The structural diversity and properties of NbxMo1-xO2

被引：2

作者：

Ji, Yu ^{[1
,2
]}

Wang, Huaixiang ^{[1
]}

Li, Xiangfei ^{[1
,2
]}

Meng, Ying ^{[1
,2
]}

Wang, Yong ^{[3
]}

Ye, Xubin ^{[1
]}

Liu, Zhehong ^{[1
]}

Wang, Luyao ^{[1
,2
]}

Yang, Junkai ^{[1
,2
]}

Guo, Qinwen ^{[1
,2
]}

Zhuang, Haoyu ^{[1
,2
]}

Shen, Xi ^{[1
]}

Kao, Cheng-Wei ^{[4
]}

Chan, Ting-Shan ^{[4
]}

Hu, Zhiwei ^{[5
]}

Yang, Hua ^{[3
]}

Long, Youwen ^{[1
,2
]}

Yu, Richeng ^{[1
,2
,6
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China

[3] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China

[4] Natl Synchrotron Radiat Res Ctr, 101 Hsin Ann Rd, Hsinchu 30076, Taiwan

[5] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

[6] Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2023年 / 327卷

基金：

中国国家自然科学基金;

关键词：

NbxMo1-xO2; Transmission electron microscopy; Crystal structure; Transport and magnetic properties; TRANSITION; DIFFRACTION;

D O I：

10.1016/j.jssc.2023.124285

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We synthesized NbxMo1-xO2 series compounds and determined the structure of each component through x-ray diffraction and selected area electron diffraction techniques. For x=0.05, 0.1, 0.2, they possess room temperature MoO2 monoclinic structure (P21/c); for x=0.25, 0.3, they become to body-centered tetragonal structure (I41/a); for x=0.33, 0.6, 0.65, they further turn to TiO2 rutile-type structure (P42/mnm). Nb0.25Mo0.75O2 has transport and magnetic properties similar to those of NbMoO4 as paramagnetic metal. Moreover, the UV-vis spectra indicate the metallic property of Nb0.05Mo0.95O2, Nb0.25Mo0.75O2, and Nb0.6Mo0.4O2. X-ray absorption spectra at the Mo-L3 and Nb-L3 edges present Mo4+/Nb4+ and Mo4+/Nb5+ valence state for Nb0.25Mo0.75O2 and Nb0.05Mo0.95O2, respectively. This means the latter can be descripted as Nb0.05Mo0.95O2+& delta; with & delta; = 0.025.

引用

页数：5

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