@phdthesis{Gottscholl2022, author = {Gottscholl, Andreas Paul}, title = {Optical Accessible Spin Defects in Hexagonal Boron Nitride: Identification, Control and Application of the Negatively Charged Boron Vacancy VB-}, doi = {10.25972/OPUS-27432}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-274326}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2022}, abstract = {In this work, a bridge was built between the so-far separate fields of spin defects and 2D systems: for the first time, an optically addressable spin defect (VB-) in a van der Waals material (hexagonal boron nitride) was identified and exploited. The results of this thesis are divided into three topics as follows: 1.) Identification of VB-: In the scope of this chapter, the defect ,the negatively charged boron vacancy VB-, is identified and characterized. An initialization and readout of the spin state can be demonstrated optically at room temperature and its spin Hamiltonian contributions can be quantified. 2.) Coherent Control of VB-: A coherent control is required for the defect to be utilized for quantum applications, which}, subject = {Bornitrid}, language = {en} }