Dielectric Measurements in Pulsed Fields

The speed of the pulse actually increases signal to noise compared to measurements in superconducting magnets. Magnetic fields up 100 T are available. Samples are measured in a helium environment down to 0.5 K. Dielectric constant can also be measured in dc magnetic fields to 20 T and in pulsed fields up to 60 T in the mid or long-pulse magnets using a capacitance at frequencies up to 50 kHz.

Multiferroics combine electric and magnetic ordering in the same material. When these two properties are coupled, then a magnetic field can control the electric polarization, and an electric field can control the magnetization. This can lead to new applications such as ultra-sensitive solid state magnetic sensors, computer memory that combines the best properties of ferroelectric storage and magnetic read/write, solid-state microwave and high-power devices, energy harvesting, and other novel and smart circuit devices.