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Structure Evolution and Transport Properties of La2-xSmxCuO4 at High Pressure
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Yun-Long WU1, 2, Chun-Mei SONG1, 3, Yu-Feng XIONG4, Lai-Feng LI1
Chinese Journal of High Pressure Physics | 2006, 20(4) : 415 - 420
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Chinese Journal of High Pressure Physics | 2006, 20(4): 415-420
Structure Evolution and Transport Properties of La2-xSmxCuO4 at High Pressure
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Yun-Long WU1, 2, Chun-Mei SONG1, 3, Yu-Feng XIONG4, Lai-Feng LI1
Affiliations
  • 1.Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • 2.Graduate School of Chinese Academy of Sciences, Beijing 100039, China
  • 3.Department of Physics, Zunyi Normal College, Zunyi 563002, China
  • 4.National Center for Nanoscience and Technology, Beijing 100080, China
Published: 2006-12-05
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The structure evolution and transport properties of La2-xSmxCuO4 synthesized both at atmosphere pressure and high pressure have been studied. The crystal structure changed from T phase to the T′ phase. Following treatment in high pressure of 6 GPa in 850 ℃, a slight modification in the lattice constants was observed. The results also showed that oxygen pressure tended to stabilize the T structure. The pressure caused the sample density increasing. The high oxygen pressure treatment for the T structure resulted in a drastic decrease of the resistivity at low temperature, indicating a superconductivity with Sm concentration≤0.5.

T phase  /  T′ phase  /  structure evolution  /  high pressure  /  superconductivity
吴云龙, 宋春梅, 熊玉峰, 李来风. 压力及高压增氧对La2-xSmxCuO4结构及输运性质的影响. 高压物理学报, 2006 , 20 (4) : 415 -420 .
Yun-Long WU, Chun-Mei SONG, Yu-Feng XIONG, Lai-Feng LI. Structure Evolution and Transport Properties of La2-xSmxCuO4 at High Pressure[J]. Chinese Journal of High Pressure Physics, 2006 , 20 (4) : 415 -420 .
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Year 2006 volume 20 Issue 4
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Article Info
  • Receive Date：2005-10-18
  • Online Date：2026-11-01
  • Published：2006-12-05
Article Data
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History
  • Received：2005-10-18
  • Revised：2006-01-01
Affiliations
    1.Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China
    2.Graduate School of Chinese Academy of Sciences, Beijing 100039, China
    3.Department of Physics, Zunyi Normal College, Zunyi 563002, China
    4.National Center for Nanoscience and Technology, Beijing 100080, 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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