基于Pi-捐赠者BETS的双功能超导体与聚合物二胺二酸(II) 离子层:kappa-(BETS) 2Mn[N(CN) 22]3
Nataliya D Kushch1, Eduard B Yagubskii, Mark V Kartsovnik
1Institute of Problems of Chemical Physics, Russian Academy of Science, Chernogolovka, 142432 Russia. kushch@icp.ac.ru
Journal of the American Chemical Society
|May 17, 2008
概括
研究人员合成了新的超导晶体,kappa-(BETS) 2Mn[N(CN) 2 3 ,表现出导电和磁性质. 这些材料在中等压力下在约5K时表现出超导性,为先进材料研究开辟了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 固态化学 固态化学
背景情况:
- 探索具有电子和磁性功能的分子材料对于开发新型电子设备至关重要.
- 基于二乙烯基二乙烯基二乙烯基 (BETS) 基的激素盐以其丰富的电子特性而闻名,包括超导性.
- 将磁离子纳入这些系统可以导致复杂的相位图和奇特的量子现象.
研究的目的:
- 为了合成和表征一种新的BETS激素盐,其中包含磁性二胺二酸 ((II) 离子.
- 为了研究电导率,磁顺序和超导性之间的相互作用,在得到的材料中.
- 为了确定超导过渡温度 (Tc) 以及它发生的条件.
主要方法:
- 单晶合成的kappa-(BETS) 2Mn[N(CN) 2) 3.3. 一个单晶合成的kappa-(BETS) 2Mn[N(CN) 2) 3.
- 电阻测量作为温度和压力的函数.
- 测量磁性易感度以探测磁性排序.
主要成果:
- 成功合成了kappa-(BETS) 2Mn[N(CN) 2) 的单晶3.3.
- 在环境压力下观察联合导电和磁性质.
- 在0.3 kbar.的中等压力下,以大约5 K的过渡温度 (Tc) 诱导超导.
结论:
- 合成的材料是kappa-(BETS) 2Mn[N(CN) 2 3 ,它是一种具有电子和磁性特性的新型分子超导体.
- 这些发现证明了BETS带有磁离子的激素盐在制造具有可调的超导和磁性行为材料方面的潜力.
- 这项工作有助于理解低维有机导体中超导和磁性之间的微妙平衡.
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