Scholarlink

<p>Here, we present the results of vibrating wire experiments in pure <sup>3</sup>He (without <sup>4</sup>He coverage) in nematic aerogel. We investigated the dependence of splitting of the superfluid transition temperature of <sup>3</sup>He in aerogel on magnetic field. In addition to our previous work, we used a wider range of magnetic fields (up to 31 kOe) and managed to detect both the “upper” and “lower” superfluid transition temperatures. The solid paramagnetic <sup>3</sup>He layer on the aerogel strands activates the magnetic scattering channel. According to theory, it should result in linear splitting at high (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\( \geqslant 20\)</EquationSource> <!--JETPLet2560803Dmitriev-m1--> </InlineEquation> kOe) fields, while at lower fields the splitting is expected to be nonlinear. We were able to observe this nonlinearity, but we have a discrepancy with theoretical predictions regarding the range of fields where nonlinearity occurs. Possible reasons for this are discussed.</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

A1–A2 Splitting in Pure 3He in Nematic Aerogel

  • 期刊论文

  • 发表日期：

    2025年9月29日

查看全文
  • V. V. Dmitriev,
  • M. S. Kutuzov,
  • D. V. Petrova,
  • A. A. Soldatov,
  • A. N. Yudin

摘要

Here, we present the results of vibrating wire experiments in pure 3He (without 4He coverage) in nematic aerogel. We investigated the dependence of splitting of the superfluid transition temperature of 3He in aerogel on magnetic field. In addition to our previous work, we used a wider range of magnetic fields (up to 31 kOe) and managed to detect both the “upper” and “lower” superfluid transition temperatures. The solid paramagnetic 3He layer on the aerogel strands activates the magnetic scattering channel. According to theory, it should result in linear splitting at high ( \( \geqslant 20\) kOe) fields, while at lower fields the splitting is expected to be nonlinear. We were able to observe this nonlinearity, but we have a discrepancy with theoretical predictions regarding the range of fields where nonlinearity occurs. Possible reasons for this are discussed.