The world-renowned Montana optical thermostat has a new partner! The best product of the low temperature MOKE is introduced in the official product description manual of the famous MOKE manufacturer Durham, UK. The NanoMOKE and the MI optical thermostat's Magnet-optic system can be combined. The user perfectly achieves low temperature MOKE measurements. With Attocube's high-precision shifters and rotary tables, a variety of fixed-point measurements of MOKE can be achieved.
Figure 1 a NanoMOKE and MI thermostat overall system; b, c partial detail map
How to achieve a fairly mature MOKE measurement at room temperature at low temperatures has long been a problem for magnetic researchers. The main problems are as follows: 1. The consumption of liquid helium by the traditional wet thermostat leads to high experimental cost; 2. The vibration of the traditional refrigerator thermostat makes the measured signal-to-noise relatively poor, and accurate or micro-area measurement cannot be performed. 3, the stability of the temperature control of the traditional thermostat is not good, it is difficult to achieve accurate measurement at a specific temperature; 4, the traditional cryostat operation is complicated, making the measurement process extremely cumbersome. MI's ultra-fine liquid-free thermostat perfectly solves the above problems.
Figure 2 a transverse sample holder; b longitudinal sample holder; c different direction with electrode sample holder
First of all, the MI thermostat uses the intelligent variable frequency chiller system to completely get rid of the liquid helium, and the consumption of helium is also very small, which greatly reduces the cost of the low temperature test. Secondly, the vibration peak-to-peak value of the MI thermostat is less than 5 nm. The level has reached the level of room temperature optical experiment; the stability of the temperature of the re-MI thermostat is better than 10mk, which makes the measurement at a specific temperature abnormally stable; finally the MI thermostat is very easy to operate, and the fully intelligent control system can make you The control is arbitrary. System sample replacement is very convenient, the system can be controlled by network, real remote control. In this way, the feasibility and accuracy of the low temperature MOKE have been greatly improved, and the high-precision magnetic and magnetic domain measurement of the micrometer level at low temperature is truly realized. In addition, NanoMOKE offers a wide range of solutions for polar, lateral and longitudinal applications for the Montana sample chamber.
In addition to being paired with MOKE, the MI thermostat introduces a variety of sample stages for magneto-optical systems, allowing the sample to be parallel and perpendicular to the direction of the magnetic field (as shown in Figure 2). The sample holder with electrodes can help users to achieve variable field, temperature change, photoelectric measurement, greatly expanding the function of the thermostat.
Figure 3 a Cryostation-GMW system overall diagram;
b sample cavity partial view; c sample cavity sectional view
Recently, MI and GMW jointly launched a variety of flexible external magnet solutions, making it easier for users to achieve a variety of special experimental measurements, magnetic field strength has also improved, in addition to a variety of permanent magnets and other options to choose from. The flexibility of MI breaks the bottleneck of many traditional low temperature experiments, making low temperature experiments as convenient as room temperature experiments. In addition to magnetic measurements, the MI thermostat has also achieved great success at low temperature Raman, allowing users to easily perform low temperature Raman measurements directly on the MI thermostat using existing high performance spectrometers. In the emerging field of quantum information, the MI thermostat is a major player. At present, the research institutes in the field of quantum information have become the users of the MI thermostat. In particular, the University of Science and Technology of China and Tsinghua University have multiple models of MI thermostats, which have become the top two domestic users. At present, the number of MI thermostats has exceeded 60 in China. The application fields cover quantum information, NV color center, Raman, crystal optics, etc., and work continuously and stably in major laboratories. The MI thermostat has become a versatile, high-precision, ultra-stable, all-dry thermostat.
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