Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Superparamagnetic Lead Nanopowder - A New Milestone: Indian researchers have explored the superparamagntism of lead nanopowder

Abstract:
Indian researchers (Theivasanthi and Alagar) have discovered the superparamagntism of lead nanopowder. The group, based at Centre for Research and Post Graduate Studies in Physics, Ayya Nadar Janaki Ammal College has crossed an another milestone in its research activities by exploring the new behavior of this metal nanopowder. It comments: "It is really amazing to us; to our best knowledge, this is the first demonstration of superparamagnetic nature of lead nanopowder (Pb); so far, lead metal has been known as a diamagnetic; this new exploration of new behavior has moved us one step forward and upward in our research".

Superparamagnetic Lead Nanopowder - A New Milestone: Indian researchers have explored the superparamagntism of lead nanopowder

Sivakasi, India | Posted on October 1st, 2013

In their earlier reports, the researchers have explained the synthesis procedures of this metal powder [Theivasanthi et al, hgoo.gl/bXphv ] and explore its semi-conducting properties [Theivasanthi et al, goo.gl/IyWXzq ]. In their current report, the superparamagnetic properties have been explained [Theivasanthi et al, goo.gl/dyg2H1].

If both semiconducting and superparamagnetism behaviours available in same material, it will provide a single platform for computation and data storage. It will integrate computer memory with data processing lead to new kind of computation, in future. Findings of this study suggest that the synthesized material is an efficient superparamagnetic material. It can be utilized for various applications like magnetic, Storage Devices, Medical & Biomedical and other applications like Research tools in materials physics, geology, biology, medicine etc. Hysteresis Curve image of spherical Pb Nanoparticles is in Fig.1. This work throws some light on and helps further research on nano-sized lead powder.

Generally nano-materials have behaviors different from their bulk material. Size and shape control many of the physical properties including magnetic properties of nanomaterials. The present research has been done, based on this fact and superparamagnetic properties of Pb nanopowder have been explored. Vibrating Sample Magnetometer (VSM) study of the material indicates sigmoid or S-like shape hysteresis, without any loop / squareness (SQR i.e. Mr/Ms of the sample is 0.03517). It does not exhibit coercivity (Hc) saturated magnetization (Ms) and remanent magnetization (Mr). The net magnetization in the absence of an external field is zero. These characters confirm superparamagnetic properties.

"Our data clearly indicates the superparamagnetic nature of Pb nanopowder," the researchers comment, adding: "Further research related to application oriented of this material like magnetic and solar cells is going on." Interested collaborators / researchers, please contact us, for collaborative works.

####

For more information, please click here

Contacts:
T.Theivasanthi
Phone: 9344643384

Copyright © Ayya Nadar Janaki Ammal College

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

New Biosensor Produced in Iran to Detect Effective Drugs in Cancer Treatment July 4th, 2015

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Discoveries

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

New Biosensor Produced in Iran to Detect Effective Drugs in Cancer Treatment July 4th, 2015

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Groundbreaking research to help control liquids at micro and nano scales July 3rd, 2015

Materials/Metamaterials

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

New technology using silver may hold key to electronics advances July 2nd, 2015

NIST Group Maps Distribution of Carbon Nanotubes in Composite Materials July 2nd, 2015

Proposed TSCA Nanomaterial Rule ‘Premature’, Says Former EPA Toxicologist July 1st, 2015

Announcements

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

New Biosensor Produced in Iran to Detect Effective Drugs in Cancer Treatment July 4th, 2015

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Energy

New technology using silver may hold key to electronics advances July 2nd, 2015

Visible Light-Sensitive Photocatalysts Used for Purification of Contaminated Water in Iran June 30th, 2015

June 29th, 2015

Making new materials with micro-explosions: ANU media release: Scientists have made exotic new materials by creating laser-induced micro-explosions in silicon, the common computer chip material June 29th, 2015

Solar/Photovoltaic

Making new materials with micro-explosions: ANU media release: Scientists have made exotic new materials by creating laser-induced micro-explosions in silicon, the common computer chip material June 29th, 2015

Spain nanotechnology featured at NANO KOREA 2015 June 26th, 2015

Stanford researchers stretch a thin crystal to get better solar cells June 25th, 2015

Toward tiny, solar-powered sensors: New ultralow-power circuit improves efficiency of energy harvesting to more than 80 percent June 23rd, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project