Pressure-Induced Spin Transition in LuCu3Fe4O12
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2022-04-15 |
| Journal | Journal of the Physical Society of Japan |
| Authors | Takateru Kawakami, Yuta Nakakura, Keita Tokumichi, Yasuo Ohishi, Naohisa Hirao |
| Institutions | Osaka Prefecture University, Japan Synchrotron Radiation Research Institute |
| Citations | 2 |
Abstract
Section titled āAbstractāThe electronic properties of the A-site-ordered perovskite iron oxide LuCu3Fe4O12 subjected to pressure in a diamond anvil cell were investigated by 57Fe Mƶssbauer spectroscopy, electrical resistance, and X-ray diffraction measurements. The application of pressure induced the transition from the charge disproportionation (Fe3+ and Fe5+) state to the charge-uniform (Fe3.75+) state and from semiconductor to metal. Upon further pressurization, Fe3.75+ underwent a spin transition, which was accompanied by a significant reduction in unit-cell volume. Thus, under high pressure, the metallic charge-uniform low-spin state of LuCu3Fe4O12 is stable.