Effect of sputtering power on the first order magnetization reversal, reversible and irreversible process in Fe71Ga29 thin films

Nayak, B.B. and Jammalamadaka, S.N. (2021) Effect of sputtering power on the first order magnetization reversal, reversible and irreversible process in Fe71Ga29 thin films. Journal of Magnetism and Magnetic Materials, 536 (168107). ISSN 03048853

Full text not available from this repository. (Request a copy)

Abstract

We report on the first-order reversal curves (FORC) of magnetization and effect of defects on magnetization process in Fe71Ga29 thin films with different values of sputtering power (50 – 120 W). Phase purity of the thin films was confirmed by grazing incidence X-ray diffraction (GI-XRD). The reversible and irreversible contributions to the magnetization are evidenced through the minor loop parameter such as pseudo hysteresis loss (WF*) and energy loss coefficient (WF0). In particular, the energy loss coefficient is found to decrease from 28 × 106 (A/m. mT) at 50 W to 21 × 106 (A/m. mT) at 120 W, which signifies a decrease in domain wall resistance. FORC infers narrow switching, which leads to low coercivity distribution at 120 W as a result of less defects. © 2021

[error in script]

IITH Creators: