Increase in Zero-Field Conductivity and Low-Field Magnetoresistance by Proton Irradiated Defects in La0.67Sr0.33MnO3 Films

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概要

• 論文の詳細を見る

• The effects of uniform structure defects produced by irradiation with 1.7 and 3 MeV protons on the electrical conductivity and low-field magnetoresistance (LFMR) of La0.67Sr0.33MnO3 (00l) films were investigated. The irradiation of heavy ions, such as Ar+ ions, usually creates defects, resulting in a decrease in the conductivity by defect scattering and an increase in the magnetoresistance by spin distortion. In the present study, the irradiation of light ions, such as protons, created low density point defects, resulting in structural and spin disorders, and an increase in the magnetoresistance. In contrast to the heavy-ion irradiation experiment, the conductivity markedly increased by more than two orders of magnitude.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2005-04-15

著者

• Ou Min-nan

  Department Of Physics National Sun Yat-sen University

• Wu Mei-fang

  Department Of Physics National Sun Yat-sen University

• Hong Meng-tsong

  Department Of Electrical Engineering National Sun Yat-sen University

• Chou Hsiung

  Department Of Physics National Sun Yat-sen University

• TSAI Min-Hsiung

  Department of Physics, National Sun Yat-Sen University

• Sun Shih-jye

  Department Of Applied Physics National University Of Kaohsiung

• Yu Yueh-chung

  Institute Of Physics Academia Sinica

• Chou Hsiung

  Department of Physics, National Sun Yat-Sen University, Kaohsiung, Taiwan 804, R.O.C.

• Wu Mei-Fang

  Department of Physics, National Sun Yat-Sen University, Kaohsiung, Taiwan 804, R.O.C.

• Hong Meng-Tsong

  Department of Electrical Engineering, Cheng Shu Institute of Technology, Kaohsiung, Taiwan 833, R.O.C.

• Tsai Min-Hsiung

  Department of Physics, National Sun Yat-Sen University, Kaohsiung, Taiwan 804, R.O.C.

• Ou Min-Nan

  Department of Physics, National Sun Yat-Sen University, Kaohsiung, Taiwan 804, R.O.C.

• Yu Yueh-Chung

  Institute of Physics, Academia Sinica, Taipei, Taiwan 115, R.O.C.

• Sun Shih-Jye

  Department of Applied Physics, National University of Kaohsiung, Chiayi, Taiwan 811, R.O.C.

関連論文

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• The Thermal Conversion Efficiency in YBa_2Cu_3O_Microbridges for Optical Detection
• Thermal Coupling Effect on the AC Thermal Signal and DC Characteristics of High-Temperature Superconducting Bolometers
• Increase in Zero-Field Conductivity and Low-Field Magnetoresistance by Proton Irradiated Defects in La_Sr_MnO_3 Films
• Optical Response and Heat Characteristics in Y_1Ba_2Cu_3O_ Microbridges with Different Surface Morphologies
• Growth and Characterization of CeO_2 Films on Sapphire Substrates by Sputtering Process
• Increase in Zero-Field Conductivity and Low-Field Magnetoresistance by Proton Irradiated Defects in La0.67Sr0.33MnO3 Films
• Thermal Coupling Effect on the AC Thermal Signal and DC Characteristics of High-Temperature Superconducting Bolometers

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