4.6 Article

Low-temperature time-domain terahertz spectroscopy of terbium gallium garnet crystals

期刊

PHYSICAL REVIEW B
卷 87, 期 9, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.094414

关键词

-

资金

  1. European Commission [228673]
  2. EPSRC of the UK [EP/E055087/1]
  3. EPSRC [EP/E055087/1] Funding Source: UKRI
  4. Engineering and Physical Sciences Research Council [EP/E055087/1] Funding Source: researchfish

向作者/读者索取更多资源

We report an experimental observation of high frequency magnetic excitations in terbium gallium garnet crystals using terahertz time-domain spectroscopy. We show that precessional modes of terbium magnetic sublattices can be excited by a magnetic field of a terahertz broadband pulse. We study and discuss the dependence of the observed resonances upon the temperature and the strength and orientation of the bias magnetic field. The behavior of the observed magnetic modes is in agreement with the theory of paramagnetic resonance in the multisublattice system. We also show that the illumination of the crystal with intense optical pulses destroys the magnetic ordering. Our results demonstrate that the time-domain terahertz spectroscopy can be a powerful tool by which to study high frequency properties of dielectric magnetic materials, with perceived extensions to studies in femtomagnetism and magnonics. DOI: 10.1103/PhysRevB.87.094414

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据