Scholarlink

<p>We report a discovery of a new antiferromagnet EuAgBi (N-EuAgBi), which crystallizes in hexagonal space group <i>P</i>6<sub>3</sub>/<i>mmc</i> (No. 194) in ZrBeSi-type structure with two Ag atoms occupying the same site. Magnetic susceptibility and specific heat reveal two antiferromagnetic orders of Eu developing at <i>T</i><sub>N1</sub>= 5.4&#xa0;K and <i>T</i><sub>N2</sub>= 4.9&#xa0;K. However, below the antiferromagnetic transition temperature of <i>T</i><sub>N1</sub>, magnetic susceptibility shows an additional phase transition for the <i>ab</i> plane. Two successive magnetic phases in the presence of the magnetic field along the <i>ab</i> plane are observed, which is not observed when magnetic field is applied along the <i>c</i> axis. Those results imply that some modification of band structure induced by Ag atoms are responsible for the appearance of magnetic phases and anisotropy. Therefore, N-EuAgBi is a unique hexagonal structure antiferromagnet with complex crystal structure and field-induced magnetic phase.</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

Anisotropic Magnetic Phase Transition in a New Antiferromagnet Single Crystal of N-EuAgBi

  • 期刊论文

  • 发表日期：

    2026年7月14日

查看全文
  • Congbin Liu,
  • Shishi Ma,
  • Zexiang Liu,
  • Xuechao He,
  • Jiangdong Wang,
  • Sujuan Jin,
  • Hongyan Zhou,
  • Liang Li,
  • Hao Shi,
  • Yongsong Luo,
  • Junbao He

摘要

We report a discovery of a new antiferromagnet EuAgBi (N-EuAgBi), which crystallizes in hexagonal space group P63/mmc (No. 194) in ZrBeSi-type structure with two Ag atoms occupying the same site. Magnetic susceptibility and specific heat reveal two antiferromagnetic orders of Eu developing at TN1= 5.4 K and TN2= 4.9 K. However, below the antiferromagnetic transition temperature of TN1, magnetic susceptibility shows an additional phase transition for the ab plane. Two successive magnetic phases in the presence of the magnetic field along the ab plane are observed, which is not observed when magnetic field is applied along the c axis. Those results imply that some modification of band structure induced by Ag atoms are responsible for the appearance of magnetic phases and anisotropy. Therefore, N-EuAgBi is a unique hexagonal structure antiferromagnet with complex crystal structure and field-induced magnetic phase.