Date: Tue, 9 Apr 2024 12:00:40 +0200
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Subject: Re: Proof of principle demonstration of 3-D magnetic recording
Content-Language: nl, en-US
Newsgroups: sci.electronics.design
References: <uv2h0d$alco$1@solani.org>
 <nnd$16a4abad$09e25412@0ec9ca3c539ad932> <uv2ruo$bneg$1@solani.org>
From: Arie de Muijnck <noreply@ademu.com>
In-Reply-To: <uv2ruo$bneg$1@solani.org>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 8bit
Message-ID: <nnd$6ebcbc3d$25de2d67@8f3b57b8b1b11fb4>
Organization: KPN B.V.
Path: ...!weretis.net!feeder6.news.weretis.net!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!feed.abavia.com!abe004.abavia.com!abp002.abavia.com!news.kpn.nl!not-for-mail
Lines: 41
Injection-Date: Tue, 09 Apr 2024 12:00:38 +0200
Injection-Info: news.kpn.nl; mail-complaints-to="abuse@kpn.com"
Bytes: 2124

On 2024-04-09 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...

Pointing magnetic sensors? Thin beams? Unknown to me.
Array of (non-thin beam!) sensors + tomography? Might work.

Glad I'm retired, this looks too much like the DocData optical tape storage I worked on.

Arie