (1994)] for the magnetic susceptibility of the antiferromagnetic spin-1/2 Heisenberg chain. The experimental data fully confirms the theoretical predictions and in turn we establish that Sr2CuO3 behaves almost perfectly like a one-dimensional antiferromagnet with an exchange coupling of J=1700(-100)(+150)K.