Novel Magnetic Responses of Uric Acid Crystals under Light Irradiations

Abstract

Biogenic crystals such as uric acid crystals were investigated for the purpose of exploring a new solar energy transfer function in the structure of uric acid crystals. The plate-like uric acid crystals had a plane surface which is a kind of micro-mirror, showing Brownian motion under dark illumination. We discovered the magnetically induced light intensity changing in the uric acid crystals when they were exposed to the magnetic fields of more than 500mT. The magnetic control of light scattering in the micro-mirror was investigated for the purpose of exploring the new mechanism of optical energy transformation in photonic crystals.