FePt/Co core/shell nanoparticle-based anisotropic nanocomposites and their exchange spring behavior

Nanoscale ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 4061-4067 ◽  
Author(s):  
Deyao Li ◽  
Hui Wang ◽  
Zhenhui Ma ◽  
Xin Liu ◽  
Ying Dong ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Easy Axis ◽  
Core Shell ◽  
Exchange Spring ◽  
Axis Alignment ◽  
Strong Exchange

The transition from strong exchange coupling to exchange spring triggered by the easy-axis alignment.

A Study of Exchange-Coupling Effect on Nd2Fe14B / α-Fe Forming Core/Shell Shape

2007 ◽  
Vol 119 ◽  
pp. 147-150 ◽  
Author(s):  
Chang Woo Kim ◽  
Young Hwan Kim ◽  
Don Keun Lee ◽  
In Chul Jeong ◽  
Hae Woong Kwon ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Ball Mill ◽  
Coupling Effect ◽  
Chemical Reduction ◽  
High Energy ◽  
Shell Shape ◽  
Core Shell ◽  
High Energy Ball Mill ◽  
Energy Ball ◽  
Mill Process

We report the core/shell type as the interesting one of the various techniques to prepare exchange-coupled permanent magnet. In this study, the exchange-coupled Nd2Fe14B/α-Fe was prepared by high energy ball mill process and chemical reduction. Nd15Fe77B8 powder prepared by high energy ball mill process was coated with α-Fe nanoparticle by chemical reduction. α-Fe nanoparticle on the ball milled Nd15Fe77B8 was synthesized by chemical reduction with borohydride as a reducing agent in aqueous solution. After annealing, Nd2Fe14B/α-Fe forming core/shell shape has exchange-coupling effect and was identified by using XRD, FE-SEM, VSM, TMA and EDX.

Exchange-Coupling Interaction in Zero- and One-Dimensional Sm2Co17/FeCo Core–Shell Nanomagnets

2019 ◽  
Vol 11 (29) ◽  
pp. 26222-26227 ◽  
Author(s):  
Jimin Lee ◽  
Jiwon Kim ◽  
Danbi Kim ◽  
Gyutae Lee ◽  
Yeong-Been Oh ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Core Shell ◽  
Coupling Interaction ◽  
One Dimensional ◽  
Exchange Coupling Interaction

A Study of Exchange-Coupling Effect on Nd2Fe14B / α-Fe Forming Core/Shell Shape

2007 ◽  
pp. 147-150
Author(s):  
Chang Woo Kim ◽  
Young Hwan Kim ◽  
Don Keun Lee ◽  
In Chul Jeong ◽  
Hae Woong Kwon ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Coupling Effect ◽  
Shell Shape ◽  
Core Shell

ENHANCEMENT OF ENERGY PRODUCT WITH INSERTION OF Ti BETWEEN EXCHANGE COUPLED Sm–Co AND Fe LAYERS

2011 ◽  
Vol 25 (22) ◽  
pp. 2957-2963 ◽  
Author(s):  
FURRUKH SHAHZAD ◽  
SAADAT ANWAR SIDDIQI ◽  
SHI-SHEN YAN ◽  
M. SABIEH ANWAR ◽  
S. M. RAMAY
Keyword(s):  
Elevated Temperature ◽  
Exchange Coupling ◽  
Single Phase ◽  
Rf Magnetron Sputtering ◽  
Thin Layers ◽  
Interlayer Thickness ◽  
X Ray Diffraction ◽  
X Ray ◽  
Energy Product ◽  
Strong Exchange

Bilayers of Sm – Co / Fe have been fabricated on 70 nm Cr buffered Si (100) substrate at an elevated temperature of 650°C by the help of DC and RF magnetron sputtering. Very thin layers (0–0.7 nm) of Ti were introduced at the interface of the Sm – Co and Fe phases. The samples were analyzed by X-ray diffraction (XRD) and alternating gradient magnetometer (AGM). All the samples showed strong exchange coupling and single phase behavior. The rise and fall in magnetization and energy product were observed with increasing Ti interlayer thickness. Energy product (BH) max value was found increased by 44% for 0.2 nm Ti interlayer as compared to the sample without Ti layer at interface.

scholarly journals Strong Exchange Coupling in a Trimetallic Radical-Bridged Cobalt(II)-Hexaazatrinaphthylene Complex

2016 ◽  
Vol 55 (18) ◽  
pp. 5521-5525 ◽  
Author(s):  
Jani O. Moilanen ◽  
Nicholas F. Chilton ◽  
Benjamin M. Day ◽  
Thomas Pugh ◽  
Richard A. Layfield
Keyword(s):  
Exchange Coupling ◽  
Strong Exchange

Patterning effect on easy axis alignment in permalloy thin film

1984 ◽  
Vol 20 (3) ◽  
pp. 485-488 ◽  
Author(s):  
Y. Shiroishi ◽  
K. Shiiki ◽  
I. Yuitoo ◽  
H. Tanabe ◽  
H. Fujiwara ◽  
...  
Keyword(s):  
Thin Film ◽  
Easy Axis ◽  
Axis Alignment

scholarly journals Strong exchange coupling between the lanthanide ions and the phthalocyaninato ligand radical in bis(phthalocyaninato)lanthanide sandwich compounds

1992 ◽  
Vol 198-200 ◽  
pp. 795-803 ◽  
Author(s):  
Kathleen L. Trojan ◽  
Jonathan L. Kendall ◽  
Keith D. Kepler ◽  
William E. Hatfield
Keyword(s):  
Exchange Coupling ◽  
Lanthanide Ions ◽  
Sandwich Compounds ◽  
Strong Exchange

Peroxide (O22−) as a bridging ligand for copper(II): strong exchange coupling in complexes derived from copper(I) and dioxygen

1991 ◽  
Vol 182 (1) ◽  
pp. 1-3 ◽  
Author(s):  
Kenneth D. Karlin ◽  
Zoltán Tyeklár ◽  
Amjad Farooq ◽  
Richard R. Jacobson ◽  
Ekkehard Sinn ◽  
...  
Keyword(s):  
Exchange Coupling ◽  
Bridging Ligand ◽  
Strong Exchange
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