A combined system for generating a uniform magnetic field and its application in the investigation of Efimov physics
Yao Rui1, 2, Sun Zhen-Dong1, 2, Zhou Shu-Yu1, †, Wang Ying3, ‡, Wang Yu-Zhu1
       

(color online) (a) Structure and winding details of coils. (b) A sketch of the coils atom chip combined system.