Superconductivity of [Pd(dmit) 2 ] Salts under Pressure Studied by an RF Technique
Superconductivity of [Pd(dmit) 2 ] Salts under Pressure Studied by an RF Technique
复制标题
射频技术研究[Pd(dmit) 2 ]盐在压力下的超导性
DOI：
10.1080/713738683
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发表时间：
2002
影响因子：
0.7
通讯作者：
R. Kato
中科院分区：
文献类型：
--
作者：
S. Ohira;M. Tamura;R. Kato
开发了一种用于检测射频磁场（2-8 MHz）屏蔽效应的仪器，以研究某些[Pd(dmit) 2 ]盐的超导（SC）特性。系统的主要部分由两个LC振荡器组成，可以在低温下工作。由于线圈中样品的超导转变而产生的屏蔽信号被检测为射频输出频率的增加。线圈设置在夹式压力盒内。使用该系统研究了一些[Pd(dmit) 2 ]盐中的SC。在压力下低于 4 K 时观察到频率增加。这可能表明[Pd(dmit) 2 ]盐的超导转变的存在。然而，屏蔽信号比在普通有机超导体如s-(BEDT-TTF) 2 )Cu[N(CN) 2 Br]中观察到的屏蔽信号小约10m 2 倍。报道了[Pd(dmit) 2 ]盐中SC的这种特性。 [Pd(dmit) 2 ] 盐类超导射频屏蔽
An instrument for detection of a shielding effect of RF magnetic fields (2-8 MHz) has been developed to investigate the characteristics of the superconductivity (SC) of some [Pd(dmit) 2 ] salts. The main part of the system consists of two LC oscillators, which can operate at low temperatures. The shielding signal due to a superconducting transition of the sample in the coil is detected as an increase of the frequency of the RF output. The coils are set within a clamp-type pressure cell. SC in a few [Pd(dmit) 2 ] salts was investigated by using this system. An increase in the frequency was observed below 4 K under pressure. This may indicate the existence of the superconducting transition of the [Pd(dmit) 2 ] salts. However, the shielding signal was about 10 m 2 times as small as that observed in an ordinary organic superconductor such as s -(BEDT-TTF) 2 )Cu[N(CN) 2 Br]. This peculiarity of the SC in the [Pd(dmit) 2 ] salts is reported. [Pd(dmit) 2 ] salts superconductor RF shielding