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Mon Jun 7, 2021, 01:19 PM

Ultra-high-density hard drives made with graphene store ten times more data

From phys.org



Graphene can be used for ultra-high density hard disk drives (HDD), with up to a tenfold jump compared to current technologies, researchers at the Cambridge Graphene Center have shown.

...

HDDs contain two major components: platters and a head. Data are written on the platters using a magnetic head, which moves rapidly above them as they spin. The space between head and platter is continually decreasing to enable higher densities.

Currently, carbon-based overcoats (COCs) – layers used to protect platters from mechanical damages and corrosion—occupy a significant part of this spacing. The data density of HDDs has quadrupled since 1990, and the COC thickness has reduced from 12.5nm to around 3nm, which corresponds to one terabyte per square inch. Now, graphene has enabled researchers to multiply this by ten.

...

Cambridge scientists transferred graphene onto hard disks made of iron-platinum as the magnetic recording layer, and tested Heat-Assisted Magnetic Recording (HAMR) – a new technology that enables an increase in storage density by heating the recording layer to high temperatures. Current COCs do not perform at these high temperatures, but graphene does. Thus, graphene, coupled with HAMR, can outperform current HDDs, providing an unprecedented data density, higher than 10 terabytes per square inch.

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Reply Ultra-high-density hard drives made with graphene store ten times more data (Original post)
Jim__ Jun 7 OP
OhZone Jun 7 #1
abqtommy Jun 7 #3
SpankMe Jun 7 #2
PoliticAverse Jun 7 #5
Miguelito Loveless Jun 7 #4
WHITT Jun 7 #6
orwell Jun 7 #7
Bristlecone Jun 7 #8

Response to Jim__ (Original post)

Mon Jun 7, 2021, 01:24 PM

1. Now I can finally download the entire internet!

And a car. ha

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Response to OhZone (Reply #1)

Mon Jun 7, 2021, 01:31 PM

3. +100 Download a flying pony for me while you're at it!

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Response to Jim__ (Original post)

Mon Jun 7, 2021, 01:29 PM

2. Is there anything graphene can't do!? n/t

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Response to SpankMe (Reply #2)

Mon Jun 7, 2021, 01:42 PM

5. Be commercially viable? n/t

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Response to Jim__ (Original post)

Mon Jun 7, 2021, 01:37 PM

4. Every time they declare hard drives dead

Last edited Thu Jun 10, 2021, 12:40 PM - Edit history (1)

they pull another order of magnitude increase in data density.

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Response to Jim__ (Original post)

Mon Jun 7, 2021, 01:59 PM

6. The Future Of Computers

is shifting away from moving parts, as they fail, and hard drives are the last element of computers with moving parts.

SS (solid state) drives keep getting larger and prices keep declining. I was surprised how small of a price bump it was to swap-in a SS drive in my latest laptop.

I do have my own 'cloud', consisting of large high rpm hard drives, but that's not accessed all-day long/every day like the drives in the computers.

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Response to Jim__ (Original post)

Mon Jun 7, 2021, 03:20 PM

7. Spinning hard drives...

...and buggy whips.

Do you want to make your computer much faster?

Get rid of the spinning "record player" hard drive and install an SSD.

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Response to Jim__ (Original post)

Mon Jun 7, 2021, 03:57 PM

8. Why do I want spinning media? This is a better horse and buggy.

On edit - pretty much the same as Orwell above^^^

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