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A Study of the Head Disk Interface in Heat Assisted Magnetic Recording - Energy and Mass Transfer in Nanoscale

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자료유형	E-Book
개인저자	Wu, Haoyu.
단체저자명	University of California, Berkeley. Mechanical Engineering.
서명/저자사항	A Study of the Head Disk Interface in Heat Assisted Magnetic Recording - Energy and Mass Transfer in Nanoscale.
발행사항	[S.l.] : University of California, Berkeley., 2018
발행사항	Ann Arbor : ProQuest Dissertations & Theses, 2018
형태사항	115 p.
소장본 주기	School code: 0028.
ISBN	9780438325630
일반주기	Source: Dissertation Abstracts International, Volume: 80-01(E), Section: B. Adviser: David B. Bogy.
요약	The hard disk drive (HDD) is still the dominant technology in digital data storage due to its cost efficiency and long term reliability compared with other forms of data storage devices. The HDDs are widely used in personal computing, gaming dev
요약	In HAMR, the magnetic media is heated locally (&sim
요약	Since the laser heating in HAMR happens at nanoscale spatially and temporally, it is difficult to measure experimentally. In this dissertation, a comprehensive experimental stage, called the Computer Mechanics Laboratory (CML)-HAMR stage, was bu
요약	The head's temperature was measured during the laser heating using the stage and heads with an embedded contact sensor (ECS). It was estimated, based on a linear extrapolation, that the ECS temperature rise is 139K, 132K, 127K and 122K when the
요약	The head disk interaction during the laser heating was studied using a waveguide head, i.e., a HAMR head without the NFT. It showed that the laser heating can cause head surface protrusion. This lowers the fly-height (FH) and results in early to
요약	Finally the disk lubricant reflow after laser heating was studied. In the experiment, a beam of free space laser shines on the rotating disk at different laser powers, disk rotating speeds and repetitions. Then the disk was examined by an optica
일반주제명	Mechanical engineering.
언어	영어
기본자료 저록	Dissertation Abstracts International80-01B(E). Dissertation Abstract International
대출바로가기	http://www.riss.kr/pdu/ddodLink.do?id=T14999990