Generic role of the Dzyaloshinskii-Moriya interaction in nanocrystalline ferromagnets

被引：2

作者：

Erokhin, Sergey ^{[1
]}

Berkov, Dmitry ^{[1
]}

Michels, Andreas ^{[2
]}

机构：

[1] Gen Numer Res Lab, Kahla Str 4, D-07745 Jena, Germany

[2] Univ Luxembourg, Dept Phys & Mat Sci, 162A Ave Faiencerie, L-1511 Luxembourg, Luxembourg

来源：

NEW JOURNAL OF PHYSICS | 2023年 / 25卷 / 08期

关键词：

Dzyaloshinskii-Moriya interaction; polarized neutron scattering; micromagnetics; nanocrystalline terbium; NEUTRON-SCATTERING; SPIN; SYSTEMS;

D O I：

10.1088/1367-2630/acd65a

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Motivated by recent experimental polarized neutron results, we present a numerical micromagnetic study of the interfacial (intergrain) Dzyaloshinskii-Moriya interaction (DMI) in nanocrystalline terbium. We demonstrate that the DMI-induced spin misalignment between adjacent nanograins is the reason for the formation of the asymmetric positive-negative pattern seen in polarized neutron scattering experiments. Analysis of the remagnetization process suggests the generic impact of the DMI on the macroscopic magnetic parameters of polycrystalline defect-rich materials.

引用

页数：8

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