论文标题
化学计量学的电子和磁性特性$ _ {2} $
Electronic and magnetic properties of stoichiometric CeAuBi$_{2}$
论文作者
论文摘要
我们报告了化学计量学Ceaubi $ _ {2} $单晶的电子和磁性。在环境压力下，ceaubi $ _ {2} $在19 k的néel温度（$ t_ {n} $）以下订购了反铁磁。在低温下，通过平行于$ c $轴的场的应用诱导了几种元磁过渡，这表明Ceaubi $ _ {2} $的磁结构随着场的函数而变化。在低温下，线性阳性磁力固定可能表明在费米水平附近存在带横梁。最后，外部压力的施加有利于抗铁磁状态，表明4 $ f $电子变得更加本地化。
We report the electronic and magnetic properties of stoichiometric CeAuBi$_{2}$ single crystals. At ambient pressure, CeAuBi$_{2}$ orders antiferromagnetically below a Néel temperature ($T_{N}$) of 19 K. Neutron diffraction experiments revealed an antiferromagnetic propagation vector $\hatτ = [0, 0, 1/2]$, which doubles the paramagnetic unit cell along the $c$-axis. At low temperatures several metamagnetic transitions are induced by the application of fields parallel to the $c$-axis, suggesting that the magnetic structure of CeAuBi$_{2}$ changes as a function of field. At low temperatures, a linear positive magnetoresistance may indicate the presence of band crossings near the Fermi level. Finally, the application of external pressure favors the antiferromagnetic state, indicating that the 4$f$ electrons become more localized.
