Role of synthetic ferrimagnets in magnetic tunnel junctions from wave packet dynamics

Mitsuhiro Arikawa; Masakazu Muraguchi; Yasuhiro Hatsugai; Kenji Shiraishi; Tetsuo Endoh

doi:10.1143/JJAP.51.02BM03

Role of synthetic ferrimagnets in magnetic tunnel junctions from wave packet dynamics

Mitsuhiro Arikawa, Masakazu Muraguchi, Yasuhiro Hatsugai, Kenji Shiraishi, Tetsuo Endoh

ENG - Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	02BM03
Journal	Japanese journal of applied physics
Volume	51
Issue number	2 PART 2
DOIs	https://doi.org/10.1143/JJAP.51.02BM03
Publication status	Published - 2012 Feb 1

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Role of synthetic ferrimagnets in magnetic tunnel junctions from wave packet dynamics",

abstract = "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.",

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AU - Hatsugai, Yasuhiro

AU - Shiraishi, Kenji

AU - Endoh, Tetsuo

PY - 2012/2/1

Y1 - 2012/2/1

N2 - 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.

AB - 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.

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ER -

Role of synthetic ferrimagnets in magnetic tunnel junctions from wave packet dynamics

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