Electronic Properties of BaPtP with a Noncentrosymmetric Cubic Crystal Structure
Electronic Properties of BaPtP with a Noncentrosymmetric Cubic Crystal Structure
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DOI：
10.7566/jpscp.29.011001
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发表时间：
2019-11
期刊：
影响因子：
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通讯作者：
Y. Okamoto;R. Mizutani;Y. Yamakawa;H. Takatsu;H. Kageyama;K. Takenaka
中科院分区：
文献类型：
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作者：
Y. Okamoto;R. Mizutani;Y. Yamakawa;H. Takatsu;H. Kageyama;K. Takenaka
我们报告的合成，电子性质，和电子结构的LaIrSi型BaPtP与非中心对称的立方晶体结构。多晶样品的电阻率和热容数据表明BaPtP是一种金属，这进一步得到了第一性原理计算的支持。BaPtP的多晶样品由于超导转变而在0.2K以下显示出零电阻率。第一性原理计算结果表明，BaPtP在费米能级附近的自旋劈裂较大。这些结果表明，BaPtP可能表现出有趣的物理性质所造成的Pt原子中的5d电子的强自旋轨道耦合。
We report the synthesis, electronic properties, and electronic structure of LaIrSi-type BaPtP with a noncentrosymmetric cubic crystal structure. Electrical resistivity and heat capacity data taken by using polycrystalline samples indicated that BaPtP is a metal, which was further supported by first principles calculations. A polycrystalline sample of BaPtP showed a zero resistivity below 0.2 K due to the superconducting transition. The first principles calculation results indicated that the spin splitting at around the Fermi energy is large in BaPtP. These results suggest that BaPtP is likely to exhibit interesting physical properties caused by a strong spin-orbit coupling of 5d electrons in the Pt atoms.