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An in Situ Electrical Conductivity Measurement System in Diamond Anvil Cell
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Ming LI1, 2, Jie YANG3, Wu-Ming YANG1, Hui-Xin WANG1, Li-Xin LI1, Chun-Xiao GAO2
Chinese Journal of High Pressure Physics | 2012, 26(1) : 27 - 32
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Chinese Journal of High Pressure Physics | 2012, 26(1): 27-32
An in Situ Electrical Conductivity Measurement System in Diamond Anvil Cell
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Ming LI1, 2, Jie YANG3, Wu-Ming YANG1, Hui-Xin WANG1, Li-Xin LI1, Chun-Xiao GAO2
Affiliations
  • 1.Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, China
  • 2.National Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
  • 3.Fundamental Department, Aviation University of Air Force, Changchun 130012, China
Published: 2012-02-15
Outline
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In situ resistance measurement in a diamond anvil cell under high pressure and high temperature will be restricted by the thermal insulation. If the ordinary powder heat insulating material is used, it is difficult to introduce the electrode and measure resistance accurately. Here the in situ resistance measurement under high pressure and high temperature is performed successfully using a sputtered alumina film coated onto the surface of the top anvil plate as an insulation layer and a sputtered molybdenum film used as an electrode. With this device, the electrical conductivity of iron magnesium silicate [(Mg0.875, Fe0.125)2SiO4] under 31-35 GPa and 1 500-3 400 K is obtained. It is found that the activation energy increases with pressure, and the activation volume and activation energy are significantly reduced compared to that under the pressure and temperature lower than 15 GPa and 1 200 K.

diamond anvil cell  /  high temperature and high pressure  /  electrical conductivity  /  activation energy
李明, 杨洁, 杨伍明, 王会新, 李立新, 高春晓. 金刚石对顶砧原位电导率测量系统. 高压物理学报, 2012 , 26 (1) : 27 -32 .
Ming LI, Jie YANG, Wu-Ming YANG, Hui-Xin WANG, Li-Xin LI, Chun-Xiao GAO. An in Situ Electrical Conductivity Measurement System in Diamond Anvil Cell[J]. Chinese Journal of High Pressure Physics, 2012 , 26 (1) : 27 -32 .
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Article Info
  • Receive Date：2010-07-07
  • Online Date：2026-11-05
  • Published：2012-02-15
Article Data
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History
  • Received：2010-07-07
  • Revised：2011-01-06
Funding
Affiliations
    1.Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000, China
    2.National Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
    3.Fundamental Department, Aviation University of Air Force, Changchun 130012, 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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