Synthesis,disorder and Ising anisotropy in a new spin liquid candidate PrMgAl_(11)O_(19)  

作　　者：Yantao Cao Huanpeng Bu Zhendong Fu Jinkui Zhao Jason S Gardner Zhongwen Ouyang Zhaoming Tian Zhiwei Li Hanjie Guo 

机构地区：[1]Key Lab for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,Lanzhou 730000,People’s Republic of China [2]Songshan Lake Materials Laboratory,Dongguan,Guangdong 523808,People’s Republic of China [3]Institute of Physics,Chinese Academy of Sciences,Beijing 100190,People’s Republic of China [4]Materials Science and Technology Division,Oak Ridge National Laboratory,Oak Ridge,TN 37831,United States of America [5]School of Physics and Wuhan National High Magnetic Field Center,Huazhong University of Science and Technology,Wuhan 430074,People’s Republic of China

出　　处：《Materials Futures》2024年第3期148-156,共9页材料展望（英文）

基　　金：funded by the Guangdong Basic and Applied Basic Research Foundation(Grant No.2022B1515120020);the NSF of China with Grant Nos.12004270 and 11874158;supported by the Laboratory Directed Research and Development(LDRD)program of Oak Ridge National Laboratory,managed by UT-Battelle,LLC for the U.S.Department of Energy.

摘　　要：Here we report the successful synthesis of large single crystals of triangular frustrated PrMgAl_(11)O_(19)using the optical floating zone technique.Single crystal x-ray diffraction(XRD)measurements unveiled the presence of quenched disorder within the mirror plane,specifically~7%of Pr ions deviating from the ideal 2d site towards the 6h site.Magnetic susceptibility measurements revealed an Ising anisotropy with the c-axis being the easy axis.Despite a large spin–spin interaction that develops below~10 K and considerable site disorder,the spins do not order or freeze down to at least 50 mK.The availability of large single crystals offers a distinct opportunity to investigate the exotic magnetic state on a triangular lattice with an easy axis out of the plane.

关 键 词：spin liquid DISORDER FRUSTRATION triangular lattice Ising anisotropy 

分 类 号：TB3[一般工业技术—材料科学与工程]