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- W746722013 abstract "퍼말로이/교환중간층(Ru, V)퍼말로이 구조의 인위적 페리층을 만들어 이때 교환중간층의 두께를 4-20 <TEX>$AA$</TEX>으로 변화시키며 이때의 보자력( <TEX>$H_{c}$</TEX>), 스핀플로핑 필드( <TEX>$H_{sf}$</TEX> ), 포화자계( <TEX>$H_{s}$</TEX> )의 변화를 SQUID로 확인하였다. 아울러 수직단면투과전자현미경을 이용하여 Ru, V의 인위적페리층의 미세구조를 관찰하였다. 퍼말로이를 채용한 인위적 구조는 모두 보자력이 10 Oe이하로 가능하였고 교환 층의 두께를 조절함으로써 적절한 <TEX>$H_{s}$</TEX> , <TEX>$H_{sf}$</TEX> 의 선택이 가능하였다. 특히 바나듐을 교환매개층으로 채택한 경우도 8 <TEX>$AA$</TEX>의 두께에서 교환 작용이 확인되었다. 미세구조확인결과 V의 경우 퍼말로이와 혼입에 의해 유효두께가 얇아져서 교환 작용이 작아짐을 확인하였다. We fabricated the synthetic ferrimagnetic layers (SyFL) of permalloy/X (X=Ru, V)/permalloy by varying the X thickness, and investigated the changes of coercivity (H<TEX>$sub$</TEX>c/), spin flopping field (H<TEX>$sub$</TEX>sf/), and saturation magnetization field (H<TEX>$sub$</TEX>s/) with a superconducting quantum interference device (SQUID). We also observed the microstructure with a cross sectional transmission electron microscope (TEM). Permalloy SyFL had less than 10 Oe coercivity, and H<TEX>$sub$</TEX>sf/ and H<TEX>$sub$</TEX>s/ could be tuned by varying ruthenium and vanadium layer thickness. The comparatively small exchange coupling in permalloy-V SyFL was caused by the intermixing of permalloy and vanadium decreasing the effective exchange coupling thickness." @default.
- W746722013 created "2016-06-24" @default.
- W746722013 date "2003-10-01" @default.
- W746722013 modified "2023-09-25" @default.
- W746722013 title "Microstructure and Exchange Coupling in Synthetic Ferrimagnetic Permalloy/ Ru (V)/Permalloy Films" @default.
- W746722013 doi "https://doi.org/10.4283/jkms.2003.13.5.211" @default.
- W746722013 hasPublicationYear "2003" @default.
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