Drop by Ars Technica for an overview, and link to, a paper on using ferroelectric nanocapacitors as a storage medium.  The papers claim of one Tb/inch2 is a bit of an exaggeration for their current process, but as lithography progresses, the terabyte may be in reach.  If they can advance it quickly enough, we may see a whole new type of solid state storage.

“Storage – there is never enough of it. I still remember when I thought my 700MB hard drive was huge… until I tried to copy an entire CD onto it for faster access. After that, I spent a period stuck choosing music to stick on my three GB hard drive. Two weeks ago, I ditched six months’ worth of simulation data because my 320GB hard drive was full. One TB of new drive later, and I’m wondering how soon it will be before I start feeling the squeeze again. Maybe never, if some of the latest research coming out of Korea and Germany bears fruit.”

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