Raman study of stoichiometric and Zn-doped Fe3O4

Article

关键词: VERWEY TRANSITION-TEMPERATURE;    HEAT-CAPACITY;    MAGNETITE;    MODES;    GAP;   

DOI  :  10.1103/PhysRevB.65.104430

来源: SCIE

【 摘 要 】

We report here our Raman studies on Fe3-xZnxO4 (x=0,0.015,0.03) across the Verwey transition in the temperature range 20-300 K. The changes in Raman spectra as a function of doping show that the changes are gradual for samples with higher Zn doping. Allen's formula has been used to estimate the strength of electron-phonon interaction from the observed lineshape parameters. These estimates show that there is strong electron-phonon coupling in this system and is highest for the T-2g(3) mode in comparison to A(1g) and T-2g(2) modes.

【 授权许可】

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