This device was optimised for critical current measurements along two different crystallographic directions. The small cross-section at the constriction of the devices leads to a locally enhanced current density driving the device critical. On the other hand large current contacts reduce the contact resistance and minimise self-heating at the contact injections.
A droplet of Ag epoxy is oxygen plasma treated which turns it into a surreal landscape that resembles a rough sea.
What would be impossible to fabricate with conventional techniques is easily doable with a FIB. Here we structured a semi-circle into a lamella to measure the angle dependent transport in CeIrIn5.
A micrometer sized halfpipe made of glue.
This piece of single crystal NbP was structured into a device where 3 Hall bars can be measured simultaneously. The current flows along the green path, while the Hall voltage is measured along the c-axis (blue contacts) or a-axis (pink contact).
Meet Red Robin. Our newest 16T rotator probe for resonant magnetometry and transport measurements