Séminaires axe “From nano-to life- sciences”

14h00-14h45 : Pr Ewen BODIO (Laboratoire CEISAM UMR-CNRS 6230 / Nantes Université )

Titre : From Aza-BODIPY to WazaGaY: Toward efficient NIR-emitting OI/PET bimodal probes design.

14h45-15h30 : Dr Célia BONNET (Laboratoire CBM UPR CNRS 4301 / Orléans)

Titre : Cation responsive MRI contrast agents: from rational design to in vivo applications.

Séminaire AXE 1 – Sciences et Matériaux Quantiquesprésenté par : Alexina Ollier

Speaker: Alexina Ollier, Center for Quantum Nanoscience (QNS), Institute for Basic Science (IBS), Seoul, South Korea

Here, we report on imaging the spin texture of triple-Q magnetic order of Co1/3TaS2. The sample
was measured with a low temperature STM (T=6K) under ultra-high vacuum with normal
and spin-polarized tips. The STM images with the normal tip show the triangular lattice of the
sample. The spin-polarized (SP) tip shows an additional symmetry related to the triple-Q
ordering. In addition to that, the SP STM images revealed different spin textures with respect
to the tip-spin orientation. The analysis suggests the presence of a phase difference between the
tip and the triple-Q ordering of the sample. This work gives a new insight into the exploration of
chiral magnetic ordering with topological Hall effect using scanning probe microscopy.