Miniature quad-channel spin-exchange relaxation-free magnetometer for magnetoencephalography
Li Jian-Jun
1, 2
, Du Peng-Cheng
1, 2
, Fu Ji-Qing
3
, Wang Xu-Tong
1, 4
, Zhou Qing
4
, Wang Ru-Quan
1, 2, ‡
Structure of the heater.
