@inbook{89a682b2af51491992c3e836478182fa,
title = " Electron microscopy studies on magnetic L1 0 -type FePd nanoparticles ",
abstract = " The results on atomic ordering and structures of hard magnetic L1 0 FePd nanoparticles studied by modern electron microscopy techniques, including NBD, CS-corrected HRTEM, HAADF-STEM, & 3D electron tomography are discussed. The key issue throughout the study is the atomic ordering in the alloy nanoparticles, in view of excellent hard magnetic properties due to the high magnetocrystalline anisotropy energy (MAE), which is dependent on the long-range order (LRO). The kinetics of atomic ordering plays a crucial role, that is, annealing below a reduced order-disorder transformation temperature is essential in obtaining the L10 ordered phase in small nanoparticles. A novel technique to measure the degree of order in individual particles using NBD and diffraction intensity calculations was proposed, & quantitatively proved the size-dependent degradation of long-range atomic order in nanoparticles. Imaging using CS-corrected HRTEM revealed the atomic structures of the alloy nanoparticles 2-10 nm in diameter. ",
keywords = "Atomic Ordering, Cs-corrected HRTEM, Electron Tomography, FePd Nanoparticle, HAADF-STEM",
author = "Kazuhisa Sato and Konno, {Toyohiko J.} and Yoshihiko Hirotsu",
note = "Funding Information: This study was supported by the Grant-in-Aid for Scientific Research (grant Nos. 16106008 (S), 14205094 (A), 13555189 (B)), the Grant-in-Aid for Young Scientists (B) (grant Nos. 19760459, 17760531, 15760490, 13750612), & the Center of Excellence (COE) program at the Institute of Scientific and Industrial Research (ISIR), Osaka University (1997–2003) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. One of the authors (K.S.) acknowledges financial support from the Research Foundation for Materials Science, Hosokawa Powder Technology Foundation, and Kazato Research Foundation. K.S. sincerely thanks Dr. B. Bian, Dr. A. Kov{\'a}cs, Dr. H. Naganuma, Dr. H. W. Ryu, Mr. J. Kawamura (formerly at Osaka University), Mr. K. Aoyagi, and Mr. K. Yanajima (graduate students at Tohoku University) for their cooperation in completing this work; Emeritus Prof. T. Kawai and Prof. H. Tanaka of the Institute of Scientific and Industrial Research, Osaka University for supporting the SQUID measurements; Emeritus Prof. H. Mori of the Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, for HVEM observation; Dr. T. Hirayama and Dr. Z. Wang of JFCC for electron holography; and Dr. K. Inoke of FEI Co. Ltd., Mr. E. Aoyagi, and Mr. Y. Hayasaka of High-Voltage Electron Microscope Laboratory, Tohoku University, for their help using C S -corrected TEM.",
year = "2012",
doi = "10.1016/B978-0-12-394396-5.00004-X",
language = "English",
series = "Advances in Imaging and Electron Physics",
publisher = "Academic Press Inc.",
pages = "165--225",
booktitle = "Advances in Imaging and Electron Physics",
address = "United States",
}