Ferromagnetic semiconductors with luminescent effects provide a unique platform for studying magneto-electric-optical multifunctional devices. However, little is known about such materials with spin ordering well above room temperature. By using a unique high-pressure annealing method, a Cr and Fe disordered perovskite oxide SrCr_0.5Fe_0.5O_2.875 (SCFO) with a simple cubic structure was prepared. Magnetic measurements demonstrated the ferromagnetic behavior with a spin ordering temperature as high as 600 K. In contrast to metallic SrCrO₃ and SrFeO₃, SCFO, with a moderate oxygen deficiency, is a direct bandgap semiconductor with an energy gap of 2.28 eV, which is within the visible light region. As a consequence, SCFO displays a green fluorescent effect arising from the d–p bonding and anti-bonding states. Moreover, the photoluminescence intensity can be tuned by a magnetic field. This work opens up a new avenue for research on room-temperature multifunctional materials with coupled magnetic, electrical, and optical performance.

具有发光效果的铁磁半导体为研究磁电光多功能设备提供了一个独特的平台。然而，关于这种材料的旋压排序远高于室温，对此知之甚少。通过使用独特的高压退火方法，制备了具有简单立方结构的Cr和Fe无序钙钛矿氧化物SrCr _0.5 Fe _0.5 O _2.875（SCFO）。磁性测量表明自旋有序温度高达600 K时的铁磁行为。与金属SrCrO ₃和SrFeO _3相比具有轻度缺氧的SCFO是一种直接带隙半导体，其能隙为2.28 eV，在可见光区域内。结果，SCFO显示出由d-p键和反键状态引起的绿色荧光效应。此外，可以通过磁场来调节光致发光强度。这项工作为结合磁性，电学和光学性能的室温多功能材料的研究开辟了一条新途径。