TY - JOUR
T1 - Direct Observation of Magnetocrystalline Anisotropy Tuning Magnetization Configurations in Uniaxial Magnetic Nanomaterials
AU - Zhu, Shimeng
AU - Fu, Jiecai
AU - Li, Hongli
AU - Zhu, Liu
AU - Hu, Yang
AU - Xia, Weixing
AU - Zhang, Xixiang
AU - Peng, Yong
AU - Zhang, Junli
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by National Natural Science Foundation of China (51571104, 11604130, 51601082, 51771085, and 11274145), MOST International Cooperation Funds (2014DFA91340), the Fundamental Research Funds for the Central Universities (lzujbky-2017-176 and lzujbky-2017-177), and Open Project of Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University (LZUMMM2017003).
PY - 2018/3/20
Y1 - 2018/3/20
N2 - Discovering the effect of magnetic anisotropy on the magnetization configurations of magnetic nanomaterials is essential and significant for not only enriching the fundamental knowledge of magnetics but also facilitating the designs of desired magnetic nanostructures for diverse technological applications, such as data storage devices, spintronic devices, and magnetic nanosensors. Herein, we present a direct observation of magnetocrystalline anisotropy tuning magnetization configurations in uniaxial magnetic nanomaterials with hexagonal structure by means of three modeled samples. The magnetic configuration in polycrystalline BaFe12O19 nanoslice is a curling structure, revealing that the effect of magnetocrystalline anisotropy in uniaxial magnetic nanomaterials can be broken by forming an amorphous structure or polycrystalline structure with tiny grains. Both single crystalline BaFe12O19 nanoslice and individual particles of single-particle-chain BaFe12O19 nanowire appear in a single domain state, revealing a dominant role of magnetocrystalline anisotropy in the magnetization configuration of uniaxial magnetic nanomaterials. These observations are further verified by micromagnetic computational simulations.
AB - Discovering the effect of magnetic anisotropy on the magnetization configurations of magnetic nanomaterials is essential and significant for not only enriching the fundamental knowledge of magnetics but also facilitating the designs of desired magnetic nanostructures for diverse technological applications, such as data storage devices, spintronic devices, and magnetic nanosensors. Herein, we present a direct observation of magnetocrystalline anisotropy tuning magnetization configurations in uniaxial magnetic nanomaterials with hexagonal structure by means of three modeled samples. The magnetic configuration in polycrystalline BaFe12O19 nanoslice is a curling structure, revealing that the effect of magnetocrystalline anisotropy in uniaxial magnetic nanomaterials can be broken by forming an amorphous structure or polycrystalline structure with tiny grains. Both single crystalline BaFe12O19 nanoslice and individual particles of single-particle-chain BaFe12O19 nanowire appear in a single domain state, revealing a dominant role of magnetocrystalline anisotropy in the magnetization configuration of uniaxial magnetic nanomaterials. These observations are further verified by micromagnetic computational simulations.
UR - http://hdl.handle.net/10754/627446
UR - https://pubs.acs.org/doi/10.1021/acsnano.8b00058
UR - http://www.scopus.com/inward/record.url?scp=85045909574&partnerID=8YFLogxK
U2 - 10.1021/acsnano.8b00058
DO - 10.1021/acsnano.8b00058
M3 - Article
C2 - 29558619
SN - 1936-0851
VL - 12
SP - 3442
EP - 3448
JO - ACS Nano
JF - ACS Nano
IS - 4
ER -