Selected Measurements attoDRY2100
Temperature [ K ] magnetic field [ T ]
9
6
3
0
∆T = 1 mK
1,500
1,495
0 2 4 6 8 10 1, 490
Time [ h ]
301.0
300.0
30 60 90 299. 0
Time [ min ]
σ = 23mK
magnetic field sample temperature
± 2σ
300.8 300.6 300.4 300.2
299.8 299.6 299.4 299.2 sample temperature [ K ]
The perfect dry VTI: 9T at 300 K, excellent temperature stability & field cooling
Investigating samples at variable temperatures and magnetic fields is a common task in physics and materials science. Using the attoDRY2100, a closed-cycle cryostat with superconducting magnet, researchers can easily access the whole phase space of temperature between 1.65 K and 300 K as well as magnetic field, usually-9 Tesla to + 9 Tesla( others on request) without compromises on performance. The cooldown time of an insert is about 3.. 7 hours.
The attoDRY2100 is not only capable of reaching the full magnetic field even at 300 K sample temperature with an excellent temperature stability( 10 mK), but also features the possibility of field cooling a sample. The whole temperature and magnetic field control is automated, accessible via the integrated touchscreen or remotely via LabVIEW or a dll.
In the measurements shown to the left, the attoDRY2100 with an atto3DR transport measurement insert was first set to a target sample temperature of 300 K, and then the magnetic field was ramped up from zero Tesla all the way to the full 9 Tesla. This took about 40 minutes. During this process, the sample temperature was stable to within sigma = 23 mK. At 9 T and 300 K, the temperature stability was even better at sigma = 10 mK over more than 6 hours. Subsequently, the sample was field cooled at 9 T back down to base temperature, which took about 3.5 hours.
10 300 magnetic field [ T ]
8 250
6
4
2 magnetic field sample temperature
200
150
100
50 sample temperature [ K ]
0 0 60 120 180 240 300
Time [ min ]
0 attoDRY
Closed-cycle Cryostats