SQUID – Superconducting Quantum Interference Device

The MPMS SQUID VSM DC Magnetometer offers you ≤10-8 emu sensitivity with only 4 second data averaging. 

MPMS SQUID       

 

System Specifications

1. Temperature control:

      • operating Range – 1.8 K to 1000 K;

      • cooling rate: 30 K/min (300 K to 10 K stable in 15 min., typical), 10 K/min (10 K to 1.8 K stable in 5 min., typical);  

      • temperature stability – +/- 0.5%;  

      • temperature accuracy – lesser of +/- 1% or 0.5 K;  

      •  sample chamber I.D. – 9 mm.  

2. Magnetic field control:

      • magnetic field range – -70 kOe to +70 kOe;  

      • field uniformity – 0.01% over 4 cm;  

      • field charging rate – 4 Oe/sec to 700 Oe/sec;  

      • field charging resolution – 0.33 Oe;  

      • remanent field – ~5 Oe (typical), when oscillating from full field back to 0.  

3. Magnetization measurements:

      • maximum DC-moment – 10 emu;  

     • sensitivity:  ≤ 2.500 Oe: < 1⋅10-8 emu (with less than 10 sec. averaging), 2.500 Oe: < 8⋅10-8 emu (with less than 10 sec. averaging);  

      • variable drive amplitude – 0.1 to 8 mm (peak).  

4. General System Details:

      • power requirements: 200-230 VAC, 50/60 Hz, 10A Max;  

      • liquid helium usage – 4 liters/day (typical) + 0.05 liters per sample cooldown;  

      • liquid helium capacity – 65 liters;  

      • liquid nitrogen usage – 5 liters/day (typical);  

      • liquid nitrogen capacity – 60 liters;  

      • maximum hold time – 12 days (typical).