Optimizing magnetic heating of isolated magnetic nanowires (MNWs) by simulation

被引：2

作者：

Chen, Yicong ^{[1
]}

Harpel, Allison ^{[1
]}

Stadler, Bethanie J. Hills ^{[1
]}

机构：

[1] Univ Minnesota, Dept Elect & Comp Engn, 200 Union St SE, Minneapolis, MN 55455 USA

来源：

AIP ADVANCES | 2022年 / 12卷 / 03期

关键词：

GIANT MAGNETORESISTANCE; GMR; HYPERTHERMIA; SPINTRONICS;

D O I：

10.1063/9.0000335

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Magnetic properties such as coercivity, remanence and saturation magnetization will determine the area enclosed by the hysteresis loop of a magnetic material, which also represents magnetic heating. Nanowarming of cryopreserved organs is a new application for magnetic heating using nanoparticles. In this paper, isolated Ni MNW of different sizes and shapes are studied via micromagnetic simulation to explore the optimization of heating using individual MNW. Ellipsoidal MNWs with small (30nm) diameters turn out to be most promising in heating ability due to their large hysteresis area and their potential to distribute uniformly in an organ that is being heated. In addition to optimized heating, a special switching pattern of magnetic moment was also observed for cylindrical large (200nm) MNW. This special switching pattern can trigger applications such as quantum computing. (C) 2022 Author(s).

引用

页数：5

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