The Chern insulator displays a quantized Hall effect without Landau levels. Theoretically,
this state can be realized by engineering complex next-nearest-neighbour hopping in a …

In strongly correlated materials, quasiparticle excitations can carry fractional quantum
numbers. An intriguing possibility is the formation of fractionalized, charge-neutral fermions …

Experiments on quantum materials have uncovered many interesting quantum phases
ranging from superconductivity to a variety of topological quantum matter including the …

Quantum oscillations (QOs) describe the periodic variation of physical observables as a
function of inverse magnetic field in metals. The Onsager relation connects the basic QO …

Following nearly a century of research, it remains a puzzle that the low-lying excitations of
metals are remarkably well explained by effective single-particle theories of non-interacting …

The quasi-two-dimensional Mott insulator α-RuCl 3 is proximate to the sought-after Kitaev
quantum spin liquid (QSL). In a layer of α-RuCl 3 on graphene, the dominant Kitaev …

Quantum oscillation (QO) measurements constitute a powerful method to measure the Fermi
surface (FS) properties of metals. The observation of QOs at specific frequencies is usually …

Helical edge states in quantum spin Hall (QSH) materials are central building blocks of
topological matter design and engineering. Despite their principal topological protection …

Recently, quantum oscillation of the resistance in insulating monolayer WTe 2 was reported.
An explanation in terms of gap modulation in the hybridized Landau levels of an excitonic …

We demonstrate a mechanism for magnetoresistance oscillations in insulating states of two-
dimensional (2D) materials arising from the interaction of the 2D layer and proximal graphite …