Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

Particles from outer space are wreaking low-grade havoc on personal electronics February 19th, 2017

Liquid metal nano printing set to revolutionize electronics: Creating integrated circuits just atoms thick February 18th, 2017

Engineers shrink microscope to dime-sized device February 17th, 2017

Francis Alexander Named Deputy Director of Brookhaven Lab's Computational Science Initiative February 16th, 2017

Discoveries

Particles from outer space are wreaking low-grade havoc on personal electronics February 19th, 2017

Liquid metal nano printing set to revolutionize electronics: Creating integrated circuits just atoms thick February 18th, 2017

Engineers shrink microscope to dime-sized device February 17th, 2017

Research opens door to smaller, cheaper, more agile communications tech February 16th, 2017

Materials/Metamaterials

Metamaterial: Mail armor inspires physicists: KIT researchers reverse hall coefficient -- medieval mail armor inspired development of metamaterial with novel properties February 15th, 2017

Research reveals novel quantum state in strange insulating materials February 14th, 2017

Graphene foam gets big and tough: Rice University's nanotube-reinforced material can be shaped, is highly conductive February 13th, 2017

Researchers optimize the assembly of micro-/meso-/macroporous carbon for Li-S batteries February 13th, 2017

Announcements

Particles from outer space are wreaking low-grade havoc on personal electronics February 19th, 2017

Liquid metal nano printing set to revolutionize electronics: Creating integrated circuits just atoms thick February 18th, 2017

Engineers shrink microscope to dime-sized device February 17th, 2017

Francis Alexander Named Deputy Director of Brookhaven Lab's Computational Science Initiative February 16th, 2017

Energy

In-cell molecular sieve from protein crystal February 14th, 2017

NREL research pinpoints promise of polycrystalline perovskites February 8th, 2017

Metallic hydrogen, once theory, becomes reality: Harvard physicists succeed in creating 'the holy grail of high-pressure physics' January 28th, 2017

New low-cost technique converts bulk alloys to oxide nanowires January 24th, 2017

Solar/Photovoltaic

Material can turn sunlight, heat and movement into electricity -- all at once: Extracting energy from multiple sources could help power wearable technology February 9th, 2017

NREL research pinpoints promise of polycrystalline perovskites February 8th, 2017

A big nano boost for solar cells: Kyoto University and Osaka Gas effort doubles current efficiencies January 21st, 2017

Chemists Cook up New Nanomaterial and Imaging Method: Nanomaterials can store all kinds of things, including energy, drugs and other cargo January 19th, 2017

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