Decreased Energy Gap and Enhanced Conductivity in Zn-Doped Sr2IrO4

• DOI: 10.1007/s10948-018-4852-z
• Publication Date: 2018-10-10T03:55:34Z
• Authors: Yongjian Wang; Liming Yao; Jianming Yao; Wenka Zhu; Changjin Zhang
• Keywords: 0103 physical sciences; 01 natural sciences

The 5d transition metal oxide Sr2IrO4 has attracted much interest in the high-temperature superconductivity community since it highly resembles the cuprate superconductor in crystal and electronic structures. Here, we report on the transport and magnetic properties of Zn-doped Sr2IrO4. It is found that the energy gap of Sr2IrO4 is rapidly decreased with a small amount of Zn doping. Consequently, the electrical conductivity is significantly enhanced. The present work could serve as the prerequisite stage in exploring the possible superconductivity of the Sr2IrO4 compound.