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Pressure Effect on Electrical Properties of a Manganate with Nominal Composition La1.0Ca2.0Mn2O7
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Jia-Lin ZHU1, 2, Zhen-Xing LIU1, Ri-Cheng YU1, Feng-Ying LI1, Chang-Qing JIN1
Chinese Journal of High Pressure Physics | 2006, 20(3) : 230 - 236
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Chinese Journal of High Pressure Physics | 2006, 20(3): 230-236
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Pressure Effect on Electrical Properties of a Manganate with Nominal Composition La1.0Ca2.0Mn2O7
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Jia-Lin ZHU1, 2, Zhen-Xing LIU1, Ri-Cheng YU1, Feng-Ying LI1, Chang-Qing JIN1
Affiliations
  • 1.Institute of Physics, Center for Condensed Matter Physics, Beijing High Pressure Research Center, Chinese Academy of Sciences, Beijing 100080, China
  • 2.Beijing Information Technology Institute, Beijing 100101, China

    • ZHU Jia-Lin (1965—), male, Doctor, major in high pressure physics, functional materials and sensor. E-mail:

About Author:

ZHU Jia-Lin (1965—), male, Doctor, major in high pressure physics, functional materials and sensor. E-mail:

Published: 2006-09-05
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Pressure effects on electrical properties of a manganate with nominal composition La1.0Ca2.0Mn2O7, which has a layered perovskite structure as majority phase, have been investigated under hydrostatic pressures up to 1.05 GPa by using a self-clamped CuBe piston-cylinder cell. An abnormal pressure effect was observed. At a pressure of 0.55 GPa, a large pressure resistance effect of ≈40% was observed in a lower temperature range of 5~150 K. Besides, it is found that the metal-insulator transition temperature increases at low pressure but deceases with further loading pressure.

layered perovskite manganate  /  electrical resistivity  /  pressure resistance effect
朱嘉林, 刘振兴, 禹日成, 李凤英, 靳常青. 名义成分为La1.0Ca2.0Mn2O7锰氧化物的压阻效应. 高压物理学报, 2006 , 20 (3) : 230 -236 .
Jia-Lin ZHU, Zhen-Xing LIU, Ri-Cheng YU, Feng-Ying LI, Chang-Qing JIN. Pressure Effect on Electrical Properties of a Manganate with Nominal Composition La1.0Ca2.0Mn2O7[J]. Chinese Journal of High Pressure Physics, 2006 , 20 (3) : 230 -236 .
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Funding
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  • National Natural Science Foundation of China(10274099; 50321101; 50332020)
  • State Key Development Program for Basic Research of China(2002CB613301)
References
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Year 2006 volume 20 Issue 3
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Article Info
  • Receive Date：2005-07-06
  • Online Date：2026-11-01
  • Published：2006-09-05
Article Data
Affiliations
History
  • Received：2005-07-06
  • Revised：2005-12-01
Funding
National Natural Science Foundation of China(10274099; 50321101; 50332020)
State Key Development Program for Basic Research of China(2002CB613301)
Affiliations
    1.Institute of Physics, Center for Condensed Matter Physics, Beijing High Pressure Research Center, Chinese Academy of Sciences, Beijing 100080, China
    2.Beijing Information Technology Institute, Beijing 100101, 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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