Effects of Randomness on Tunnel Conductance and Magnetoresistance in Ferromagnetic Tunnel Junctions

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概要

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• The effects of randoraaness on tlae ttrnnel condttctance ?rnd tlae turanel naagnetoresistat?ce (TINYER.)2lUC sttrdied theoreticstlly f'or ferrouaaagtaetic ttrnnel jtrtactions. An etaaplaasis is ptrt 011 a couaabinedef['ects of the interfacial randotnruess ?tnd the electrotaic strtrcttrres of' the tnet;rllic leads. Thecotadtrctatace is f'oruaatrlated toy tstking tlae r?rzadoraaness ituto accotrttt srt T : 0 K arad zero Toiaslinaait by trsizag tlae Ktrbo f'orraatrla atud tlae cohereuat potential approxiraaation Nut a single orbitaltiglut-binding naaodel. T1?e xzertex correctiotn to tlae coradtrctance is calctr1?rted so as to satisf'y tlaecurrent conservation laxv. Tlae tttnnel condtrctance atud tlae TN4R witla and witlaotrt ratudomtaessare f'outad to depend era the Ferta?i etuerg3x Hp srtad the slaape of' tlae Fertni strrf'ace. Tlae TllNzIR isarf['ected by tlae randouaaness in strcla a xvay tlaat it C2111 be increased by flue randotaaraess XVII(1211 Epis close to tlae batad bottotau, xvluile it is decreased xvlaera Ep is laigher. Tlae variation of' flue T.NIRwitla the barrier l?ei'lat and thicktaess is also c;t1ctrJatted,

• 社団法人日本物理学会の論文
• 1999-05-15

著者

• Inoue Jun-ichiro

  Department Of Applied Physics Nagoya University

• MAEKAWA Sadamichi

  Institute for Materials Research,Tohoku University

• Inoue J

  Nagoya Univ. Nagoya

• Inoue J

  Department Of Basic Science University Of Tokyo:core Research For Evolutional Science And Technology

• ITOH Hiroyoshi

  Department of Quantum Engineering, Nagoya University

• ITOH Hiroto

  Department of Physics, Chuo University

• Itoh H

  Department Of Physics Chuo University

• Itoh H

  Nagoya Univ. Nagoya‐shi

• Itoh Hiroyoshi

  Department Of Applied Physics Nagoya University

• Shibata A

  Department Of Endocrinology And Metabolism Division Of Molecular And Cellular Adaptation Research In

• SHIBATA Akinori

  Department of Applied Physics,Nagoya University

• KUMAZAKI Takao

  Department of Applied Physics,Nagoya University

• Kumazaki Takao

  Department Of Applied Physics Nagoya University

• Shibata Akinori

  Department Of Applied Physics Nagoya University

• Inoue Junichiro

  Department Of Applied Physics Faculty Of Engineering Nagoya University

• Maekawa Sadamichi

  Institute For Materials Research Tohoku University

• Maekawa Sadamichi

  Institute For Iron And Other Metals Tohoku University

• Inoue Junichiro

  Department of Applied Physics, Nagoya University

• Ito Hiroyoshi

  Department of Quantum Engineering,Nagoya University

• Inoue Jun-ichiro

  Department of Applied Physics, Nagoya University

• INOUE Jun-Ichiro

  Department of Applies Physics, Nagoya University

• Ito Hiroyoshi

  Department of Pathology, Kinki University School of Medicine

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