Conventional superconductors (S) have a pair of opposite spin electrons (Cooper pair) as their charge carriers. However, spintronics necessarily involves spin polarized charge carriers.

The general pursuit of this research direction is to therefore engineer spin polarised Cooper pairs.

In conventional spintronics, ferromagnets (F) interact through a spacer layer uisng the RKKY interaction, giving rise to GMR. Analogous phenomena has been discovered in F/S/F devices.

The picture above is a cartoon representation of critical current modulation in a ferromagnetic Josephson Junction.

Tunneling spectroscopy of superconductors is a direct measure of the superconducting density of states (DOS.

At the QMD lab, we explore a variety of tunnel junctions where superocnductors are coupled with various hybrid materials. Tunnling spectroscopy of such hybrid structures reveals a wealth of information regarding novel phenomena arising at such hybrid interfaces.

Picure above is a cartoon semiconductor like represenation of conventional BCS like superconducting DOS, in an S/I/S tunnel junction.

The myriad materials and electronic phases available in the world of 2D materials, offers a great variety of alternatives for fabricating and exploring new types of electronic devices.

At the QMD lab, we are interetsted in looking at alternative ways to achieve spintronic devices with Graphene.

Picture above is a that of a real measurement of Shubnikov De-Hass oscillations in a high mobility bilayer Graphene hall bar measured at 0.3K.