5 papers
Unraveling the symmetry of Al5C3N
Vitalii Shtender, Chin Shen Ong, Pedro Berastegui +6
The high-temperature ceramic compound Al5C3N with promising application usage belongs to the scarcely studied Al-C-N system. It was originally reported as an ordered compound in th…
Structural and magnetic phases of topological kagome metal FeSn under pressure
S. Chattopadhyay, L. Thomarat, C. S. Ong +8
We investigate the pressure-induced evolution of crystal structure and magnetism in the kagome ferromagnet FeSn by combining X-ray diffraction, X-ray Emission Spectroscopy,…
Topological Metal-Insulator Transition within the Ferromagnetic state
Ola Kenji Forslund, Chin Shen Ong, Moritz M. Hirschmann +20
A major challenge in condensed matter physics is integrating topological phenomena with correlated electron physics to leverage both types of states for next-generation quantum dev…
Driving collective current excitations using light: The two-time approach
Chin Shen Ong, Denis Golež, Angel Rubio +2
We identify a distinct transverse collective excitation, which we name the "curron", arising from current-current interactions in a driven quantum metal. Unlike plasmons, which inv…
How quantum selection rules influence the magneto-optical effects of driven, ultrafast magnetization dynamics
Mohamed F. Elhanoty, Olle Eriksson, Chin Shen Ong +1
Ultrafast magnetization dynamics driven by ultrashort pump lasers is typically explained by changes in electronic populations and scattering pathways of excited conduction electron…