Magnetic moment measurement
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Range | 1 µemu to 5 emu full scale |
Resolution | 0.005% of full scale with 60% overrange capability |
Accuracy | 2% vs. calibration |
Sensitivity | 10 nemu standard deviation (room temperature operation, 1 s averaging time) |
Stability | ≤10-4/h at constant ambient temperature |
Repeatability | 1% standard deviation (sample undisturbed); 2% standard deviation (sample removed and replaced) |
Gradient field | x-axis coils (0.5 in air gap): 15 Oe/mm, 1.5 Oe/mm, 150 mOe/mm (typical, over 3 ranges)
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Displacement amplitude | Typically in the range of 1 nm to 10 µm |
Transducer probes |
P1 | General purpose, (x-axis, samples up to 4 × 4 × 1 mm), mass ≤50 mg |
P2 | Intermediate, (x-axis, samples up to 5 × 5 × 1 mm), mass ≤50 mg |
P3 | Robust, (x-axis, samples up to 5 × 5 × 2 mm), mass ≤200 mg |
Z1 | Z-axis, (samples up to 4 × 4 × 1 mm), mass ≤100 mg |
Utilities
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Total system cooling water power dissipation | 1.5 kW at 50 or 60 Hz — see list of available recirculating chillers |
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Optional variable temperature cryostat—DISCONTINUED |
Type | Continuous flow (liquid helium) |
Temperature range | 10 K to 473 K |
Temperature accuracy | ±1% of set temperature at ±1 K |
Resolution | 100 mK |
Cryostat cooldown time | 30 min to 10 K |
Sample cooldown time | 2 min to 10 K (cold cryostat) |
Cryostat inside diameter | 6 mm (sample zone) |
Cryostat outside diameter | 11 mm (magnet air gap, 20 mm) |
Temperature sensor | Chromel vs. Au 0.07 atomic % Fe, located approximately 10 mm below sample |
Sensitivity | Standard deviation at 1 s averaging time: 10 to 50 K: <5 µemu; 51 to 100 K: <1 µemu; 101 to 473 K: <50 nemu |
Temperature slew rate | Approximately 5 min full span |