Scholarlink

Abstract <p>The images of the magnetic domain structure (DS) stray fields were obtained in the basal plane of Nd<sub>2</sub>Fe<sub>14</sub>B and Y<sub>2</sub>(Fe<sub><i>x</i></sub>Co<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11445_2025_8171_Article_IEq1.gif" Format="GIF" Height="11" Rendition="HTML" Resolution="72" Type="Linedraw" Width="25" /> </InlineMediaObject> <EquationSource Format="TEX">\(_{{1-x}}\)</EquationSource> <!--Cryst2560008Sinkevich-m1--> </InlineEquation>)<sub>17</sub> (<i>x</i> = 0.18, 0.41) bulk uniaxial crystal samples at different tip–sample lift heights <i>z</i> using a magnetic force microscope. A method for automated evaluation of magnetic force microscopy (MFM) images is proposed. The average number of extrema per unit length (<i>n</i>) was calculated, <i>n</i>(<i>z</i>) dependences were plotted, and an analytical expression for approximating experimental dependences was derived. The <i>n</i><sub>0</sub> values, related to the <i>z</i> = 0 point, were obtained by approximating experimental data with the analytical expression. The values of the average domain width <i>D</i> and domain wall (DW) energy surface density γ were calculated based on the found <i>n</i><sub>0</sub> values.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Processing and Analysis of Magnetic Force Microscopy Images of Bulk Uniaxial Crystals

  • 期刊论文

  • 发表日期：

    2025年6月1日

查看全文
  • A. I. Sinkevich,
  • E. M. Semenova,
  • G. G. Dunaeva,
  • A. Yu. Karpenkov,
  • M. B. Lyakhova,
  • S. D. Smetannikova

摘要

Abstract

The images of the magnetic domain structure (DS) stray fields were obtained in the basal plane of Nd2Fe14B and Y2(FexCo \(_{{1-x}}\) )17 (x = 0.18, 0.41) bulk uniaxial crystal samples at different tip–sample lift heights z using a magnetic force microscope. A method for automated evaluation of magnetic force microscopy (MFM) images is proposed. The average number of extrema per unit length (n) was calculated, n(z) dependences were plotted, and an analytical expression for approximating experimental dependences was derived. The n0 values, related to the z = 0 point, were obtained by approximating experimental data with the analytical expression. The values of the average domain width D and domain wall (DW) energy surface density γ were calculated based on the found n0 values.