A concise 40 T pulse magnet for condensed matter experiments

TL;DR

This paper presents a portable, cost-effective 40 T pulsed magnetic field generator designed for condensed matter experiments, utilizing off-the-shelf components and accessible programming tools.

Contribution

It introduces a compact, easily modifiable pulsed magnet system that achieves high magnetic fields with simple assembly, enabling broader experimental applications.

Findings

Achieved 41 T maximum magnetic field in experiments.

Successfully measured magnetoresistance, magnetization, and magnetostriction.

Operated effectively at temperatures as low as 4.2 K.

Abstract

There is a growing interest in using pulsed high magnetic field as a controlling parameter of physical phenomena in various scientific disciplines, such as condensed matter physics, particle physics, plasma physics, chemistry and biological studies. We devised a concise and portable pulsed magnetic field generator that produces a 40 T field with a pulse duration of 2 ms. It is assembled using only off-the-shelf components and a homemade coil that leverages small computers, Raspberry Pi, and Python codes. It allows for straightforward modification for general purposes. As working examples, we show representative applications in condensed matter experiments of magnetoresistance, magnetization, and magnetostriction measurements for graphite, NdNi$_{2}$P$_{2}$, and NdCo$_{2}$P$_{2}$, respectively, with the maximum magnetic field of 41 T and the lowest temperature of 4.2 K.