Skip to comments.
Frustrated magnets - Hall Effect clues to their discontent
sciencecodex.com ^
Posted on 04/03/2015 5:40:51 PM PDT by BenLurkin
An experiment conducted has revealed an unlikely behavior in a class of materials called frustrated magnets, addressing a long-debated question about the nature of these discontented quantum materials.
The researchers tested the frustrated magnets -- so-named because they should be magnetic at low temperatures but aren't -- to see if they exhibit a behavior called the Hall Effect. When a magnetic field is applied to an electric current flowing in a conductor such as a copper ribbon, the current deflects to one side of the ribbon. This deflection, first observed in 1879 by E.H. Hall, is used today in sensors for devices such as computer printers and automobile anti-lock braking systems.
Because the Hall Effect happens in charge-carrying particles, most physicists thought it would be impossible to see such behavior in non-charged, or neutral, particles like those in frustrated magnets. "To talk about the Hall Effect for neutral particles is an oxymoron, a crazy idea," said N. Phuan Ong, Princeton's Eugene Higgins Professor of Physics.
(Excerpt) Read more at sciencecodex.com ...
TOPICS: Science
KEYWORDS: electricuniverse; frustratedmagnets; halleffect; magnetism; oateseffect; poleshift; stringtheory
Navigation: use the links below to view more comments.
first 1-20, 21-22 next last
1
posted on
04/03/2015 5:40:51 PM PDT
by
BenLurkin
To: BenLurkin
2
posted on
04/03/2015 5:49:53 PM PDT
by
doc1019
(Blue lives matter)
To: BenLurkin
"To talk about the Hall Effect for neutral particles is an oxymoron, a crazy idea,"
Indeed. He read my mind.
3
posted on
04/03/2015 5:52:32 PM PDT
by
cripplecreek
("For by wise guidance you can wage your war")
To: cripplecreek
"This work sets the stage for hunting the spinon," Ong said. "We have seen its tracks, so to speak." All I know about the Hall effect -- is that nothing works better to stop a cough.
4
posted on
04/03/2015 5:59:53 PM PDT
by
BenLurkin
(The above is not a statement of fact. It is either satire or opinion. Or both.)
To: BenLurkin; 6SJ7; AdmSmith; AFPhys; Arkinsaw; allmost; aristotleman; autumnraine; bajabaja; ...
5
posted on
04/03/2015 6:12:22 PM PDT
by
SunkenCiv
(What do we want? REGIME CHANGE! When do we want it? NOW!)
To: BenLurkin
So, what to do with all these monopoles?
/johnny
Support Free Republic
If just 5% of our daily readers and participants would donate $10 or $20 today,
this FReepathon would be over by tomorrow.
If you love using FR and think it's a worthwhile endeavor,
please click the donate link today and help us keep it going strong.
Thank you very much.
God bless.
7
posted on
04/03/2015 6:34:35 PM PDT
by
RedMDer
(Keep Free Republic Alive with YOUR Donations!)
To: JRandomFreeper
I was told that I would go blind if I played with mine.
8
posted on
04/03/2015 6:39:30 PM PDT
by
cripplecreek
("For by wise guidance you can wage your war")
To: cripplecreek
I was told that I would go blind if I played with mine. Me, too. Thankfully, that was a lie. At least so far.
To: TontoKowalski
I’m only blind in my right eye. Fortunately I’m too uncoordinated with my left hand to try.
10
posted on
04/03/2015 6:44:03 PM PDT
by
cripplecreek
("For by wise guidance you can wage your war")
To: cripplecreek
Hang on... I've got to find my glasses.
/johnny
To: BenLurkin
“should be magnetic but aren’t “
Completely backwards. Should be “scientists are re examining their theories which are not adequate to completely describe the behavior of these materials at that temperature”
12
posted on
04/03/2015 7:19:01 PM PDT
by
I want the USA back
(Media: completely irresponsible. Complicit in the destruction of this country.)
To: BenLurkin
“Mr. Fredrickson, I found the spinon!”
“Oh, that’s great, Kevin! Just leave it on the porch.”
To: BenLurkin
At first i thought it said “Frustrated Maggots” and it was an article about Moochelle’s school lunch program.
Sure, the garbage cans are full, but even the maggots don’t want to eat that stuff.
14
posted on
04/03/2015 7:31:58 PM PDT
by
left that other site
(You shall know the Truth, and The Truth Shall Set You Free.)
To: left that other site
15
posted on
04/03/2015 7:38:58 PM PDT
by
Nuc 1.1
(Nuc 1 Liberals aren't Patriots. Remember 1789!)
To: Nuc 1.1
Why thank you, FRiend! I love String Theory Threads!
:-)
16
posted on
04/03/2015 7:43:22 PM PDT
by
left that other site
(You shall know the Truth, and The Truth Shall Set You Free.)
To: BenLurkin
The hall effect is used in many sensors used in our engines. Gasoline or diesel. ...
17
posted on
04/03/2015 7:53:35 PM PDT
by
MountainDad
(Support your local Militia)
To: MountainDad
“The hall effect is used in many sensors used in our engines. Gasoline or diesel. ...”
And they work really well, too - until they don’t! The effect is very small, and requires an electronic amplifier, which usually drops dead after several years of exposure to heat (from the engine or in anti-lock brakes).
Back in the day, really, really good computer keyboards used hall-effect switches - completely immune to dirt and dust,inherently bounce-free and would last “forever”. In the race to the bottom, these aren’t made anymore.
18
posted on
04/03/2015 8:50:02 PM PDT
by
The Antiyuppie
("When small men cast long shadows, then it is vsery late in the day".)
To: The Antiyuppie
They aren't made today but I still have one of those things working on a SWTPC 6809 computer I built to replace an Altair that I built while I was stationed in a much in the recent news southwest Asian locale. The old computer still encrypts things better than any modern one I have. Zibegniev Brezinski recalled us about a year before the American media began describing the Ayatollah Khomeini as a benign old holy man. The Jimmah Carter loving illegitimate drummed us out of the US Army. Foia the reports sent to the morons from Tehran. The keyboard was manufactured by an American company Microswitch, a part of Honeywell. Caddis the most elder
19
posted on
04/03/2015 9:39:13 PM PDT
by
palmerizedCaddis
(I'm not sure if Obama is worse than Carter, just that Barry is a lot dumber.)
To: The Antiyuppie
Love your tag line; can’t remember where it’s from.
20
posted on
04/03/2015 11:58:53 PM PDT
by
dsc
(Any attempt to move a government to the left is a crime against humanity.)
Navigation: use the links below to view more comments.
first 1-20, 21-22 next last
Disclaimer:
Opinions posted on Free Republic are those of the individual
posters and do not necessarily represent the opinion of Free Republic or its
management. All materials posted herein are protected by copyright law and the
exemption for fair use of copyrighted works.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson