"
SAN FRANCISCO Nike Air Max 97 Youth Canada , June 10 (Xinhua) -- A team of researchers has for the first time discovered magnetism in the 2-D world of monolayers, or materials that are formed by a single atomic layer.
The findings, published this week in the journal Nature, demonstrate that magnetic properties can exist even in the 2-D realm, opening a world of potential applications, as magnetic materials form the basis of technologies that play increasingly pivotal roles in our lives today.
""What we have discovered here is an isolated 2-D material with intrinsic magnetism Nike Air Max 97 Mens Canada , and the magnetism in the system is highly robust,"" said Xiaodong Xu, a professor of physics and of materials science and engineering at the University of Washington (UW). ""We envision that new information technologies may emerge based on these new 2-D magnets.""
Xu and Massachusetts Institute of Technology (MIT) physics professor Pablo Jarillo-Herrero led the international team of researchers who proved that the material, chromium triiodide, or CrI3, has magnetic properties in its monolayer form.
Other groups Nike Air Max 97 Womens Canada , including co-author Michael McGuire at the Oak Ridge National Laboratory, which is managed for the United States Department of Energy, had previously shown that CrI3, in its multilayered, 3-D, bulk crystal form Nike Air Max 97 Canada , is ferromagnetic. In ferromagnetic materials, the ""spins"" of constituent electrons, analogous to tiny, subatomic magnets, align in the same direction even without an external magnetic field.
However, no 3-D magnetic substance had previously retained its magnetic properties when thinned down to a single atomic sheet.
""You simply cannot accurately predict what the electric Air Max 97 Canada , magnetic, physical or chemical properties of a 2-D monolayer crystal will be based on the behavior of its 3-D bulk counterpart,"" co-lead author and UW doctoral student Bevin Huang was quoted as saying in a news release from the university in U.S. Pacific Northwest.
Atoms within monolayer materials are considered ""functionally"" two-dimensional because the electrons can only travel within the atomic sheet, like pieces on a chessboard.
The researchers used a special type of microscopy to detect a signature in CrI3, as in other ferromagnetic materials when a beam of polarized light is reflected off the material's surface, indicative of intrinsic ferromagnetism in an isolated monolayer.
And surprisingly http://www.cheapairmax97salecanada.com/ , in CrI3 flakes that are two layers thick, the telltale optical signature disappeared. This indicates that the electron spins are oppositely aligned to one another, a term known as anti-ferromagnetic ordering. Ferromagnetism returned in three-layer CrI3.
Yet to conduct further studies to understand why CrI3 displayed these layer-dependent magnetic phases, Xu noted that ""2-D monolayers alone offer exciting opportunities to study the drastic and precise electrical control of magnetic properties, which has been a challenge to realize using their 3-D bulk crystals.
China calls for solidarity, cooperation as SCO admits new members
Red alert for rainstorm in China's Nanjing City
Altay's isolation from railway network comes to an end
Rescue drill on sea in Xisha area held in south China
Fireworks explode at opening ceremony of 2017 Astana EXPO
In pics: wall painting in Anji County Buy Cheap Nike Air Max 97 Canada , E China
Chinese fisherman sticks to tradition of catching fish with ospreys
China's manned submersible Jiaolong completes 150th dive
" "
ST. PETERSBURG, Russia, Jun. 1 (Xinhua) -- The 21st St. Petersburg International Economic Forum (SPIEF 2017) opened here Thursday as participants called for a fairer distribution of globalization's benefits.
Under the theme ""In search of a new balance in the global economy"", the forum is expected to attract a total of 12,000 attendees from across the world, including heads of states and governments Cheap Nike Air Max 97 Canada Sale , business leaders and experts.
""An upturn in the global economy does not solve all problems. Fragility is everywhere. Population growth Cheap Nike Air Max 97 Canada Free Shipping , rapid urbanization, food insecurity, water scarcity, and above all climate change... These global trends are weighing on the fragilities and linked to conflicts in the world."" he noted.
Various discussions on the global economy, scientific and technological research and development Cheap Nike Air Max 97 Canada Clearance , Russia's economy and the world's economic prospects will be held during the the three-day forum.
"
Contract manufacturing in Mexico represents the requisite solution for companies who wish to gain the benefits associated with having their products produced by the country’s highly qualified workforce at a lower cost of labour than within the U.S employment market. By utilizing contracting manufacturing specialists in Mexico, companies can consolidate in-house expenditures such as me. Wholesale Jerseys Cheap Jerseys Cheap Jerseys Cheap Soccer Jerseys China Cheap NBA Basketball Jerseys Wholesale Jerseys China Wholesale Jerseys Wholesale Cheap Football Jerseys China Wholesale Adidas NHL Jerseys Cheap Nike NFL Jerseys Free Shipping