PAGE 156
atto3DR
atto3DR
3-dimensional rotor for in-situ operation
The atto3DR double rotation module provides access to the full magnetic field (e.g. 9 T) in all directions relative to the sample surface. Thus,
instead of rotating the magnetic field, the sample can be arbitrarily
oriented with respect to a fixed external magnetic field vector. Featuring an eucentric rotation (i.e. the two axes of rotation intersect in the
center of sample, which is fixed in space), this makes available a much
larger phase space as compared to conventional vector magnets, where
the field vector is rotated instead. The reason is that split coil configurations generally do not achieve such high field values, despite being significantly more expensive. 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.
All parts are non-magnetic, and are compatible with all attoCRYO setups
with a 2” sample space and exchange gas cooling – whether it is a dry
or a liquid setup. The atto3DR allows 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.
1
9
5
8
6
7
01 LT and HV compatible feedthroughs
02 probe station insert
2
03 superconducting magnet (optional)
04 attoDRY1100 cryostat (optional)
3
05 Titanium housing
06 rotator
4
07 rotator
08 chip carrier mount incl. 20 non-magnetic pogo pins
09 sample on leadless ceramic chip carrier (LCCC)
Schematic drawing of the low temperature atto3DR
and the attoDRY1100 cryostat (optional)