Because of the interplay among various degrees of freedom, including spin, charge, orbital, symmetry, topology and dimensionality, quantum materials offer an exceptional venue for emerging phenomena and applications, in magnetism, superconductivity, interface engineering and quantum information. Precisely due to this interplay, spin provides a unique view and an effective way to probe and control the fascinating properties and emerging phenomena in quantum materials and ultimately for game changing devices.

We aim to understand the spin phenomena in quantum materials and harness their potential for groundbreaking technologies, with a large effect on cutting-edge research of developing novel quantum materials, discovering new spintronic phenomena and exploring their applications for quantum information. 

[1] unconventional magnetic materials

Unconventional magnetic materials, including altermagnets and Kagome magnets, exhibit a variety of intriguing properties due to the existence of special magnetic structure and band structure, which provide a unique platform for spintronic research. We investigate the fascinating quantum phenomena of these systems and the potential for new spintronic devices, especially topological antiferromagnetic spintronics. 

[2] two-dimensional materials and heterostructures

Two-dimensional (2D) materials have a rich category of material choice, with ultra-manipulable property and minimal interface intermixing in their heterostructures, which is ideal for spintronic devices. Even more exciting is the emerging superconductivity and magnetism in these moiré superlattices. The superconductivity may be unconventional, including the prospects of spin-triplet pairing. We probe and manipulate the spin properties by choosing different material combination and the alignment between the constituent materials of a heterostructure.

[3] spin-triplet superconductors 

In superconductors, the two electrons in a Cooper pair can form either a singlet or a triplet. A spin-triplet superconductor has profound connection to topological superconductor, which holds promises for Majorana quasiparticles and quantum computing, and also spin supercurrent. Most superconductors are spin-singlet. Intrinsic spin-triplet superconductors are rare, but there are promising candidates, including β-Bi2Pd, UTe2 and the most recent development of graphene moiré superlattice. We use phase- and spin-sensitive methods to identify and explore spin-triplet superconductors.