Could Magnonics Spark the Extinction of Electronics?

Electronics work by shuffling electrons through
circuits and logic gates to perform calculations, but in doing so they have to overcome resistance,
which wastes energy and generates heat. So instead of forcing electrons to push each
other along, what if we just made them do the wave? Electrons have a negative charge; it’s a
fundamental part of what they are. They also have a property called spin, and
this spin can be oriented either up or down. If the spins of the outermost electrons in
an atom are aligned the same direction, they’ll generate a magnetic field,
making the atom a tiny magnet. If all the atoms in a material have their
magnetic fields aligned the same way, the material will act as a magnet. (I could make the Insane Clown Posse joke, but I won’t. I’m not going to do it. It’s 2018 and we’re officially laying
the magnets joke to rest.) Anyway, it’s possible to reverse the direction
of the magnetic field of an atom in a material by applying energy. When that happens, the strength of the magnetic
field in that area drops a bit; it’s effectively the same as a partial reversal
of all the tiny magnets in that group. This partial reversal spreads, like a crowd
doing the wave at a stadium, passing the energy that dampened the magnetic field along. This wave of energy can also be thought of
as a particle, called a magnon. Just like electrons in a circuit, a magnon
can be used to carry information, with some advantages over moving electrons, like using
less energy and generating less heat (which is good, because sometimes I worry about what
my laptop is doing to me when it’s atop my lap.) But while the silicon circuits that conduct
electrons are relatively easy to make, the magnets that transport magnons are not. One reason we’re still using electronics
instead of magnonics is because the media that carry magnons well are notoriously hard
to make and harder to combine with other materials. Currently most magnonic researchers use a
material called yttrium iron garnet — or YIG — to carry the waves. A film of high quality YIG has to be grown
on a matching lattice structure like gadolinium gallium garnet. Hard to say, harder to combine
with other substrates, like silicon. So researchers started exploring elsewhere,
and came across a material first made in 1991. This material, called vanadium tetracyanoethylene,
was the first carbon based magnet that was stable at room temperature. Well so long as it wasn’t exposed to oxygen,
in which case it can burst into flame. But aside from the surprise fire, it’s great
for studying magnonics, keeping the magnons just as stable as YIG while they persisted
for record-breaking times. If researchers can make a practical material
for magnons to travel through, then the next step is making digital logic gates like the
transistors in a chip. Fortunately researchers don’t have to figure
out entirely new transistors that can respond to magnons. It’s possible to convert a magnon into an
electrical signal thanks to something called the inverse spin Hall effect, and then it’s
just a matter of sending electrons through the transistor like we’ve always done. This means researchers could combine magnonics
and electronics, bringing them one step closer to smaller, faster, more efficient computers. For now though researchers are exploring other
materials that might work even better than vanadium tetracyanoethylene. Hopefully they find one that doesn’t catch
fire when you crack a window. Dive deeper into the future of computing and
watch this video here, where I explain how using photons in computers instead of electrons
could make light-speed computing possible. Don’t forget to subscribe for more science
and tech videos every week, and thanks for watching!

100 comments on “Could Magnonics Spark the Extinction of Electronics?”

  1. NiX aKi says:

    Your face looks longer because of the beard.

  2. Lewis Massie says:

    But what's the advantage of them that makes it worth the hassle to use? Did I miss that bit?

  3. Kazuto Hououin says:

    wait, i cant understand.. then if we used that… it will create a magnetic field?…. then it must seperate from other magnetic stuff that might affect the flow….?

  4. Ty Rosales says:

    Magnonics is using magma to incinerate electronics.

  5. Joseph Schultz says:

    Be honest: how many takes did this video take? Can't believe all those terms were said flawlessly the first go-round!

  6. Left TechnoLibertarian Party of YouTube says:

    This idea may bring researchers "one step closer to smaller, faster computers."

    Yes!! Finally we can figure out how to make these room-size behemoths I am typing on a bit smaller! I hate having to book time at my university's computing research lab where the computer is housed just to watch utube videos. In just a few thousand years I bet magnonics will enable us to shrink computers so they fit in out pockets. We live in exciting times!

  7. Assia Carpentier says:

    Painting extensive peak strengthen load connection exhibit danger mom.

  8. manolis1080 says:

    I thought spintronics were the next big thing,did they went out of fashion?

  9. USS Richard M Nixon says:

    Dat wandering eye!

  10. Robert Bassinder says:

    The thought of electrons moving, especially in Alternating current, is more of a bucket brigade action but the heat created is limiting. But so is the decay of magnon field over space. So wed need to entangle but also learn gluon pairing and gluon training. If theyre willing..

  11. Thezuule says:

    MAGNETS, HOW DO THEY WORK!??!?! !??!!!1111one

  12. Alex Taylor says:

    Seeker can u please hire writers who are actually scientifically literate so that the people who watch these videos are not misinformed.

  13. Honestmicky says:

    Excellent video, thank you, much appreciated : )

  14. Art Vein says:

    Things are only complex to fuel capitalism. Now you're saying we could've used magnets. Well Earth is a giant magnet. Why am I paying First Energy?

  15. tkzsfen says:

    what's the joke?

  16. jrspringston says:

    Lol I was hoping you'd make the magnets joke. The nod was still good though 🙂

  17. Jean Roch says:

    Funny, I heard "can burst into flames" and my first reaction was "it'll be right at home in a MacBook Pro". Now I'm recording this for posterity because I'm sure it will happen.

  18. Frederick Rhodes says:

    Doesn’t a spin and a wave make a spiral?

  19. pneumatonic says:

    Magnon… Kinda like Cro Magnon… What will you cave-people Atomists and your ‘all for the 1 %’ materialism come up with next?

    Here’s something more original and useful to all than your magnon, Dude: I dream of a day when the minds of men have long been liberated of the imprisonment of your dead-end, world-destroying, war-inspiring, materialistic, anti-spiritual perspective. Gone then will be the whole hoard of deceptions which your materialism consequentially spawned: No more electron, magnon, phonon, photon, proton, neutron, quason, thermon, plasmon, planon, ploton, pluton, pisson… and the list goes on, and on, and on… NO MORE!

    Yet all the while, the more ancient truth, and the occulted technology based thereon, has endured the winter of your reign, Atomist. That more ancient and noble truth expresses more simply a spiritual reality based upon the ubiquitous, luminiferous aether, and though you Atomists tried to hide this noble truth from the world, the wise and awakened have already there arrived.

    And the death bell tolls not distant, and the days are small numbered still for the irreal progeny spawned of materialism. Down with the sickness that has lead us all to only better suffer and die. A terminal end for all the mental confusion, deception and illusion, head hurtin’ and heart-bruisin’ that you Atomists and your Satanism inspire.

    A New Day Dawns.


  20. Dan Banks says:

    My brain is bleeding now…😖

  21. puncheex2 says:

    I saw one description of a futurific personal computing device where the "chips" were just glued to a board. Excepting the provisions for ground and power supply, all the other interactions were taken care of by radio or light interactions between the chips inside the device. Magnonics might be such a communications path.

  22. dec2 says:

    Oooh a talking goblin!

  23. Xoxocube says:

    I wonder who he works for?

  24. HD Candela says:


  25. Chad says:

    It can be thought of as a particle, but it's absolutely not a particle.

  26. Fenny Lopez says:

    Magnonics=ugly name
    Magnatics=cool af

  27. Gvsl Keerthana says:

    This may be irrelevant, but could you please make a video on "how polymetallic nodules are formed" and considering ferrous properties of manganese and nickel why don't they use relatively powerful magnets to easily extract this rich resource from seabed?( sometimes in combined form Mn do have magnetism)

  28. CYI3ERPUNK says:

    the big problem here is how to protect magnonics from strong external magnetic fields destroying them instantly

  29. TOM Vlogs says:

    sounds like ufo technology

  30. moosefactory133 says:

    The ability to manipulate and control what exist in nature is amazing. I wish I had a crystal ball to see what technologies exist in a hundred years or even in ten thousand years.

  31. Jason Szabo says:

    I don't get the ICP reference….

  32. APE MAN says:

    I am a Savage
    I have Animal Magnetism
    All Beautiful Women fall in Love with Me

  33. Thomas h says:

    If you got the joke

  34. cavestory77 toxic melee fan says:

    could this help us reach landauer's limit?

  35. xKAITA says:

    psh.. scientists.. gettin me pissed

  36. jsadecki1 says:

    He looks electronic

  37. DJ Porter says:

    TL;DR: No, no we can't.

  38. omar66277 says:

    They need better terminology first!!

  39. Stammer6 says:

    I'd never even heard of Magnonics before. Like, I literally didn't even know that was a field of science. Now I just want this funded like crazy!

  40. Mark Serrano says:

    What about magnetic interference?

  41. Thomas Davis says:

    I heard Canadian Tetris somewhere in there.

  42. Bob Edwards says:

    WHERE can I go to study this? IE what universitys?

  43. Sean Janda says:

    Well I suppose I'm now a pro-magnon man

  44. Mass Debater says:

    I'm not listening to a guy who can't even master basic hygiene or who can't be bothered to maintain any grooming and gosh golly what is with those ears? I don't like to mug people off but you deserve it for how lazily you present yourself

  45. Ryan Martinez says:

    Magnets are half the answer LOL

  46. American Freedom-Fighter says:

    I need to poop.

  47. Neuterednations says:

    Try building an arc furnace using magnons, a plasma cutter, a laser etc, hmmmm, and besides, do magnons travel faster than light?

  48. Zac Harrold says:

    This really needs numbers. Electromagnetics is a very complicated field to study and it's not so simple to separate the concept of magnetics from electronics. It sounds interesting, but colour me skeptical

  49. erik cyree says:

    u wot m8

  50. Peruvian drummer says:

    seeker plz stop asking ur employees to deliver their joke quota per videos
    makes terribly cringy videos

  51. Nick F says:

    I think they should try graphine

  52. ZeInfidel says:

    Magnonics is just an offshoot and new name for Spintronics. It's easier to get funding for a "new"field rather than using a traditional name.

  53. grtelli says:

    Say what??? 😦

  54. ᗪㄩ爪乃卂丂丂 says:

    no because we dont have magnets everywhere around us all the time, magnetic field is different though.

  55. Impretzive says:

    This changes everything!

  56. Alex Roberts says:

    In the linked video Julian said that electrons travel at 100 km/second. However, to my understanding the pressure wave that transmits electricity travels at 50-70% of the speed of light (I checked this with a 30+ years experience engineer on Quora). Basically it's one electron pushing another one pushing another one … the term pressure wave is my own invention. But interestingly, the "pressure" travels from one electron to the next faster than the electrons travel themselves. More notably in AC currents, the electrons never move to the other end of the circuit, they are only wiggled from side to side like on an imaginary antenna, transmitting this wave to the other end where it gets converted into usable energy. That's also the reason there are no shockwaves in electronic media like in air where the air molecules travel faster than their pressure is transmitted and neighboring air molecules don't know what's coming. I'm not really sure exactly what the benefit of magnons or photons would be in terms of speed of transmission, although I can see that copper has a resistance which leads to energy losses and that may be lesser with magnons in some imaginary material or in a laser, potentially.

  57. Ail'enduril says:

    stop with the idiotic jokes

  58. AWARHERO says:

    Well.. that's all nice and sweet… Until Quantum computers burst their Magnonics bubble…

  59. OldGamerNoob says:

    kinda like how signals move in neurons, in waves, just waves of electrical charges instead of magnetic polarization.

  60. polla2256 says:

    All this video demonstrates is the fact that there is a principle that may do something if but we can't because…utter shite

  61. crash41596 says:

    What happens when ur magnonic device gets magnetic interference? Will the device malfunction?

  62. yaggle fraggle says:

    light based computers are better

  63. hjkhjk says:

    Will this reduce overheating?

  64. MICHAEL CRASH says:

    I demand all red heads be burned at the stake

  65. Flippusmn says:

    I'm an electrical engineer. No, ICP is still correct. Magnonic mechanics is one very small piece of a much bigger puzzle…

  66. Mr. Toelicky says:

    Over my head, what's the insane clown posse joke? I googled icp magnets and a song called miracles came up. Shitty ass song about being stupid and considering the natural world as magic and miracles. Whatever makes you happy I guess

  67. Rojer Mathew says:

    Great video 👌🏾👌🏾👌🏾

  68. Omar Guerra says:

    They do put quantum in front of everything xD

  69. Rahul Sarkar says:

    make an experiment where we can hear tesla coil music but that music should be of 432 hz. i know its weird but i dont have the materials to induct that experiment.

  70. mrdabbleswithpotion says:

    With ENR, I wouldn't say there's "shuffling", dumbass. I can understand that when everything is allowed to run in parallel, people can't see the pattern & they may as well be looking at a Rube Goldberg machine. Have the animation only run a single thread & you'd see the blocks are treated as a contiguous series of blocks that are never swapped or shuffled or have anything between them inserted, ever. Then you'd probably see what each step is for.

  71. Dragon born says:

    Random hate comment that has nothing to do with the video 😠😠😠😠😠😠😠😠😠😠

  72. James Bra says:

    Actually this is not thought out enough. Electronics will be killed by photonics and optical computing. Optical computing is more practical for neural networks and high speed communications anyway. Quantum computing I feel will come much later because the actually physics of it make mass production very expensive. It's not to say that electronics will just disappear, but it will be largely phased out in much of the hardware. Optical computing systems will be much smaller, much cooler, and much faster, therefore proving Moore's Law as their inception will be the next step.

  73. red cat says:

    I am waiting for gravitational field use. Gravonics

  74. Anselm Andrian says:

    Thank you ! Best kind greetings . Anselm Andrian .

  75. Johan Fouche says:

    You don't quite understand. The transistor gate is merely there to pass a signal through, or not to. Doing this with magnetic force, means the signal is already passed along. Which makes this so good. No more transistor gates needed. AKA switch. on……off…….

  76. Zantagiro7 says:

    the secret is HE is the programmer of the universe yet worthless scumbags like you want to go against HIM thinking you would win with the false one? if only you comprehend HIS tricks! (comment to the dumbest scumbag in the universe / eric schmidt)


    but DO they work mannnn?? ICP…woogie woogie wooooowooooo

  78. Discrimination is not a right. says:

    Is this available in English?

  79. William Readling says:

    Extinction of electronics? That my friend is absurd.
    Electronics don't just do digital dances. Electronics power everything but IC engines. Analog is far from dead, it just does not do much information processing these days.

  80. J C says:

    simply magnetic current, no need to overcuck this one

  81. I Dunno says:

    Fucking magnets thoguh. How DO they work?

  82. Quetzel Coatl says:

    graphene! and sodium iodide for all!

  83. RMF says:

    I was pleasantly surprised to learn something completely unknown to me.

  84. Scribe13 says:

    Dude, all I asked was if i could plug in my charger

  85. Gofish says:

    Why dont you use that carbon material and put the circuit board in a vacuums chamber

  86. Richard Rackley says:

    easy… go to Wakanda and get vibranium, perfect for magnonics.

  87. YANG MONEY 2020 says:

    fukin magets…. how do they work?

  88. john creed says:

    Just build the phones in a vacuum and air tight seal them!! Then put loads of warning labels on the phones saying "NEVER EVER, SELF REPAIR!!!!" or "Go to Moon, then! self repair"

  89. juuse94 says:

    Man I can't ever watch a video by these numales. Soy boys to the max.

  90. Dario Pagliaccia says:

    Love the New look 🙂

  91. Roger didit says:

    Shhhh. Let's keep THIS SECRET FROM THE CHINESE!!

  92. Adrian Martin says:

    Thanks ginger pubes

  93. Gary Gagnon says:

    Bright LIGHT

  94. savcob says:

    what is the magnetic field made of ?

  95. Dankman9 says:

    We don't need the very unsciency attempts at being funny or relatable at the end of the videos e.g. the window cracking comment.

  96. Charlie Nixon says:

    Which is best? Magnonics or qubit computing? Like for magnonics, dislike for qubit computing (quantum computers)

  97. Collin F says:

    And just wtf would happen if a magnet got too close to my magnonic computer?

  98. Todd Thomas says:

    could you do a video on phonons?

  99. Grand Master says:


  100. Richard Deese says:

    Yeah… I love that inverse-spin Hall effect. I used to use it all the time to escape the Hall monitors during class… 𝖙𝖆𝖛𝖎.

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