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>:
 

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
>
Picture of layers:
   https://www.nims.go.jp/eng/news/press/2024/03/202403270.html
>

>
Great idea for recording.
Now we just have to invent a reading system...
>
Arie
>

 
correlation of 2 magnetic sensors pointing down in an angle?
 
MS1 MS  MS2
  \  \/  /
=========== top layer
    \  /
     \/
=========== second layer
 
Use fixed font.
 
Have not tried it...

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