Physical properties and the Peierls instability ofLi0.82[Pt(S2C2(CN)2)2] · 2H2O
Physical properties and the Peierls instability ofLi0.82[Pt(S2C2(CN)2)2] · 2H2O
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DOI：
10.1103/physrevb.29.4796
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发表时间：
1984-04
影响因子：
3.7
通讯作者：
M. Ahmad;D. Turner;A. Underhill;C. S. Jacobsen;K. Mortensen;K. Carneiro
中科院分区：
文献类型：
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作者：
M. Ahmad;D. Turner;A. Underhill;C. S. Jacobsen;K. Mortensen;K. Carneiro
给出了一维导体Li 0.82 [Pt (s2 c2 (CN) 2) 2]·2h2o, LiPt （mnt）的红外反射率、随温度变化的电导率和热功率。它在tc = 215 K时经历了一个简单的佩尔斯跃迁，它不受相关性或阳离子排序的影响。金属LiPt （mnt）的传递积分为| t∥|≈0.1 eV。当155 K< T< T c时，它表现为Δ≈36 meV的本征佩尔斯半导体。在较低的温度下，热功率表明由于供体杂质的存在而产生的外在行为。我们的结果与磁化率研究结果一致。
The infrared reflectivity, the temperature-dependent conductivity, and thermopower of the one-dimensional conductor Li 0.82 [Pt (S 2 C 2 (CN) 2) 2]· 2 H 2 O, LiPt (mnt), is presented. It undergoes a simple Peierls transition at T c= 215 K, which is not influenced by correlations or by cation ordering. The metallic LiPt (mnt) is characterized by a transfer integral| t∥|≈ 0.1 eV. When 155 K< T< T c it behaves as an intrinsic Peierls semiconductor with Δ≈ 36 meV. At lower temperatures the thermopower indicates extrinsic behavior due to the presence of donor impurities. Our results agree with those obtained from magnetic-susceptibility studies.