Low Temperature Specific Heat of ZrTe3
Low Temperature Specific Heat of ZrTe3
复制标题
ZrTe3 的低温比热容
DOI：
10.7567/jjaps.26s3.973
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发表时间：
1987
影响因子：
1.5
通讯作者：
T. Sambongi
中科院分区：
文献类型：
--
作者：
S. Matsuda;K. Yamaya;Y. Abe;T. Sambongi
在1.3~9K温度范围内，用热弛豫法测量了ZrTe3的比热。在5K附近，晶格对比热的贡献偏离了德拜行为，从T_3变化到T_(2.5)。此行为表示晶格各向异性的影响。根据电子对比热的贡献，我们估计了费米能级上的电子态密度为0.67态/(eV.Spin.分子)。超导转换处的比热异常不是一个跳跃，而是从正常值逐渐增大。这支持了ZrTe3中超导电性的丝状性质。
Specific heat of ZrTe3 was measured by the thermal relaxation method in the temperature range from 1.3K to 9K. The lattice contribution to the specific heat deviated from Debye-behavior near 5K, changing from T3 to T2.5. This behavior indicates the effects of lattice anisotropy. From the electronic contribution to the specific heat we estimated an electron density of states at the Fermi level of 0.67 states/(eV.spin.molecule). The specific heat anomaly at the supercon-ducting transition was not a jump, but gradual increase from the normal value. This supports a filamentary nature of the superconductivity in ZrTe3.