Patent
Underlayers for heat assisted magnetic recording (HAMR) media
TLDR
In this article, a heat assisted magnetic recording (HAMR) media comprising of a magnetic recording layer, a barrier layer, and an amorphous seedlayer was proposed. But the authors did not specify the type of seed layer.Abstract:
Various embodiments provide for a heat assisted magnetic recording (HAMR) media comprising: a magnetic recording layer; a barrier layer disposed under the magnetic recording layer; a first underlayer disposed under the barrier layer; and an amorphous seedlayer disposed under the first underlayer. For some embodiments, the recording medium may comprise: a magnetic recording layer including FePt alloy, a CoPt alloy, or a FePd alloy; a barrier layer including MgO, TiC, TiN, CrN, TiCN, β-WC, TaC, HfC, ZrC, VC, NbC, or NiO; a first underlayer including RuAl-oxide, NiAl, FeAl, AlMn, CuBe, or AlRe; or an amorphous seedlayer including a Cr—X alloy, where X comprises Al, B, C, Cu, Hf, Ho, Mn, Mo, Ni, Ta, Ti, V, W, or Ru.read more
Citations
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References
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Patent
Magnetic recording medium
Takayama Kazuhisa,Fuji Hiroshi +1 more
TL;DR: In this paper, a magnetic recording medium consisting of a foundation layer 3 and a magnetic layer 5 sequentially formed on a substrate has been proposed, and a protective layer 6 is formed on the magnetic layer.
Patent
Magnetic recording medium and magnetic storage apparatus
TL;DR: In this article, a magnetic recording medium is constructed to include a lower magnetic layer, a nonmagnetic spacer layer disposed on the lower magnetic layers, and an upper magnetic layer disposing on the non-magnetic layers, where the upper and lower layers are antiferromagnetically coupled.
Patent
Magnetic recording medium.
TL;DR: In this article, the back layer is formed with a coating material contg. a filler, a binder and a silicon compd. The back layer has at least three carboxylate ester bonds and having a number average mol.wt.
Patent
Perpendicular magnetic discrete track recording disk
David Wachenschwanz,Gerardo A. Bertero,David Treves,Andrew Marian Homola,James L. Fremont Chao,Christopher H. Bajorek +5 more
TL;DR: In this article, a method of forming a discrete track recording pattern on a soft magnetic underlayer of a perpendicular magnetic recording disk is presented, where the underlayer is continuous throughout the recording pattern.
Patent
Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus
Hiroshi Osawa,Kenji Shimizu +1 more
TL;DR: In this article, a magnetic recording medium is characterized in that at least a non-magnetic base layer, a nonmagnetic intermediate layer, and a magnetic layer are laminated in this order on a non magnetic substrate, and at least one of the layers of the base layer is configured by a WX-based alloy or a MoXbased alloy (X=Zr, Nb, Hf, Ta).