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Electrical Transport Properties of Fe3O4 Nano-powders Under High Pressure
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Ningning SU, Xiaoqian WU, Han GAO, Jingjing JIN
Journal of the Chinese Ceramic Society | 2021, 49(9) : 1952 - 1956
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Journal of the Chinese Ceramic Society | 2021, 49(9): 1952-1956
• Research Article •
Electrical Transport Properties of Fe3O4 Nano-powders Under High Pressure
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Ningning SU, Xiaoqian WU, Han GAO, Jingjing JIN
Affiliations
  • School of Science, North University of China, Taiyuan 030051, China

    • SU Ningning (1983-), female, Ph.D., Lecturer. E-mail:

About Author:

SU Ningning (1983-), female, Ph.D., Lecturer. E-mail:

Published: 2021-09-20 doi: 10.14062/j.issn.0454-5648.20210135
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The structures and electrical transport properties of Fe3O4 nano-powders under high pressure were studied by means of high pressure X-ray diffraction and high pressure in-situ Hall effect measurement. The results indicate that Fe3O4 nano-powders undergoes a structural phase transition from inverse spinel to high-pressure phase at about 17.2 GPa. The discontinuous changes of the resistivity occurred at 6.0 GPa, which is related to the metallization phase transition of Fe3O4 nano-powders. Below 6.0 GPa, the decreasing resistivity is due to the rapid increase of the carrier concentration. Above 6.0 GPa, the carrier concentration increases gently and reaches saturation at 11.0 GPa. Further increasing pressure, the increased carrier mobility is the dominant factor for the decreasing resistivity.

Hall effect  /  magnetite  /  resistivity  /  mobility
苏宁宁, 武晓倩, 高函, 靳晶晶. 高压下Fe3O4纳米粉的电输运性质. 硅酸盐学报, 2021 , 49 (9) : 1952 -1956 . DOI: 10.14062/j.issn.0454-5648.20210135
Ningning SU, Xiaoqian WU, Han GAO, Jingjing JIN. Electrical Transport Properties of Fe3O4 Nano-powders Under High Pressure[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (9) : 1952 -1956 . DOI: 10.14062/j.issn.0454-5648.20210135
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Year 2021 volume 49 Issue 9
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doi: 10.14062/j.issn.0454-5648.20210135
  • Receive Date：2021-02-18
  • Online Date：2026-10-30
  • Published：2021-09-20
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  • Received：2021-02-18
  • Revised：2021-05-25
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    School of Science, North University of China, Taiyuan 030051, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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