Magnetic properties of iron nanoparticles prepared by exploding wire technique

Details Magnetic properties of iron nanoparticles prepared by exploding wire technique Magnetic properties of iron nanoparticles prepared by exploding wire technique

2006-09-15

arxiv.org/abs/cond-mat/0609370v1

Physics

Condensed Matter

Materials Science

17 pages including figures,Presented at the international conference on nanoscience and nanotecnology (ICONSAT 2006), Delhi, I

Scientific paper

Nanoparticles of iron were prepared in distilled water using very thin iron wires and sheets, by the electro-exploding wire technique. Transmission electron microscopy reveals the size of the nanoparticles to be in the range 10 to 50 nm. However, particles of different sizes can be segregated by using ultrahigh centrifuge. X-ray diffraction studies confirm the presence of the cubic phase of iron. These iron nanoparticles were found to exhibit fluorescence in the visible region in contrast to the normal bulk material. The room temperature hysteresis measurements upto a field of 1.0 tesla were performed on a suspension of iron particles in the solution as well as in the powders obtained by filtration. The hysteresis loops indicate that the particles are superparamagnetic in nature. The saturation magnetizations was ~ 60 emu / gm. As these iron particles are very sensitive to oxygen a coating of non-magnetic iron oxide tends to form around the particles giving it a core - shell structure. The core particle size is estimated theoretically from the magnetization measurements. Suspensions of iron nanoparticles in water have been proposed to be used as an effective decontaminant for ground water.

Affiliated with

Also associated with

No associations

Rating

Magnetic properties of iron nanoparticles prepared by exploding wire technique does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnetic properties of iron nanoparticles prepared by exploding wire technique, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic properties of iron nanoparticles prepared by exploding wire technique will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-410500