Surface effects on the magnetic behavior of antiferromagnetic particles

K. N. Trohidou; X. Zianni; J. A. Blackman

doi:10.1063/1.368392

Surface effects on the magnetic behavior of antiferromagnetic particles

Journal of Applied Physics ◽

10.1063/1.368392 ◽

1998 ◽

Vol 84 (5) ◽

pp. 2795-2800 ◽

Cited By ~ 30

Author(s):

K. N. Trohidou ◽

X. Zianni ◽

J. A. Blackman

Keyword(s):

Magnetic Behavior ◽

Surface Effects

Download Full-text

Surface effects on the magnetic behavior of nanocrystalline nickel ferrites and nickel ferrite-polymer nanocomposites

Materials Science and Engineering B ◽

10.1016/s0921-5107(04)00427-1 ◽

2004 ◽

Vol 113 (3) ◽

pp. 228-235 ◽

Cited By ~ 73

Author(s):

H NATHANI ◽

R MISRA

Keyword(s):

Polymer Nanocomposites ◽

Nickel Ferrite ◽

Magnetic Behavior ◽

Surface Effects ◽

Nanocrystalline Nickel

Download Full-text

Influence of Surface Effects on Magnetic Behavior of Hematite Nanoparticles Embedded in Porous Silica Matrix

The Journal of Physical Chemistry C ◽

10.1021/jp9007653 ◽

2009 ◽

Vol 113 (30) ◽

pp. 13045-13050 ◽

Cited By ~ 27

Author(s):

Vladimir Zelenak ◽

Adriana Zelenakova ◽

Jozef Kovac ◽

Ulla Vainio ◽

Nataliya Murafa

Keyword(s):

Porous Silica ◽

Magnetic Behavior ◽

Surface Effects ◽

Silica Matrix ◽

Hematite Nanoparticles

Download Full-text

Magnetic studies of layer-by-layer assembled polyvinyl alcohol/iron oxide nanofilms

Physical Chemistry Chemical Physics ◽

10.1039/c8cp05404e ◽

2018 ◽

Vol 20 (41) ◽

pp. 26696-26709 ◽

Cited By ~ 4

Author(s):

Ewa Mosiniewicz-Szablewska ◽

Antonia R. Clavijo ◽

Ana P. O. R. Castilho ◽

Leonardo G. Paterno ◽

Marcelo A. Pereira-da-Silva ◽

...

Keyword(s):

Iron Oxide ◽

Polyvinyl Alcohol ◽

Substrate Surface ◽

Magnetic Behavior ◽

Surface Effects ◽

Layer By Layer ◽

Magnetic Studies

The importance of the substrate surface effects on the magnetic behavior of layer-by-layer assembled polyvinyl alcohol/iron oxide nanofilms is evidenced.

Download Full-text

Surface effects on the magnetic behavior of nanoparticle assemblies

Physical Review B ◽

10.1103/physrevb.85.024419 ◽

2012 ◽

Vol 85 (2) ◽

Cited By ~ 15

Author(s):

G. Margaris ◽

K. Trohidou ◽

H. Kachkachi

Keyword(s):

Magnetic Behavior ◽

Surface Effects ◽

Nanoparticle Assemblies

Download Full-text

Lorentz electron microscopy of magnetic domains in rapidly solidified and annealed Pt-Co-B alloys

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100088233 ◽

1991 ◽

Vol 49 ◽

pp. 784-785

Author(s):

N. Qiu ◽

J. E. Wittig

Keyword(s):

Rapid Solidification ◽

Ion Beam ◽

Magnetic Behavior ◽

High Coercivity ◽

Magnetic Domains ◽

Beam Angle ◽

Tem Analysis ◽

Intrinsic Coercivity ◽

Hard Magnets ◽

Rapidly Solidified

PtCo hard magnets have specialized applications owing to their relatively high coercivity combined with corrosion resistance and ductility. Increased intrinsic coercivity has been recently obtained by rapid solidification processing of PtCo alloys containing boron. After rapid solidification by double anvil splat quenching and subsequent annealing for 30 minutes at 650°C, an alloy with composition Pt42Co45B13 (at.%) exhibited intrinsic coercivity up to 14kOe. This represents a significant improvement compared to the average coercivities in conventional binary PtCo alloys of 5 to 8 kOe.Rapidly solidified specimens of Pt42Co45B13 (at.%) were annealed at 650°C and 800°C for 30 minutes. The magnetic behavior was characterized by measuring the coercive force (Hc). Samples for TEM analysis were mechanically thinned to 100 μm, dimpled to about 30 nm, and ion milled to electron transparency in a Gatan Duomill at 5 kV and 1 mA gun current. The incident ion beam angle was set at 15° and the samples were liquid nitrogen cooled during milling. These samples were analyzed with a Philips CM20T TEM/STEM operated at 200 kV.

Download Full-text