Spin Transition Molecular Materials for displays and data recording

TLDR

The study examines a Fe(II)-based spin‑transition compound with 1,2,4‑triazole units and reviews requirements for future progress. The paper aims to develop and demonstrate recording media using molecular spin‑transition materials. The Fe(II) ion undergoes a spin transition near 210 K, accompanied by a purple‑white color change. A magnified image is provided.

Abstract

The development of recording media based on molecular spin‐transition (ST) materials is discussed and applications demonstrated for the first time. The figure shows a compound which exhibits an ST and which is based on Fe II and 1,2,4‐triazole units. The central Fe II ion undergoes an ST at around 210 K which is accompanied by a purple‐white color change. Requirements for future progress are reviewed. magnified image