New Storage Device Is Very Small, at 12 Atom

Posted: 13 Ianuarie 2012 in IT

Un bit inmagazinat in 12 atomi – super OK realizare

Această prezentare necesită JavaScript.

<object id=”flashObj” width=”486″ height=”412″ classid=”clsid:D27CDB6E-AE6D-11cf-96B8-444553540000″ codebase=”http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,47,0″><param name=”movie” value=”http://c.brightcove.com/services/viewer/federated_f9?isVid=1&#8243; /><param name=”bgcolor” value=”#FFFFFF” /><param name=”flashVars” value=”videoId=1386933524001&playerID=2227271001&playerKey=AQ~~,AAAAADqBmN8~,Yo4S_rZKGX0rYg6XsV7i3F9IB8jNBoiY&domain=embed&dynamicStreaming=true” /><param name=”base” value=”http://admin.brightcove.com&#8221; /><param name=”seamlesstabbing” value=”false” /><param name=”allowFullScreen” value=”true” /><param name=”swLiveConnect” value=”true” /><param name=”allowScriptAccess” value=”always” /><embed src=”http://c.brightcove.com/services/viewer/federated_f9?isVid=1&#8243; bgcolor=”#FFFFFF” flashVars=”videoId=1386933524001&playerID=2227271001&playerKey=AQ~~,AAAAADqBmN8~,Yo4S_rZKGX0rYg6XsV7i3F9IB8jNBoiY&domain=embed&dynamicStreaming=true” base=”http://admin.brightcove.com&#8221; name=”flashObj” width=”486″ height=”412″ seamlesstabbing=”false” type=”application/x-shockwave-flash” allowFullScreen=”true” swLiveConnect=”true” allowScriptAccess=”always” pluginspage=”http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash”></embed></object&gt;

Today’s hard drives record data using a tiny electromagnet to align the spins of atoms in a metallic film that rotates below it. When the spins of about a million of these atoms are aligned in the same direction, their collective magnetic field can be detected by the electromagnet on its next pass. This means the million-strong group stores a single bit of data – a 1 or a 0 in binary code.

Unfortunately, that collective magnetic field also affects adjacent bits, limiting how closely they can be packed. Now Andreas Heinrich of IBM Research Almaden in San Jose, California, and colleagues have made the smallest magnetic bits yet – and they can be packed more closely together than today’s much larger bits.

The trick is to make adjacent atoms spin in opposite directions. This alignment, called antiferromagnetism, does not generate an external magnetic field.

http://www.youtube.com/watch?v=hpKMShooDBo&feature=player_embedded

Stocarea unui bit de informatie in 12 atomi(foto-video)

Cercetatorii de la IBM au reusit stocarea de date miniaturala la nivelul scarii atomice in cazul materialelor antiferomagnetice. Noile cercetari ale specialistilor de la IBM, permit stocarea unui bit de informative in 12 atomi, fapt care va conduce la realizarea unei noi clase de nanomateriale pentru o generatie noua de cipuri de memorie si unitati de disc, deschizand si mai mult era calculatoarelor cuantice, scrie <a href” http://www.nytimes.com/2012/01/13/science/smaller-magnetic-materials-push-boundaries-of-nanotechnology.html?_r=1” target=”_blank” The New York Times</a>.

Foto1

Stocarea datelor la nivel microscopic va revolutiona comunicarea si stocarea informatiilor in viitor, este concluzia studiului publicat in <a href=”http://www.newscientist.com/article/dn21351-smallest-magnetic-memory-uses-just-12-atoms.html” target=”_blank”>Newscienctist</a>.

Foto2

La ora actuala un computer obisnuit stocheaza un bit de informatie in aproximativ un million de atomi. Cercetarile specialistilor de la Centrul de Nanotehnologie Magnetica din cadrul Universitatii Stanford, bazandu-se pe un studiu realizat de Institutul de Fizica Aplicata de la Universitatea Hamburg, Germania au reusit superminiaturizarea stocarii informatiei, la scara atomica. Astfel se deschida noua era a informaticii si structurarii computerelor la nivel atomic, cuantic.“Materialele magnetice sunt extrem de folositoare, fiind de o importanta strategica pentru multe ramuri ale economiei, dar in prezent nu sunt folosite la intreaga lor capacitate” a declarat Shan X. Wang, directorul Centrului pentru Nanotehnologie Magnetica din cadrul Universitatii Stanford. Verificarea aranjarii atomilor, s-a realizat la temperaturi aproape de zero grade Kelvin, cu ajutorul microscopiei electronice. Conform opiniei specialistilor de la IBM s-ar putea realiza stocarea unui bit de informatie si la temperatura camerei dar pe un numar mai mare de atomi, minim 150. Era informaticii cuantice este deschisa, iar competitia va fi acerba intre laboratoarele de elita din domeniul fizicii, care sunt antrenate in cercetari in domeniul nanomaterialelor magnetice la scara atomica. Totusi super miniaturizarea la nivel microscopic a ajuns aproape de limita, nanoelectronica nu va putea depasi barierele impuse de un atom.

 

<object style=”height: 390px; width: 640px”><param name=”movie” value=”http://www.youtube.com/v/hpKMShooDBo?version=3&feature=player_detailpage”><param name=”allowFullScreen” value=”true”><param name=”allowScriptAccess” value=”always”><embed src=”http://www.youtube.com/v/hpKMShooDBo?version=3&feature=player_detailpage&#8221; type=”application/x-shockwave-flash” allowfullscreen=”true” allowScriptAccess=”always” width=”640″ height=”360″></object>

 

 

 

 

Anunțuri

Lasă un răspuns

Completează mai jos detaliile tale sau dă clic pe un icon pentru a te autentifica:

Logo WordPress.com

Comentezi folosind contul tău WordPress.com. Dezautentificare / Schimbă )

Poză Twitter

Comentezi folosind contul tău Twitter. Dezautentificare / Schimbă )

Fotografie Facebook

Comentezi folosind contul tău Facebook. Dezautentificare / Schimbă )

Fotografie Google+

Comentezi folosind contul tău Google+. Dezautentificare / Schimbă )

Conectare la %s