DISCLAIMER: This article is being kept online for historical purposes. Though accurate at last review, it is no longer being updated. The page may contain broken links or outdated information.
Koltsov, Denis Department of Engineering, Lancaster University, Lancaster, United Kingdom.
- Basic physics
- Data-storage applications
- Biomedical applications
- Related Primary Literature
- Additional Reading
It is interesting to imagine what would happen to a bar magnet if it were broken up into smaller and smaller pieces. Eventually one would end up with very small bar magnets, yet their properties could be vastly different from those of large-scale permanent magnets. Even if a macroscopic object made of a ferromagnetic material such as iron or cobalt may have no magnetic polarization, its nanometer-scale counterparts can be made into perfect bar magnets. The size and shape of these nanometer-scale magnets (nanomagnets) determine their strength, polarization direction, and the ways in which this polarization can be changed by external magnetic fields. The applications of such nanoscale magnets range from mass data storage to cancer treatment and medical imaging.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information