TY - JOUR
T1 - Model of inter-cell interference phenomenon in 10nm magnetic tunnel junction with perpendicular anisotropy array due to oscillatory stray field from neighboring cells
AU - Ohuchida, Satoshi
AU - Endoh, Tetsuo
N1 - Funding Information:
This work has been supported by a grant from “Three-Dimensional Integrated Circuits Technology Based on Vertical BC-MOSFET and Its Advanced Application Exploration” (Research Director: Professor Tetsuo Endoh, Program Manager: Toru Masaoka) of “Accelerated Innovation Research Initiative Turning Top Science and Ideas into High-Impact Values (ACCEL)” under the Japan Science and Technology Agency (JST) Grant Number JPMJAC1301. The program on Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA) from JST.
Publisher Copyright:
© 2018 The Japan Society of Applied Physics.
PY - 2018/6
Y1 - 2018/6
N2 - In this paper, we propose a new model of inter-cell interference phenomenon in a 10nm magnetic tunnel junction with perpendicular anisotropy (p-MTJ) array and investigated the interference effect between a program cell and unselected cells due to the oscillatory stray field from neighboring cells by Landau-Lifshitz-Gilbert micromagnetic simulation. We found that interference brings about a switching delay in a program cell and excitation of magnetization precession in unselected cells even when no programing current passes through. The origin of interference is ferromagnetic resonance between neighboring cells. During the interference period, the precession frequency of the program cell is 20.8GHz, which synchronizes with that of the theoretical precession frequency f = γHeff in unselected cells. The disturbance strength of unselected cells decreased to be inversely proportional to the cube of the distance from the program cell, which is in good agreement with the dependence of stray field on the distance from the program cell calculated by the dipole approximation method.
AB - In this paper, we propose a new model of inter-cell interference phenomenon in a 10nm magnetic tunnel junction with perpendicular anisotropy (p-MTJ) array and investigated the interference effect between a program cell and unselected cells due to the oscillatory stray field from neighboring cells by Landau-Lifshitz-Gilbert micromagnetic simulation. We found that interference brings about a switching delay in a program cell and excitation of magnetization precession in unselected cells even when no programing current passes through. The origin of interference is ferromagnetic resonance between neighboring cells. During the interference period, the precession frequency of the program cell is 20.8GHz, which synchronizes with that of the theoretical precession frequency f = γHeff in unselected cells. The disturbance strength of unselected cells decreased to be inversely proportional to the cube of the distance from the program cell, which is in good agreement with the dependence of stray field on the distance from the program cell calculated by the dipole approximation method.
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U2 - 10.7567/JJAP.57.063002
DO - 10.7567/JJAP.57.063002
M3 - Article
AN - SCOPUS:85047894382
VL - 57
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 6
M1 - 063002
ER -