Physical properties optimization of polycrystalline LiFeAs
详细信息 查看全文
- 作者：Shiv J. Singha ; b ; s.j.singh@ifw-dresden.de" class="auth_mail" title="E-mail the corresponding author ; sjsingh@mmm.muroran-it.ac.jp" class="auth_mail" title="E-mail the corresponding author ; shivjees@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Uwe Grä ; fea ; Robert Becka ; Anja U.B. Woltera ; Hans-Joachim Grafea ; Christian Hessa ; c ; Sabine Wurmehla ; d ; Bernd Bü ; chnera ; c ; d
- 关键词：Iron based superconductors ; Polycrystalline bulk ; Transition temperature ; NQR ; Specific heat
- 刊名：Physica C: Superconductivity
- 出版年：2016
- 出版时间：15 October 2016
- 年：2016
- 卷：529
- 期：Complete
- 页码：8-20
- 全文大小：4311 K
文摘
- •
Synthesis of polycrystalline LiFeAs in a very broad heating temp. range (200–900 °C).
- •
These samples are characterized by various physical and magnetic measurements.
- •
Interestingly, the LiFeAs phase starts to form at 200 °C with Tc of 19.2 K.
- •
600 °C synthesis temperature yields optimal high quality polycrystalline LiFeAs.
- •
The properties of the best sample are consistent with that of LiFeAs single crystal.