Role of Synthetic Ferrimagnets in Magnetic Tunnel Junctions from Wave Packet Dynamics

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概要

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• We have theoretically investigated the wave packet dynamics method for the write characteristics of the nanoscale magnetic tunnel junction with synthetic ferrimagnets based on the microscopic quantum electron model. In this study, we have performed numerical simulation of two bands tight binding electron model. In order to take into account the electron--electron correlation, we consider the on-site Coulomb interaction, Hund exchange coupling and finite electric field. In our simulation, we employ the time dependent molecular field approximation. Based on the simulation using wave packets, we have clarified the role of ferrimagnet in the nanoscale magnetic tunnel junction.

• 2012-02-25

著者

• Endoh Tetsuo

  Center For Interdisciplinary Research Tohoku University

• Muraguchi Masakazu

  Center For Interdisciplinary Research Tohoku University

• Arikawa Mitsuhiro

  Center for Spintronics Integrated Systems, Tohoku University, Sendai 980-8577, Japan

• Hatsugai Yasuhiro

  Center for Interdisciplinary Research, Tohoku University, Sendai 980-8578, Japan

• Shiraishi Kenji

  CREST, Japan Science and Technology Agency, Chiyoda, Tokyo 102-0075, Japan

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