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Enhancing the magnetism
PhysOrg ^ | March 18, 2011 | Unknown

Posted on 03/18/2011 6:30:00 PM PDT by decimon

(PhysOrg.com) -- Berkeley researchers find enhanced and controllable magnetization in unique bismuth ferrite films.

"The nation that controls magnetism will control the universe," famed fictional detective Dick Tracy predicted back in 1935. Probably an overstatement, but there's little doubt the nation that leads the development of advanced magnetoelectronic or "spintronic" devices is going to have a serious leg-up on its Information Age competition. A smaller, faster and cheaper way to store and transfer information is the spintronic grand prize and a key to winning this prize is understanding and controlling a multiferroic property known as "spontaneous magnetization."

Now, researchers with the U.S. Department of Energy (DOE) Lawrence Berkeley National Laboratory (Berkeley Lab) have been able to enhance spontaneous magnetization in special versions of the popular multiferroic material bismuth ferrite. What's more, they can turn this magnetization "on/off" through the application of an external electric field, a critical ability for the advancement of spintronic technology.

"Taking a novel approach, we've created a new magnetic state in bismuth ferrite along with the ability to electrically control this magnetism at room temperature," says Ramamoorthy Ramesh, a materials scientist with Berkeley Lab's Materials Sciences Division, who led this research. "An enhanced magnetization arises in the rhombohedral phases of our bismuth ferrite self-assembled nanostructures. This magnetization is strain-confined between the tetragonal phases of the material and can be erased by the application of an electric field. The magnetization is restored when the polarity of the electric field is reversed."

Ramesh, who also holds appointments with the University of California Berkeley's Department of Materials Science and Engineering and the Department of Physics, is the corresponding author of a paper in the journal Nature Communications titled "Electrically Controllable Spontaneous Magnetism in Nanoscale Mixed Phase Multiferroics."

(Excerpt) Read more at physorg.com ...


TOPICS: Science
KEYWORDS: stringtheory
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To: Quix
Interesting.
Give me a sheet of diamagnetic material whose properties I can turn on and off electronically, efficiently and fast (semi conductor like) and I'll be richer than Bill Gates in a year :^)
21 posted on 03/18/2011 9:32:55 PM PDT by The Cajun
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To: The Cajun

ONLY

if the oligarchy decided to allow you to do so . . . and probably dictated their cut and terms.


22 posted on 03/18/2011 9:50:49 PM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: The Cajun

What are some uses you’d put it to?


23 posted on 03/18/2011 9:51:14 PM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: Quix

Would make one heck of a completely permanent magnet motor if you could shield and unshield the permanent magnets in the stator and rotor from each other efficiently (power wise) and quickly in the proper sequence. To bad it would be a perpetual motion machine and that’s not allowed :^)


24 posted on 03/18/2011 10:04:40 PM PDT by The Cajun
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To: decimon

Bookmark


25 posted on 03/18/2011 10:16:50 PM PDT by Lurkina.n.Learnin (Figures don't lie, liars figure!)
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To: The Cajun

There are purportedly several variations of a

zero-point energy machine using such . . .

a suitcase sized unit able to power a home or a car

for $0.50/year


26 posted on 03/18/2011 10:17:18 PM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: Quix

My guess is that 99.999999999999999% percent of zero point energy devices are scams. I didn’t say 100 percent, but...............Mother nature is not an easy wench to cheat, yet.


27 posted on 03/18/2011 10:33:36 PM PDT by The Cajun
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To: The Cajun

I don’t know that the percentage is quite that high but it could be.

The oligarchy is not about to let it out, yet, imho.

They are terrified the population would mushroom . . . and the critters have lied and convinced them that would mean the end of mankind and the planet.

Before they let such out . . . they have to:

1. reduce the global population forceably to 200 million;
2. figure out a way to insure centralized, tyrannical, master over slave control even with decentralized power; &
3. still insure massive amounts of wealth for themselves and none for the slaves and serfs.

Thankfully, God has a better plan.

And it includes wiping all evidence of such evil doers’ existence off the planet.


28 posted on 03/19/2011 4:43:19 AM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: The Cajun

I don’t know if any of the purportedly available units are truly viable units. I’m just convinced that there are at least 3-4 different ways to construct such a unit.


29 posted on 03/19/2011 4:45:00 AM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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To: gorush

No doubt by your magnetic personality.


30 posted on 03/19/2011 5:50:50 AM PDT by MHGinTN (Some, believing they can't be deceived, it's nigh impossible to convince them when they're deceived.)
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To: Quix

“Art’s parts” were an unusual alloy of Bismuth.


31 posted on 03/19/2011 6:01:22 PM PDT by happygrl
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To: happygrl

Sorry, I don’t know what your original ref is to.

Who’s Art?


32 posted on 03/19/2011 6:27:55 PM PDT by Quix (Times are a changin' INSURE you have believed in your heart & confessed Jesus as Lord Come NtheFlesh)
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