5 papers
Glass-like anomalies and unconventional thermoelectric transport in chimney ladder crystals
Srinivas V. Mandyam, Weicen Dong, Xiaoxian Yan +13
Nowotny chimney ladder (NCL) crystals present physical properties in between the contrasting paradigms of ideal crystal and amorphous solid, making them promising candidates for th…
Topological Magnetic Phases and Magnon-Phonon Hybridization in the Presence of Strong Dzyaloshinskii-Moriya Interaction
Weicen Dong, Haoxin Wang, Matteo Baggioli +1
In recent years, the interplay between quantum magnetism and topology has attracted growing interest, both for its fundamental importance and its technological potential. Topologic…
Revealing the Geometrical and Vibrational Properties of the Defects Driving the Boson Peak
Shivam Mahajan, Darryl Seow Yang Han, Cunyuan Jiang +2
In amorphous solids, the vibrational density of states shows an excess of modes over the Debye model, known as the boson peak, whose origin remains unclear. Studies suggest a link…
Designing atomic-scale resistive circuits in topological insulators through vacancy-induced localized modes
Cunyuan Jiang, Weicen Dong, Matteo Baggioli
We demonstrate that vacancies can induce topologically protected localized electronic excitations within the bulk of a topological insulator, and when sufficiently close, give rise…
Non-Hermitian wave-packet dynamics and its realization within a non-Hermitian chiral cavity
Weicen Dong, Qing-Dong Jiang, Matteo Baggioli
Topological wave-packet dynamics provide a powerful framework for studying quantum transport in topological materials. However, extending this approach to non-Hermitian quantum sys…