Re: Proof of principle demonstration of 3-D magnetic recording

On a sunny day (Tue, 9 Apr 2024 10:07:12 +0200) it happened Jeroen Belleman
<jeroen@nospam.please> wrote in <uv2svn$3p4r$1@dont-email.me>:
 

On 4/9/24 09:49, Jan Panteltje wrote:

On a sunny day (Tue, 9 Apr 2024 09:19:46 +0200) it happened Arie de Muijnck
<noreply@ademu.com> wrote in <nnd$16a4abad$09e25412@0ec9ca3c539ad932>:
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On 2024-04-09 06:42, Jan Panteltje wrote:

Proof-of-principle demonstration of 3-D magnetic recording
Possibility of ultra-high density hard disk drives with areal densities exceeding 10 Tbit/in² using multi-level magnetic
recording
    https://www.sciencedaily.com/releases/2024/04/240408130543.htm
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Picture of layers:
    https://www.nims.go.jp/eng/news/press/2024/03/202403270.html
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Great idea for recording.
Now we just have to invent a reading system...
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Arie
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correlation of 2 magnetic sensors pointing down in an angle?
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MS1 MS  MS2
   \  \/  /
=========== top layer
     \  /
      \/
=========== second layer
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Use fixed font.
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Have not tried it...

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They seem to have three distinguishable levels of magnetization,
so about 1.5 bits per cell.
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Jeroen Belleman

 I once did read about 3D storage with lasrs in some crystal or something..
No idea if that ever came to market.
And storage in DNA...