I will tell you the specification of SQUID based magnetometer mentioned by Indian Institute of Science so that you can have idea.

The SQUID based magnetometer of Indian Institute of Science is a fully automated wet (liquid cryogens) helps for measuring the magnetic properties of various materials

Specification
TEMPERATURE CONTROL
a. Lowest temperature: less than 2K; Maximum temperature: more than or equal to 300 K
b. Continuous temperature control through 4.2 K
c. Temperature calibration accuracy: better than ± 1%
d. Continuous Low Temperature Control and Temperature Sweep modes with a slew rate of at least 2 K/min from 2 K to 10 K, and a rate of at least 10 K/min above 10K
e. Temperature stability in the sample space: ±0.5 % or better.
f. Temperature variation in the sample chamber: ±0.2 K or better over a scan length of 6 cm

SUPERCONDUCTING MAGNET
a. Longitudinal field configuration ±7 Tesla or higher.
b. Magnetic field uniformity of ±0.01% over ± 2 cm from centre of detection coil.
c. Field setting resolution of at least 0.2 G in the low field range, and at least 2 G in the high field range.
d. Highly stable, low-noise bi-polar power supply with over voltage protection.
e. Control modes: Persistent and Driven (Oscillating, No Overshoot and fast settle).
f. Magnet reset option to quench the field coil. The time required to re-cool the magnet should be less than 5 minutes

DC MAGNETIC MEASUREMENT OPTION
a. Measurement range of minimum ± 5 emu
b. Continuous raw data capture
c. Sensitivity of the order of 10-8 emu at low fields.

AC SUSCEPTIBILITY
a. Temperature Range: at least 2 K – 300 K.
b. AC Frequency Range: at least 0.1 Hz – 500 Hz
c. AC Field Amplitude Range: at least 100 mOe to 5 Oe
d. 5 x 10 -8 emu in the absence of DC field and about 1 x 10-7 emu with DC fields up to 7 T
e. Accurate resolution of real and imaginary parts of the susceptibility

Ultra Low field Measurement option
a. Additional coil based system to enable residual fields less than 0.05 G over a scan length of 4 cm
b. Magnet reset option to quench the field coil. The time required to re-cool the magnet should be less than 5 minutes

Low field measurement/profiling option
a. A low field sensor with a sensitivity of about ± 0.03 G
b. A shielded chamber for accurate zero-setting of the field sensor

High Temperature Attachment
a. Temperature range from room temperature to at least 800 K.
b. Sample tube inner diameter > 3mm
c. Temperature accuracy better than ± 1K
d. Temperature uniformity better than ± 1K over a 4 cm scan length

Low Temperature Attachment
e. To extend temperature range of magnetic measurements to below 2 K and at least down to 0.35 K.
f. Sample tube inner diameter > 2-3mm
g. Temperature accuracy better than ± 5 mK
h. Temperature uniformity better than ± 1-2 mK over a 4 cm scan length

Environmental Magnetic Shield
a. Environmental magnetic shielding to cancel out external magnetic fields.

Fiber Optic Sample Probe
a. A sample holder which permits the sample to be illuminated during the course of magnetic measurements
b. Compatibility with the DC magnetization mode, and operable in the temperature range from 2K to 300K, and magnetic fields up to 7 T
c. Accessories required for routine operation.

Compatible Uniaxial and Hydrostatic Pressure cells
a. Uniaxial pressure cell, with a maximum pressure of not less than 500 MPa, and a sample space of not less than 3 mm
b. Hydrostatic pressure cell, with a maximum operating pressure of not less than 1.5 GPa, and a sample space of not less than 2.5 mm.
c. Compatibility with routine DC and AC magnetization measurements.
d. Hydraulic press and all other relevant accessories.

COMPUTER AND SOFWARE
Licensed windows based operating software and State-of-the-art computer control system compatible with and optimized for the application software to run the various measurement options automatically. Also, a heavy duty printer.

VACUUM PUMP AND VACUUM FITTINGS
The supplier should provide vacuum pumps and associated fittings and accessories essential for uninterrupted functioning of the instrument and its various measurements options.

Address:-
Indian Institute of Science
C V Raman Ave, Bengaluru, Karnataka 560012