Electronic spin resonance study of room-temperature ferromagnet cr3te4

Chromium telluride Cr3Te4 with intrinsic room-temperature ferromagnetism has substantially practical appli-cation in spintronics. In this work, the microwave response of Cr3Te4 single crystal is investigated by the elec-tronic spin resonance (ESR) with the magnetic field applied along various directions. Two resonance lines are observed for both H//ab and H//c, which are suggested to result from ferromagnetic (FM) and antiferromagnetic (AFM) fluctuations respectively. The angle-dependent ESR spectra show considerable anisotropy, with a strong microwave response for H//ab and a weak microwave response for H//c. The analysis of the ESR spectra reveals the coexistence of FM and AFM fluctuations in this system. Moreover, this anisotropic microwave response in single crystal Cr3Te4 could benefit the microwave-based spintronic device.