Quantum Material Control

The MPSD has welcomed two new Humboldt Fellows to the Theory Department. Carlos Mauricio Bustamante and Hang Liu have each been awarded postdoctorate Humboldt Research Fellowships to carry out their own research at the Institute. more

Terahertz light pulses can stabilize ferromagnetism in YTiO₃ at temperatures more than three times its usual transition temperature. Researchers from the Cavalleri group report in Nature that the high-temperature ferromagnetic state persisted for many nanoseconds after the light exposure. more

The electronic properties of MoSe₂ are determined by the bonds of Mo and Se atoms, to which both elements contribute equally. But when exposed to ultraviolet light, the Mo signal clearly shows a signature dominated by collective processes while the Se signal suggests that the electrons act independently. more

How long does it take electrons to ‘dress’ in light and form Floquet bands? Just one single optical cycle is enough, according to a research team involving the Universities of Marburg, Regensburg and MPSD group leader Michael Sentef. Its study has been published in Nature. more

An international research team has demonstrated unambiguously that the bulk crystal Ta₂NiSe₅ is not an excitonic insulator, settling the debate around the microscopic origin of symmetry breaking in the material. more