Université de Fribourg

Uniaxial strain-induced phase transition in the 2D topological semimetal IrTe2

Nicholson, Christopher W. ; Rumo, Maxime ; Pulkkinen, Aki ; Kremer, Geoffroy ; Salzmann, Björn ; Mottas, Marie-Laure ; Hildebrand, Baptiste ; Jaouen, Thomas ; Kim, Timur K. ; Mukherjee, Saumya ; Ma, KeYuan ; Muntwiler, Matthias ; von Rohr, Fabian O. ; Cacho, Cephise ; Monney, Claude

In: Communications Materials, 2021, vol. 2, no. 1, p. 25

Strain is ubiquitous in solid-state materials, but despite its fundamental importance and technological relevance, leveraging externally applied strain to gain control over material properties is still in its infancy. In particular, strain control over the diverse phase transitions and topological states in two-dimensional transition metal dichalcogenides remains an open challenge. Here, we...

Université de Fribourg

Coexisting multiple order parameters in single-layer LuMnO3 films

Schneider, Christof W. ; Mukherjee, Saumya ; Shimamoto, Kenta ; Das, Saikat ; Luetkens, Hubertus ; White, Jonathan S. ; Bator, Matthias ; Hu, Yi ; Stahn, Jochen ; Prokscha, Thomas ; Suter, Andreas ; Salman, Zaher ; Kenzelmann, Michel ; Lippert, Thomas ; Niedermayer, Christof

In: Physical Review B, 2016, vol. 94, no. 5, p. 054423

Magnetoelectric multiferroics hold great promise for electrical control of magnetism or magnetic control of ferroelectricity. However, single phase ferroelectric materials with a sizeable ferromagnetic magnetization are rare. Here, we demonstrate that a single- phase orthorhombic LuMnO3 thin film features coexisting magnetic and ferroelectric orders. The temperature dependence of the...