Article(id=1322942787225793475, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942780003201932, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210135, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1613577600000, receivedDateStr=2021-02-18, revisedDate=1621872000000, revisedDateStr=2021-05-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343739562, onlineDateStr=2026-10-30, pubDate=1632067200000, pubDateStr=2021-09-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343739562, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343739562, creator=13701087609, updateTime=1793343739562, updator=13701087609, issue=Issue{id=1322942780003201932, tenantId=1146029695717560320, journalId=1263187385517883426, year='2021', volume='49', issue='9', pageStart='1785', pageEnd='2044', issueExtLink='null', onlineDate='null', pubDate='1632067200000', pubDateStr='2021-09-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343737841, creator='13701087609', updateTime=1793345873558, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322951737916665918, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942780003201932, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322951737916665919, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1322942780003201932, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1952, endPage=1956, ext={EN=ArticleExt(id=1322942787427120068, articleId=1322942787225793475, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Electrical Transport Properties of Fe3O4 Nano-powders Under High Pressure, columnId=1319726165087077079, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Article, runingTitle=null, highlight=null, articleAbstract=

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.

, authors=Ningning SU, Xiaoqian WU, Han GAO, Jingjing JIN, authorsList=Ningning SU, Xiaoqian WU, Han GAO, Jingjing JIN, authorCompany=null, correspAuthors=null, authorNote=

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

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利用高压X射线衍射和高压原位Hall效应方法研究了高压下Fe3O4纳米粉的结构和电输运性质的变化。研究结果表明:在17.2 GPa时,Fe3O4纳米粉发生了从反尖晶石相到高压相的结构相变。Fe3O4纳米粉的电阻率随压力的增加而逐渐减小,但在6.0 GPa处发生了明显的不连续变化,此不连续变化是由压致半金属到金属的相变导致的。金属化相变前,电阻率减小是由于载流子浓度的快速增大。金属化相变后,载流子浓度增长变缓,直到11.0 GPa时趋于饱和。11.0 GPa之后,由于电子-声子的耦合常量随压力增加而减小,散射减小,此时载流子迁移率的增大成为电阻率减小的主要因素。

, authors=苏宁宁, 武晓倩, 高函, 靳晶晶, authorsList=苏宁宁, 武晓倩, 高函, 靳晶晶, authorCompany=null, correspAuthors=null, authorNote=

苏宁宁(1983—),女,博士,讲师。

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高压下Fe3O4纳米粉的电输运性质
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苏宁宁 , 武晓倩 , 高函 , 靳晶晶
硅酸盐学报 | 研究论文 2021,49(9): 1952-1956
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硅酸盐学报 |研究论文 2021 , 49 (9) : 1952 -1956
高压下Fe3O4纳米粉的电输运性质
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苏宁宁 , 武晓倩, 高函, 靳晶晶
作者信息
  • 中北大学理学院,太原 030051
作者简介:

苏宁宁(1983—),女,博士,讲师。

Electrical Transport Properties of Fe3O4 Nano-powders Under High Pressure
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:

出版时间: 2021-09-20 doi: 10.14062/j.issn.0454-5648.20210135
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利用高压X射线衍射和高压原位Hall效应方法研究了高压下Fe3O4纳米粉的结构和电输运性质的变化。研究结果表明:在17.2 GPa时,Fe3O4纳米粉发生了从反尖晶石相到高压相的结构相变。Fe3O4纳米粉的电阻率随压力的增加而逐渐减小,但在6.0 GPa处发生了明显的不连续变化,此不连续变化是由压致半金属到金属的相变导致的。金属化相变前,电阻率减小是由于载流子浓度的快速增大。金属化相变后,载流子浓度增长变缓,直到11.0 GPa时趋于饱和。11.0 GPa之后,由于电子-声子的耦合常量随压力增加而减小,散射减小,此时载流子迁移率的增大成为电阻率减小的主要因素。

Hall效应  /  磁铁矿  /  电阻率  /  迁移率

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
  • 山西省高等学校科技创新项目(2019L0551号)
  • 中北大学校科研基金(XJJ201827)
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doi: 10.14062/j.issn.0454-5648.20210135
  • 接收时间:2021-02-18
  • 首发时间:2026-10-30
  • 出版时间:2021-09-20
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  • 收稿日期:2021-02-18
  • 修回日期:2021-05-25
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山西省高等学校科技创新项目(2019L0551号)
中北大学校科研基金(XJJ201827)
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    中北大学理学院,太原 030051
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2种不同金属材料的力学参数
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genus
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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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