Magnetic properties of the surface layer and its magnetic interaction with the interior of Nd-Fe-B sintered magnets

2015 ◽  
Vol 117 (17) ◽  
pp. 173909 ◽  
Author(s):  
Kurima Kobayashi ◽  
Michi-hide Nakamura ◽  
Kimiko Urushibata
2018 ◽  
Vol 749 ◽  
pp. 580-585 ◽  
Author(s):  
Jiaying Jin ◽  
Zheng Wang ◽  
Guohua Bai ◽  
Baixing Peng ◽  
Yongsheng Liu ◽  
...  

Author(s):  
Sajjad Ur Rehman ◽  
Qingfang Huang ◽  
Rizwan Ur Rehman Sagar ◽  
Qingzheng Jiang ◽  
Munan Yang ◽  
...  

2015 ◽  
Vol 62 (7) ◽  
pp. 349-354 ◽  
Author(s):  
Gaku OBARA ◽  
Takuya NISHIMURA ◽  
Hirotsugu HAMADA

JETP Letters ◽  
2014 ◽  
Vol 99 (11) ◽  
pp. 646-649 ◽  
Author(s):  
A. L. Klavsyuk ◽  
S. V. Kolesnikov ◽  
A. M. Saletsky

2021 ◽  
Vol 410 ◽  
pp. 714-719
Author(s):  
Denis Vinnik ◽  
Santhoshkumar Mahadevan ◽  
Puneet Sharma

Magnetic properties of Co, Ni and Zn substituted barium hexaferrite (BaM) samples prepared by solid state ceramic method were studied. Saturation magnetisation were found higher for Zn-substituted BaM, whereas, coercivity is higher for Co2+ and Ni2+ ion substituted samples. Anisotropy field for all substituted samples was calculated by the law of approaching saturation. Remanence, squareness and thermomagnetic plot suggest Zn2+ ions restricts the magnetic interaction of various sites in BaM.


2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Chen Guobin ◽  
Yang Hui ◽  
Zhang Xiaoming ◽  
Liu Jun ◽  
Tang Jun

We mainly focused on the magnetocapacitance effect of Fe3O4-PDMS nanocomposites. We also proposed the preparation method and measured microstructures, magnetic properties, and magnetocapacitance value of the nanocomposites. The magnetocapacitance measurement results show that the nanocomposites have magnetocapacitance property, the magnetocapacitance with magnetic field depends on the magnetic property, and the value at the same magnetic field is increasing with the volume fraction of Fe3O4nanoparticles. The magnetocapacitance model is proposed to explain this phenomenon by analyzing the magnetic interaction between particles and the viscoelasticity of PDMS. We also calculated the theoretical capacitance value of all samples using the magnetization of nanoparticles and mechanical parameters of PDMS. From the theoretical values, it is concluded that the model we proposed can well explain the magnetocapacitance effect of Fe3O4-PDMS nanocomposites.


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