Domain Wall Precession in a Narrow Magnetic Nanowire

被引：0

作者：

Trushin O.S. ^{[1
]}

Barabanova N.I. ^{[1
]}

机构：

[1] Yaroslavl Branch of Valiev Institute of Physics and Technology, Russian Academy of Sciences, Yaroslavl

来源：

Russian Microelectronics | 2021年 / 50卷 / 01期

关键词：

Domain walls;

D O I：

10.1134/S1063739721010091

中图分类号：

学科分类号：

摘要：

Abstract: The dynamics of a transverse domain wall in a narrow magnetic permalloy nanowire in an external field is studied by the method of micromagnetic simulation. It was found that in the limit of a very small nanowire width (less than 40 nm), a precession of the domain wall is observed, accompanied by a change in its chirality. It is shown that the precession frequency increases with an increase in the external field and with an increase in the damping constant and decreases with an increase in the nanowire width. This effect imposes restrictions on the possibility of reducing the width of the nanowire used to create racetrack memory. © 2021, Pleiades Publishing, Ltd.

引用

页码：69 / 73

页数：4

共 7 条

[1]

Klaui M., Vaz C.A.F., Handbook of Magnetism and Advanced Magnetic Materials, (2007)

[2]

Parkin S.S.P., Hayashi M., Thomas L., Magnetic domain wall racetrack memory, Science (Washington, DC, U. S.), 320, pp. 190-194, (2008)

[3]

Allwood D.A., Magnetic domain-wall logic, Science (Washington, DC, U. S.), 309, pp. 1688-1692, (2005)

[4]

McMichael R.D., Donahue M.J., Head to head domain wall structures in thin magnetic strips, IEEE Trans. Magn., 33, pp. 4167-4169, (1997)

[5]

Nakatani Y., Thiaville A., Miltat J., Head-to-head domain walls in soft nano-strips: a refined phase diagram, J. Magn. Magn. Mater., 290-291, pp. 750-753, (2005)

[6]

Trushin O.S., Barabanova N.I., Micromagnetic software package MICROMAG and its applications to study elements of spintronics, Russ. Microelectron., 42, pp. 218-226, (2013)

[7]

Vansteenkiste A., Lellaert J., Dvornik M., Helsen M., Garcia-Sanchez F., van Waeyenberge B., The design and verification of MuMAX3, AIP Adv., 4, (2014)

← 1 →