Components Only
mK
atto3DR
atto3DR/mK
Nanopositioners
Double Rotator
in-situ eucentric two-axes sample rotation
turn single solenoid into strong 3D vector magnet
chip carrier socket with non-magnetic pogo pins
quick sample exchange with reliable contacts
resistive encoders for closed-loop operation
program complex rotation schemes
Since split coil magnets are limited to a few Tesla in field strength
(e.g. 9-1-1 T or 5-2-2 T) this makes available a much larger phase
space as compared to conventional vector magnets, where the field
vector is rotated instead. A 12 T single solenoid hence suddenly
offers the full 12 T in 3 dimensions when combined with the atto3DR.
When investigating magnetically anisotropic and low-dimensional
samples, researchers not only want to vary the magnetic field
strength, but also the field direction with respect to the sample.
The atto3DR features two piezo-based rotators, which allow for
rotation around a horizontally fixed axis, and an additional in-plane
axis. This enables a ±90° tilt between sample surface and field,
as well as another ±90° of in-plane rotation. Thus, any relative
orientation between sample and field is accessible with a single
solenoid and a bipolar magnet powersupply via this eucentric
rotation (with both rotator axes intersecting in the field center).
The module comes fully wired and equipped with a convenient
leadless ceramic chip carrier (LCCC) socket with 20 contacts,
making sample exchange a quick and easy task. The module can be
made compatible with almost any dilution refrigerator provided
that the sample space diameter is large enough (typically 50 mm;
customizations on request). The achievable base temperature of the
sample, as well as the thermal anchoring of the rotators to ensure
efficient heat transport of the dissipated energy during rotation
depends on the cryostat used. For typical results, please contact
attocube.