Nanoscale magnetism control via surface and exchange anisotropy for optimized ferrimagnetic hysteresis

Noh S.-H.; Na W.; Jang J.-T.; Lee J.-H.; Lee E.J.; Moon S.H.; Lim Y.; Shin J.-S.; Cheon J.

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Nanoscale magnetism control via surface and exchange anisotropy for optimized ferrimagnetic hysteresis

机译：通过表面和交换各向异性进行纳米级磁控制，以优化亚铁磁滞

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With the aim of controlling nanoscale magnetism, we demonstrate an approach encompassing concepts of surface and exchange anisotropy while reflecting size, shape, and structural hybridization of nanoparticles. We visualize that cube has higher magnetization value than sphere with highest coercivity at 60 nm. Its hybridization into core-shell (CS) structure brings about a 14-fold increase in the coercivity with an exceptional energy conversion of magnetic field into thermal energy of 10600 W/g, the largest reported to date. Such capability of the CS-cube is highly effective for drug resistant cancer cell treatment.

机译：为了控制纳米级磁性，我们展示了一种方法，该方法涵盖了表面和交换各向异性的概念，同时反映了纳米粒子的大小，形状和结构杂交。我们可以看到，立方体的磁化值高于在60 nm处具有最高矫顽力的球。它与核-壳（CS）结构的杂交使矫顽力提高了14倍，其中磁场转化为热能的能量转换异常出色，达到10600 W / g，是迄今为止最大的。 CS-cube的这种功能对于耐药性癌细胞治疗非常有效。

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《Nano letters》 |2012年第7期|共6页
作者
Noh S.-H.; Na W.; Jang J.-T.; Lee J.-H.; Lee E.J.; Moon S.H.; Lim Y.; Shin J.-S.; Cheon J.;
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原文格式 PDF
正文语种 eng
中图分类特种结构材料;
关键词
core?shell structure; cube nanoparticle; exchange coupling; hyperthermia; magnetic anisotropy; Magnetism;

机译：核-壳结构;立方纳米粒子;交换耦合;高温;磁各向异性;磁性;

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专利

1. Nanoscale magnetism control via surface and exchange anisotropy for optimized ferrimagnetic hysteresis [J] . Noh S.-H., Na W., Jang J.-T., Nano letters . 2012,第7期

机译：通过表面和交换各向异性进行纳米级磁控制，以优化亚铁磁滞
2. Surface-Engineered MXenes: Electric Field Control of Magnetism and Enhanced Magnetic Anisotropy [J] . Frey Nathan C., Bandyopadhyay Arkamita, Kumar Hemant, ACS nano . 2019,第3期

机译：表面设计的MxENES：磁场控制和增强磁各向异性
3. Optimized GMI Response of Co-Based Amorphous Glass-Coated Microwires by Direct Control Over the Magnetoelastic Anisotropy From the Surface Region [J] . Chiriac H., Corodeanu S., Tibu M., IEEE Transactions on Magnetics . 2007,第6期

机译：通过直接控制表面区域的磁弹各向异性，优化了钴基非晶玻璃涂层微丝的GMI响应
4. Single-domain particle hysteresis for a Random Anisotropy Ising System with exchange and magnetostatic interactions [C] . Cristian Enachescu, Alexandra Dobrinescu, Alexandra Stancu Joint European Magnetic Symposia . 2010

机译：随机各向异性均衡系统的单结构域粒子滞后，交换和磁静态相互作用
5. Nanoscale magnetism and exchange bias coupling at the antiferromagnetic/ferrimagnetic interface. [D] . Kavich, Dustin W. 2008

机译：反铁磁/亚铁磁界面处的纳米级磁性和交换偏置耦合。
6. Rashba Spin-Orbit Anisotropy and the Electric Field Control of Magnetism [O] . Stewart E. Barnes, Junichi Ieda, Sadamichi Maekawa -1

机译：Rashba自旋轨道各向异性与磁场的电场控制
7. Shape and surface anisotropy effects on the hysteresis of ferrimagnetic nanoparticles [O] . Iglesias, Oscar, Labarta, Amilcar 2003

机译：形状和表面各向异性对亚铁磁滞后的影响纳米粒子

Nanoscale magnetism control via surface and exchange anisotropy for optimized ferrimagnetic hysteresis

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