Fe0.6Pd0.4Te2:FeTe2和PdTe2的一种新多态,在环境压力下稳定
Wanping Wang1,2, Jianjun Tian1, Xiao Tong3
1Henan Key Laboratory of Quantum Materials and Quantum Energy, School of Quantum Information Future Technology, Henan University, Kaifeng 475004, China.
我们在环境压力下合成了Fe0.6Pd0.4Te2与岩结构. 这种材料表现出15K以上的金属行为和15K以下的电阻上升,这是由于电子障碍.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 晶体学 晶体学是指结晶学.
背景情况:
- 矿空间组通常是FeTe2的高压多态.
- 在环境条件下合成具有岩结构的材料存在挑战.
研究的目的:
- 通过使用环境压力晶体生长来合成和表征Fe0.6Pd0.4Te2与矿空间组 (Pa-3) .
- 为了研究合成化合物的电子特性和相变.
主要方法:
- 单晶通过环境压力方法生长.
- 在FeTe2中的铁 (Fe) 原子位点上替换 (Pd).
- 电阻测量作为温度的函数.
主要成果:
- 在环境压力下成功合成了Fe0.6(1)Pd0.4(1)Te2单晶,其中有矿空间组 (Pa-3) .
- 观察到15K以上的金属行为,与布洛赫-格鲁尼森关系一致.
- 检测到电阻率上升低于15K,归因于相关电子状态的与混乱相关的散射.
结论:
- 在环境条件下,Pd的替代使FeTe2中能够形成pyrite结构.
- 合成的Fe0.6Pd0.4Te2具有独特的电子特性,受到结构障碍的影响.
更多相关视频
07:14Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
Published on: May 12, 2023
10:42Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
相关概念视频
Predicting Molecular Geometry
Types of Step-Growth Polymers: Polyesters
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group...
Molecular Orbital Theory II
