Scholarlink

<p>A series of La<sub>3-<i>x</i></sub>Tb<sub><i>x</i></sub>Ni<sub>2</sub>O<sub>7-δ</sub> samples have been synthesized for the first time, and the effects of Tb doping in La<sub>3</sub>Ni<sub>2</sub>O<sub>7-δ</sub> are investigated through a comprehensive investigation on the structural parameters, electrical transport, and magnetic properties of the La<sub>3-<i>x</i></sub>Tb<sub><i>x</i></sub>Ni<sub>2</sub>O<sub>7-δ</sub> samples. Novel magnetic ordered state has been observed both in the as-prepared La<sub>3-<i>x</i></sub>Tb<sub><i>x</i></sub>Ni<sub>2</sub>O<sub>7-δ</sub> compounds and in the samples after high oxygen pressure annealing. The high oxygen pressure annealing results in substantial enhancement of the oxygen content and the increase of nominal valence state of Ni in the La<sub>3-<i>x</i></sub>Tb<sub><i>x</i></sub>Ni<sub>2</sub>O<sub>7-δ</sub> samples, leading to an enhanced conductivity. The present work could contribute to the exploration of possible ambient pressure superconductivity in doped La<sub>3</sub>Ni<sub>2</sub>O<sub>7-δ</sub> systems.</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

Magnetic Ordered State and Enhanced Conductivity in La3-xTbxNi2O7−δ with High Oxygen Pressure Annealing

  • 期刊论文

  • 发表日期：

    2025年5月22日

查看全文
  • Keke Jiao,
  • Rui Niu,
  • Weili Zhen,
  • Huixin Xu,
  • Wanli Zhu,
  • Li Zheng,
  • Yongliang Qin,
  • Changjin Zhang

摘要

A series of La3-xTbxNi2O7-δ samples have been synthesized for the first time, and the effects of Tb doping in La3Ni2O7-δ are investigated through a comprehensive investigation on the structural parameters, electrical transport, and magnetic properties of the La3-xTbxNi2O7-δ samples. Novel magnetic ordered state has been observed both in the as-prepared La3-xTbxNi2O7-δ compounds and in the samples after high oxygen pressure annealing. The high oxygen pressure annealing results in substantial enhancement of the oxygen content and the increase of nominal valence state of Ni in the La3-xTbxNi2O7-δ samples, leading to an enhanced conductivity. The present work could contribute to the exploration of possible ambient pressure superconductivity in doped La3Ni2O7-δ systems.