Development of the high-field ESR facility at the Dresden High Magnetic Field Laboratory (HLD)

In this presentation I will talk about recent developments of the high-field Electron Spin Resonance facility at the Dresden High Magnetic Field Laboratory (HLD), Forschungszentrum Dresden–Rossendorf. A unique feature of the facility is a combination of an extraordinary broad frequency range, 9 GHz – 100 THz (achieved by use of a number of tunable-frequency radiation sources, including MVNA, BWOs and FEL) and high magnetic fields (70 T and 16 T, produced by pulsed and superconducting magnets, respectively). The talk will be illustrated by recent results obtained in-house (including the study of the excitation spectrum in the spin-1/2 chain system (6MAP)CuCl₃, the spin-ladder material BPCB, and others), as well as by results of international collaborations (including the collaboration with the National Institute of Chemical Physics and Biophysics, Tallinn, Estonia)