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New Material for Spintronics Discovered

Cpt_Corelli writes "Researchers at Uppsala University and the Swedish Royal Institute of Technology have discovered a new material with properties suitable for creating spintronic devices at room temperature. Previously this was only believed to be available at very low temperatures. The material is a combination of zinc oxide and manganite. The breakthrough is the cover item of the October issue of Nature Materials. If this new material proves viable for production there is an enormous potential for smaller and faster processors. Could this be the beginning of a new era in processor development?"

39 of 225 comments (clear)

  1. maharg's law by maharg · · Score: 2, Funny

    things will get faster

    --

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  2. Oh no! by Anonymous Coward · · Score: 2, Funny

    The subatomic part of the atom would store the information, and the electron would act as the bus to carry information in and out of the nuclear subsystem

    It's actually a disguised, mobile WoMD!

  3. Spintronics? by rjch · · Score: 4, Funny

    Why does this sound suspiciously like some washing machine technology gone totally mad?

  4. Spin Doctors by heironymouscoward · · Score: 5, Informative

    In English: using the spin on individual electrons as a way of storing data.

    Incredible, really. I could store the Library of Congress in the LCD pixels represented by this: .

    Several times, I suspect.

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    1. Re:Spin Doctors by QuantumFTL · · Score: 5, Informative

      Disclaimer: I'm just about done with my bachelors in Physics.

      In English: using the spin on individual electrons as a way of storing data.

      One of my physics professors here at Cornell does a lot of heavy spintronics research, and I can tell you that they are not even *CONSIDERING* using single electron spins to store classical information right now. Forget all the crazy quantum effects, and the fact that all the electrons nearby would interfere horrendously thorugh spin-spin interactions, thermal energy would screw that up in a jiffy. Think what happens to a magnet when it's heated up to the curie temperature (electrons are just tiny magnets). We don't even have a way to accurately measure the spin of one exact electron yet.

      As I understand it, the idea is actually pretty simple: instead of propagating electrical signals in a stream of electrons by altering their momentums (through the use of an EM field), you propagate a change in spin along the stream. Instead of speeding up or slowing down electrons, you're only flipping them up and down (you're actually flipping entire regions at that). Because of hte spin-spin coupling I mentioned before, this change in spin will propagate through the group of electrons *VERY* rapidly, much closer to the speed of light than a change in momentum would (by changing voltage, etc). So what we have is *MUCH* higher switching speeds with hardly any energy loss! So basically you have ultra-high speed chips that dissapate very little energy. Forget that watercooler in your laptop, you might not even need more than a tiny battery once spintronics becomes popular.

      Now, as with any technology spintronics has its set of challenges. The biggest one that I am aware of is the ability to inject spin properly when electrons are moving between different materials. Many crystaline structures can alter the spin state significantly on entry, thus destroying the signal (or at least reducing it). I am confident, however, that many of these problems can be solved, especially given that spintronics is provably much better than electronics for computing tasks. Just look at the enormous number of problems the semiconductor industry has already solved in the last 40 years. Add to that the hope that all of this could work at room temperature, and well, it's very exciting to say the least.

      So once again, we're not talking about individual electron spin. The only computing paradigms I'm aware of that use spin of individual particles are Quantum Computers (which do not behave the same algorithmically as classical computers) which are an entirely different story.

      Cheers,
      Justin

  5. What we need now by Anonymous Coward · · Score: 3, Funny

    Diamond based, nano-molecuar, photonic, quantum computers with Spintronics also in a big bewulf cluster and runing Linux.

  6. Bad joke of the day by xaoslaad · · Score: 5, Funny

    Does that make the people who discovered this Spin Doctors?

    whacka whacka whacka

  7. Previous record. by eddy · · Score: 4, Interesting

    I read that the previous record -- from just a year or so back -- was -101c.

    This is apparently huge, if the PR-blitz is to be believed.

    --
    Belief is the currency of delusion.
  8. In abstractio by Seehund · · Score: 5, Informative

    Does posting a link to the Nature Materials abstract count as karma whoring, when there's maybe only three people here who would understand what it says? ;)

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  9. 50Ghz processors... by MosesJones · · Score: 5, Interesting


    Here we come, won't that be great. 10Mfps in Quake4D, milliseconds from start to crash in windows.

    But still connected to a low bandwidth connection (2Mbps) to an unreliable network with high contention rates and collisions.

    Fast processors ceased to become something to get excited about since about 1999, 90% of people don't need them, 8% need more memory instead, and the final 2% do nuclear and climate simulations, work in industrial modelling, or SFX and animation.

    --
    An Eye for an Eye will make the whole world blind - Gandhi
    1. Re:50Ghz processors... by JaredOfEuropa · · Score: 4, Insightful
      work in industrial modelling, or SFX and animation.
      Don't forget, faster processing and faster hardware is what may allow everyone to do things with SFX and high-end animation. The same happened with video editing, CAD, real-time audio processing etc. etc; at one time these were things for high-end computers too expensive for the hobbyist, but these days everyone is doing them.

      Once we get the faster processors, we'll find uses for them.
      --
      If construction was anything like programming, an incorrectly fitted lock would bring down the entire building...
    2. Re:50Ghz processors... by JanneM · · Score: 2, Insightful

      Um, do I have to?

      I have a digital camera. I use it quite a bit. I _never_ edit the images, despite having the tools and ample computing power to do so. What I do is take a bunch of pictures, and throw away most of them. The rest I use in one way or another. Very few are actually saved semipermanently. And as far as I know, none in my circle of aquaintances edit their pictures either.

      The mac-toting people I know have all enthused over the video editing tools they have. None of them have ever actually used them. Editing video is like editing still images, but much more demanding in time.

      Doing SFX is even worse; it implies an artistic and narrative idea to be expressed, not just exposed. Like most of the people I know, I could not express myself out of a wet paper bag. I have no interest in actually creating movies, with or without FX, and I would likely shoot myself rather than being exposed to any creations from my normally talented (ie. no at all) friends. Holiday pictures are bad. Amateurishly edited holiday mmovies with cheesy special effects are enough to make people clinically depressed.

      My point? This new "killer app" for more processor power isn't one. Great application - for the small minority that have the interest, talent and time to actually create stuff with it. A non-issue for the vast majority.

      --
      Trust the Computer. The Computer is your friend.
  10. does that finding... by dcordeiro · · Score: 3, Funny

    does that finding has something to do with a arm and a very complex processor found crushed in a automated factory ?

  11. Re:*kneeling down* by mothrathegreat · · Score: 2, Informative
    I, for one, welcome our new spintronic Overlords!

    SLAP!!!

    At least choose a fresh quote, how about... "Professor, without knowing precisely what spintronics is / Reading TFA, would you say it's time for our viewers to crack each other's heads open and feast on the goo inside?" Professor: "Yes I would, Kent.

    --
    Extended Warranty? How can I lose!
  12. Moore's Law rescued again! by phil+reed · · Score: 4, Funny

    Gordon Moore heaves a sigh of relief.

    --

    ...phil
    "For a list of the ways which technology has failed to improve our quality of life, press 3."
  13. Wowsers! by leery · · Score: 2, Funny

    Wow #1: MR hard drives already use spintronics?!

    Wow #2: MRAM = nonvolatile memory 50 times faster than DRAM?! AND 10 times denser?!

    Wow #3: MRAM in production by 2005?!

    Does this spell the end for our Dynamic(RAM) Duo? Tune in tomorrow, because it sounds like everything's going to change overnight!

    Wowsers!

    --
    "This is not a sig." -- R.
  14. A pedant writes... by Hittite+Creosote · · Score: 5, Informative

    Md-doped means Manganese doped, not Manganite. Manganese is an element, Manganite is a mineral, MnO(OH).

  15. Re:What does this mean? by grolaw · · Score: 2, Informative

    Short answer: new method of using physical properties of electrons to reduce the travel time lag imposed by c and faster data state identification with less power could result.

    Actually, it isn't that difficult. Our present systems use electrons (maximum speed is "c", or 186k/mi/sec) to carry or set data states (0,1). The electron has a few other properties that could be explored as a mechanism for data storage. This piece suggests that the "spin" state of an electron could become a viable mechanism (the system could work in less than super cold environments) for creating, reading and writing data states.

  16. Units of Measurement by heironymouscoward · · Score: 4, Funny

    But, the LOC is the standard unit for measuring unquantifiably huge amounts of storage since (a) no-one knows exactly how big a LOC is, so they cannot dispute your estimate, and (b) the LOC always gets larger, and thus the estimate of "I can fit N LOCs into that space", where N is an integer between 1 and 100, remains accurate despite the logrithmic nature of storage growth.

    I for one have never been able to convert LOCs to bushels, and I have no intention of starting now!

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  17. A dyslexic pedant writes... by Hittite+Creosote · · Score: 2, Informative

    Ahem. I meant Mn-doped.

  18. Re:So this means.... by MoP030 · · Score: 5, Funny

    No, it means when the benefits of spintronics have been exploited research will proceed to store information in quarks and whatever lies beneath, data transfer will be instantaneous through some weird particle entanglement. And someone will say "6*10^23 bits inside a few grams of silicon will be enough for everyone", and few years later he will be laughed at.

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  19. Slashdot effect on electricity?? by locknloll · · Score: 5, Funny

    At the moment (2:30 PM CET) Southern Sweden is without electricity due to a giant power failure. So either this discovery already starts showing its evil consequences, or the Slashdot effect now reaches further than just web sites...

    --
    -- Power corrupts, but PowerPoint corrupts absolutely.
  20. It'll have to join the queue by You're+All+Wrong · · Score: 4, Funny

    "Could this be the beginning of a new era in processor development?"

    It'll have to join the queue, _behind_ optical computers and quantum computers, I'm still waiting for what they promised...

    YAW.

    --
    Your head of state is a corrupt weasel, I hope you're happy.
  21. magentic memory is not a new idea by jez_f · · Score: 2, Interesting

    Core Memory was around a long time ago. It provided non-volatile memory for a computer.
    Isn't this just a molecular version of this idea?

  22. It gets smaller and smaller... by Serious+Simon · · Score: 2, Funny

    I hope by the time they make an actual product out of this, the paperless office will have become a reality. Otherwise, I'll have a big problem finding my PC on the desk.

  23. Remember ferromagnetic memory by panurge · · Score: 4, Interesting
    That was going to revolutionise memory a few years back? But didn't. Remember diamond semiconductors that were going to revolutionise processors, from around 1990? But didn't. Remember GMR heads that were going to revolutionise hard drives? Oops, they did. Didn't fix the slow random access data rate much, but changed the paradigm for backup devices.

    Perhaps this is going to be the one that is going to change the bottleneck in the system from the slow memory to the newly slow processor. And the very slow HDD. And the very slow I/O.

    Having made which cynical observation, I wonder what impact this could have on database client server? Keeping the database in memory? Multiway processors? It looks like the only people really able to make use of the technology are going to be at IBM, and possibly Sun.

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  24. Re:MOD POST AS "SPECULATIVE" by heironymouscoward · · Score: 4, Insightful

    Please read the comment on the nature of the LOC unit. Thank you.

    By the way, the number of electrons in a gram of phosphorous is about 2e22. Assuming 1 gram of the stuff on an monitor, and a 1600x1200 resolution, that's about 1e16 electrons per pixel, and assuming 1 bit per electron (somewhat beyond the state of today's spintronics, but not unimaginable), that's 1,250,000 Gb of data.

    Enough for a few LOCs, I believe.

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  25. Effect on programming and OS? by eggoeater · · Score: 2, Interesting

    I remember reading an article on this technology about 15 years ago. The article said it would hold a few terabytes non-volitile in the size of a sugar-cube (2cm^2).
    My immediate reaction was how would this affect programming and OS when the line between memory and storage is disolved. Not sure if the interface to CPU would be as fast as current memory, which means it would just be a storage mechanism.
    If it could be used for primary memory, what happens to files and how they are viewed (logistically not physically). Would we need 'virtual' files on a RAM-disk or something more abstract?
    Time will tell.....
    -Steve

  26. "Not previously available"? Explain please! by Zocalo · · Score: 3, Interesting
    According to the story, the universities have developed a new material for Spintronic devices, something not previously available at room temperatures. What? You mean like IBM's harddrives (from 1997), or the Infineon MRAM it hopes to being to market next year, both of which are mentioned in one of the linked stories. Surely both the harddrive and MRAM consist of "room temperature" devices, albeit most likely of a different material.

    New material. Got that. But what makes it so special?

    --
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  27. Explanation... by Cpt_Corelli · · Score: 4, Informative
    As another poster mentioned earlier, this type of material has been creted earlier, but had to be kept at a temperature below -101 deg Celsius to function. A more detailed look at this field is available here.

    This article (from feb 2003) mentions that one of the major obstacles is making it work at room temperature which now has been achieved. Apparently this is a huge breakthrough.

  28. Not new, improved by Hittite+Creosote · · Score: 3, Informative

    Just to be clear, they aren't the first to look at Mn-doped ZnO as a spintronic material - people have been working on this material since the 1990s. Theoretical work by researchers at Tohoku University in Japan and others predicted that Md-doped ZnO could work at room temperature. After which, Others started work investigating the properties, and trying to improve the fabrication of the material to reach ferromagentism at higher temperatures.

  29. Don't forget... by StarKruzr · · Score: 3, Interesting

    It uses less power, too. MRAM is going to revolutionize every aspect of computing... big-horsepower things like PCs, yes, but ESPECIALLY PDAs.

    I can't wait.

    --

    +++ATH0
  30. Swedish by Anonymous Coward · · Score: 2, Funny

    Am I the only one who clicked on the Swedish link and got a flashback to muppets?

  31. 150 degrees Celcius by thorgil · · Score: 4, Informative

    The new material is said to keep it special abilities at temperatures up to 150 degrees C.

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  32. Re:But will they teach me to type... by Xilman · · Score: 2, Funny
    Perhaps your subconscious is trying to tell you something.

    It's a pity Mendeleevium has such a short half-life, or you could try the experiment and see if it works even better than Manganese.

    Paul

    --
    Lasciate ogne speranza, voi ch'intrate
  33. And just like when "everyone" does photo editing by Nino+the+Mind+Boggle · · Score: 2, Insightful

    . . . or composes their own music on their computer, the vast majority of it sucks.

    But the fact that it allows anyone with the desire to get into it without a high "cost" of entry, that's a good thing. Used to be that everyone made their own music (no radio, no records), they didn't need a "professional" to do it for them. Yeah, not everyone was a Padrewski, or whatever, but they did it themselves, and they liked it, by gum. A little more of a do it yourself mentality wouldn't be a bad thing.

    --
    ------ "Darn floor. Big bite." (Koko the gorilla's best attempt at explaining the experience of an earthquake.)
  34. Um, nope by Anonymous Coward · · Score: 2, Interesting

    It means that in 5 years, Moore's Law will stall out. Industry giants like Intel will refuse to make the huge investment to bring spintronics and other technology to market. Moore's Law will only continue at a crawl, and it will become only a function of heat sink size and weight. Processors 10x faster will only be so because their HSF will be 10x bigger. Prepare for extremely heavy desktop towers that become hot to the touch because the case itself becomes the heat sink.

  35. New material for what?! (OT?) by jabber01 · · Score: 2, Funny

    At first glance, I misread that as reading "New Material for Sphincters Discovered".

    The obvious comment, which I was (and obviously still am) morally compelled to make was: "Well it's about time! That manned mission to Uranus has been on the drawing board for decades!" or something to that effect.

    Yes, well... As you were.

    --

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  36. The answer: slower code. by hypnagogue · · Score: 2, Funny

    In the eternal struggle between hardware engineers trying to make everything faster, and software engineers trying to make everything slower, the hardware engineers have struck yet another grave blow.

    Fortunately, I'm hard at work on a new O(n^2) sort algorithm:

    1) Completely randomize list.
    2) In order traversal looking for out-of-order entries. If one is found return to step 1.

    It's no slower than bubble sort, but it eliminates those pesky "best cases".

    I'm also planning an operating system that uses an XML-based executable format, and "network RAM" protocol that uses XSLT to access memory paged over an HTTP connection.

    Admittedly, it's a big project. We are going to need lots of volunteers if we want to get there before Longhorn.

    --
    Liberty you never use is liberty you lose.