教師資料查詢 | 類別: 期刊論文 | 教師: 彭維鋒 Pong, Way-faung (瀏覽個人網頁)

標題:High coercivity magnetic multi-wall carbon nanotubes for low-dimensional high-density magnetic recording media
學年98
學期2
出版(發表)日期2010/05/01
作品名稱High coercivity magnetic multi-wall carbon nanotubes for low-dimensional high-density magnetic recording media
作品名稱(其他語言)
著者Ray, S.C.; Bhattacharyya, S.; Wu, S.L.; Ling, D.C.; Pong, W.F.; Giorcelli, M; Bianco, S.; Tagliaferro, A.
單位淡江大學物理學系
出版者Lausanne: Elsevier S.A.
著錄名稱、卷期、頁數Diamond and Related Materials 19(5-6), pp.553-556
摘要Fe-embedded multi-wall carbon nanotubes (MWCNTs) were fabricated using Fe-catalyst by the chemical deposition method. Microscopic characterizations showed that the well-aligned MWCNTs were ∼ 80 mm in length, with outer diameter of 20–50 nm and inner diameter of 10–20 nm. Magnetic properties were characterized in temperatures of 5 K and 305 K, which revealed that the MWCNTs exhibited high coercivity of 2600 Oe at 5 K and 732 Oe at 305 K. These values are much higher than that of bulk iron (∼ 0.9 Oe) and Fe/Co/Ni nanoparticles or nano-wire arrays (∼ 200–500 Oe) at the room temperature. This high coercivity and the structure of single-domain Fe nanoparticles isolated by anti-ferromagnetic MWCNTs make it a promising candidate for low-dimensional high-density magnetic recording media.
關鍵字MWCNTs;Coercivity;Magnetic recording media
語言英文
ISSN0925-9635
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者Ray, S.C.
審稿制度
國別瑞士
公開徵稿
出版型式紙本
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