A rotating cavity for high-field angle-dependent microwave spectroscopy of low-dimensional conductors and magnets

摘要

The cavity perturbation technique is an extremely powerful method formeasuring the electrodynamic response of a material in the millimeter- andsub-millimeter spectral range (10 GHz to 1 THz), particularly in the case ofhigh-field/frequency magnetic resonance spectroscopy. However, the applicationof such techniques within the limited space of a high-field magnet presentssignificant technical challenges. We describe a 7.62 mm x 7.62 mm (diameter xlength) rotating cylindrical cavity which overcomes these problems.