Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5496455 | Physics Letters A | 2017 | 17 Pages |
Abstract
Using X-band Ferromagnetic Resonance (FMR) Spectroscopy, we demonstrate the microscopic ferromagnetic resonance features of degenerated GdN semiconductor. The FMR spectrum suggests a single resonance mode below 10 K; interestingly, this particular structure is found to exhibit a peculiar magnetic resonance (PMR) on the top of the uniform FMR while temperature increases from 12-36 K. The low-field PMR mode attributed to the differently magnetized part of the film with an easy in-plane axis. The narrow-field gap between PMR and uniform FMR suggests the strong coupling owning to the differently magnetized part with easy in-plane axis and the magnetized part with an out-of-plane axis. The saturation magnetization, cubic magnetocrystalline anisotropy, and uniaxial anisotropy of GdN epitaxial film have been evaluated by the angular-dependence FMR.
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Reddithota Vidyasagar, Takashi Kita, Takahiro Sakurai, Tokuro Shimokawa, Hitoshi Ohta,