Featured Research

from universities, journals, and other organizations

Creation Of Tiny Magnets May Lead To Big Changes

Date:
March 12, 2002
Source:
University Of California - Riverside
Summary:
Researchers Guy Bertrand and David Scheschkewitz of the University of California, Riverside, and colleagues are opening new doors to understanding magnetic properties. On the other side of these doors lies the potential for developing new medical imaging devices and implants, efficient electrical conductors and non-metallic magnets.

Magnets are commonly found holding up photographs on home refrigerators and are perhaps best known as northward pointing needles in compasses. But they are far more common; indeed, their use is ubiquitous in industry and consumer products. Today a car uses no less than 300 parts that use the phenomenon of magnetism. Scientists are engaged in a search for new materials featuring magnetic properties and in understanding the basic fundamentals of magnetism.

Related Articles


Now, researchers Guy Bertrand and David Scheschkewitz of the University of California, Riverside, and colleagues are opening new doors to understanding magnetic properties. On the other side of these doors lies the potential for developing new medical imaging devices and implants, efficient electrical conductors and non-metallic magnets.

Put simply, all substances are formed by bonding atoms together using the atoms' valence electrons (valence electrons are electrons that are actively involved in chemical change). When one of these electrons is not used to form a bond, it results in a non-bonding electron, also called a radical. Magnetism results from the presence of many of these radicals coming close to one another.

Several research groups worldwide have shown that materials based on "diradicals" will be even more magnetically active. In a diradical, two atoms which are close to each other have electrons ready to form a bond. And indeed, the difficulty is that usually the bond is formed, resulting in no magnetism.

The UC Riverside chemists and their colleagues report in the 8 March 2002 issue of Science that they have prepared a "singlet diradical" where the two non-bonding electrons do not combine to form a bond. "The substance still remains a diradical," says Bertrand. "We have been able to obtain this diradical using the specific properties of two non-metallic elements boron and phosphorus."

Until now, the most stable singlet diradical, which can be used as a basic building block for making materials, had a lifetime in the order of micro seconds at room temperature. The new singlet diradical, on the other hand, is stable at room temperature, both in solution and in the solid state.

"This should pave the way for the availability of many stable singlet and triplet diradicals in the near future," says Bertrand. "Our new diradical can be handled under standard laboratory conditions, which is very beneficial. The next challenge will be to prepare the materials by replication of the diradicals. We can hope to get materials that would have the mechanical properties, the transparence, and the low density required for a new generation of magnets, magneto-optical and electrical devices."


Story Source:

The above story is based on materials provided by University Of California - Riverside. Note: Materials may be edited for content and length.


Cite This Page:

University Of California - Riverside. "Creation Of Tiny Magnets May Lead To Big Changes." ScienceDaily. ScienceDaily, 12 March 2002. <www.sciencedaily.com/releases/2002/03/020311075940.htm>.
University Of California - Riverside. (2002, March 12). Creation Of Tiny Magnets May Lead To Big Changes. ScienceDaily. Retrieved March 27, 2015 from www.sciencedaily.com/releases/2002/03/020311075940.htm
University Of California - Riverside. "Creation Of Tiny Magnets May Lead To Big Changes." ScienceDaily. www.sciencedaily.com/releases/2002/03/020311075940.htm (accessed March 27, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Friday, March 27, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Inspectors Found Faulty Work Before NYC Blast

Inspectors Found Faulty Work Before NYC Blast

AP (Mar. 27, 2015) An hour before an apparent gas explosion sent flames soaring and debris flying at a Manhattan apartment building, injuring 19 people, utility company inspectors decided the work being done there was faulty. (March 27) Video provided by AP
Powered by NewsLook.com
Facebook Building Plane-Sized Drones For Global Internet

Facebook Building Plane-Sized Drones For Global Internet

Newsy (Mar. 27, 2015) Facebook on Thursday revealed more details about its Internet-connected drone project. The drone is bigger than a 737, but lighter than a car. Video provided by Newsy
Powered by NewsLook.com
Robot Returns from International Space Station and Sets Two Guinness World Records

Robot Returns from International Space Station and Sets Two Guinness World Records

Reuters - Light News Video Online (Mar. 27, 2015) The companion robot "Kirobo" returns to earth from the International Space Station and sets two Guinness World Records. Sharon Reich reports. Video provided by Reuters
Powered by NewsLook.com
Residents Witness Building Explosion, Collapse

Residents Witness Building Explosion, Collapse

AP (Mar. 26, 2015) Witnesses recount the sites and sounds of a massive explosion and subsequent building collapse in the heart of Manhattan&apos;s trendy East Village on Thursday. (March 26) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins