摘要
Ruddlesden-Popper iridate Sr_(3)Ir_(2)O_(7)is a spin-orbit coupled Mott insulator.Hole doped Sr_(3)Ir_(2)O_(7)provides an ideal platform to study the exotic quantum phenomena that occur near the metal-insulator transition(MIT)region.Rh substitution of Ir is an effective method to induce hole doping into Sr_(3)Ir_(2)O_(7).However,the highest doping level reported in Sr_(3)(Ir_(1-x)Rh_(x))_(2)O_(7)single crystals was only around 3%,which is far from the MIT region.In this paper,we report the successful growth of single crystals of Sr3(Ir_(1-x)Rh_(x))_(2)O_(7)with a doping level of~9%.The samples have been fully characterized,demonstrating the high quality of the single crystals.Transport measurements have been carried out,confirming the tendency of MIT in these samples.The electronic structure has also been examined by angle-resolved photoemission spectroscopy(ARPES)measurements.Our results establish a platform to investigate the heavily hole doped Sr_(3)Ir_(2)O_(7) compound,which also provide new insights into the MIT with hole doping in this material system.
作者
王冰倩
彭舒婷
欧志鹏
王宇晨
Muhammad Waqas
罗洋
魏志远
淮琳崴
沈建昌
缪宇
孙秀鹏
殷月伟
何俊峰
Bingqian Wang;Shuting Peng;Zhipeng Ou;Yuchen Wang;Muhammad Waqas;Yang Luo;Zhiyuan Wei;Linwei Huai;Jianchang Shen;Yu Miao;Xiupeng Sun;Yuewei Yin;Junfeng He(Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics,University of Science and Technology of China,Hefei 230026,China)
基金
supported by the USTC start-up fund
the National Natural Science Foundation of China(Grant Nos.12074358 and 12004363)
the Fundamental Research Funds for the Central Universities(Grant Nos.WK3510000008 and WK2030000035)
the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0302802)
supported by the U.S.Department of Energy,Office of Science,Office of Basic Energy Sciences under Contract No.DEAC02-76SF00515。
