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DS: Fachverband Dünne Schichten

DS 16: Layer Properties: Electrical, Optical, and Mechanical Properties I

DS 16.2: Vortrag

Montag, 20. März 2017, 17:15–17:30, CHE 91

Synthesis, crystal growth and characterization of less-known vanadium-based TMDC compounds — •Konstantin Nikonov^1,3, Niels Ehlen¹, Boris Senkovskiy¹, Alexander Fedorov^1,2, Nihit Saigal¹, Wouter Jolie¹, Timo Knispel¹, Maria Brekhovskikh³, and Alexander Grueneis¹ — ¹II. Physikalisches Institut, Universitaet zu Koeln, Germany — ²IFW Dresden, Germany — ³IGIC RAS, Moscow, Russia

Layered transition metal dichalcogenides are a very popular class of materials due to vast diversity of their electronic properties and layered structure, which makes it some kind of intermediate between 3D and 2D materials. Their begavior may vary from semiconducting, as in MoS₂, to metallic or semimetallic, as in VSe₂ or ZrSe₂. Various phenomena such as superconductivity and charge dencity waves can be observed in different TMDC under suitable conditions.

Despite long history of research, many of TMDC systems still were not studied by modern methods of solid state physics. Vanadium-based TMDC, such as VSe₂ and VTe₂ avoided close scientific attention due to difficult process of their synthesis and crystal growth.

In this work we aim to fill knowledge gap in vanadium-based systems, such as VSe₂ and VTe₂ and further investigate this group of layered materials.