MBE growth and abnormal magnetic behaviors of epitaxial Fe100−xGax on SrTiO3
Source abstract
Abstract
Here, we present the magnetic behaviors of disordered bcc α-Fe phase Fe100−xGax (x = 10, 20, and 30) thin films grown on a SrTiO3 substrate using molecular beam epitaxy. With the Ga content increasing from 10% to 30%, the saturation magnetization decreased from 1575 to 991 emu/cm3 while the coercivity increased from 23 to 197 Oe. A two-step-hysteresis loop was observed in all films. Specifically, the hysteresis loop of the film with 10% Ga concentration reveals an obvious kink. Magneto-optical Kerr images confirmed the abnormal magnetic domain switching in the films, which is due to the appearance of perpendicular domains under external magnetic field.
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Research context
OpenAlex topics: Magnetic Properties and Applications · Magnetic properties of thin films · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Quantum Technology Institute, Korea Research Institute of Standards and Science 1 , Daejeon 34113, Republic of Korea
Department of Physics and Energy Harvest Storage Research Center, University of Ulsan 2 , Ulsan 44610, Republic of Korea
Department of Physics, Nha Trang University 3 , Nha Trang 650000, Vietnam
Neutron Science Division, Korea Atomic Energy Research Institute 4 , Daejeon 34057, Republic of Korea
Funding
National Research Foundation of Korea
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