Hubei Engineering Research Center of Weak Magnetic-Field Detection College of Science China Three Gorges University Yichang 443002 China;
Hubei Engineering Research Center of Weak Magnetic-Field Detection College of Science China Three Gorges University Yichang 443002 China;
Hubei Engineering Research Center of Weak Magnetic-Field Detection College of Science China Three Gorges University Yichang 443002 China;
Key Laboratory of Advanced Materials (MOE) School of Materials Science and Engineering Tsinghua University Beijing 100084 China;
Hubei Engineering Research Center of Weak Magnetic-Field Detection College of Science China Three Gorges University Yichang 443002 China;