High-Pressure High-Temperature Synthesis of e-Fe2IrN0.24

被引：5

作者：

Guo, Kai ^{[1
]}

Rau, Dieter ^{[2
]}

Schnelle, Walter ^{[1
]}

Burkhardt, Ulrich ^{[1
]}

Niewa, Rainer ^{[2
]}

Schwarz, Ulrich ^{[1
]}

机构：

[1] Max Planck Inst Chem Phys Fester Stoffe, D-01187 Dresden, Germany

[2] Univ Stuttgart, Inst Anorgan Chem, D-50569 Stuttgart, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2014年 / 640卷 / 05期

关键词：

Iridium; Iron; Nitrogen; High-pressure; Antiferromagnetism; MAGNETIC-PROPERTIES; ELECTRONIC-STRUCTURE; CRYSTAL-STRUCTURE; NITRIDES; NANOPARTICLES; EPSILON-FE3N; TRANSITION; NITROGEN; LATTICE; RHFE3N;

D O I：

10.1002/zaac.201300609

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A high-pressure high-temperature synthesis involving initial reaction, nitrogen depletion and annealing yields a new E-type iron iridium nitride. Energy dispersive X-ray spectroscopy of metallographic samples evidence a main phase having a molar metal ratio of Fe:Ir = 2:1 within experimental error. Chemical analyses and thermogravimetric measurements quantify the nitrogen content to 1.07 wt% (x = 0.24) and 1.2 wt% (x = 0.27), respectively. Above 750 K, the phase Fe2IrN0.24 decomposes into solid solutions E-Fe(Ir) and -Fe(Ir) involving the release of N-2 at ambient pressure. Magnetic susceptibility data suggest long-range antiferromagnetic ordering at T-N = 27 K.

引用

页码：814 / 818

页数：5

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