Seminarium Fizyki Materii Skondensowanej

In the search for novel materials' properties, the generation and manipulation of highly entangled quantum states is a grand challenge of solid state research. Amongst the most entangled proposed states are quantum spin liquids. In this context, the exactly solvable Kitaev Z2 spin-liquid model, for which finely tuned anisotropic interactions exactly fractionalize spins into fermionic Majorana spinons and gauge fluxes has activated an enormous amount of interest. Most specially since possible realizations may be achieved -as an example- in octahedral coordinated spin-orbit-coupled 4d5 and 5d5 insulators. However, the low symmetry environment of the known Kitaev materials also allows interactions beyond the Kitaev model that open possible new routes for further exotic excitations.In this talk I will present an overview on how the subtle interplay of spin, (multi-)orbital and lattice degrees of freedom conspire to produce such phases and will discuss materials realizations and our present understanding of such systems. Join Zoom Meetinghttps://us02web.zoom.us/j/83686899432?pwd=RXNtZkhtZFpLazVmMVRFY1BtVlI0Zz09Meeting ID: 836 8689 9432Passcode: cond-matt