Fabrication and magnetic force microscopy (MFM) observation of nano scale ferromagnetic nanodot arrays

2005 ◽  
Vol 11 (5) ◽  
pp. 415-419 ◽  
Author(s):  
Joonyeon Chang ◽  
Wanghyun Park ◽  
A. A. Fraerman ◽  
V. L. Mironov
2004 ◽  
Vol 96 (11) ◽  
pp. 6690-6693 ◽  
Author(s):  
J. Bai ◽  
H. Takahoshi ◽  
H. Ito ◽  
H. Saito ◽  
S. Ishio

2002 ◽  
Vol 91 (10) ◽  
pp. 7311 ◽  
Author(s):  
L. Gao ◽  
S. H. Liou ◽  
M. Zheng ◽  
R. Skomski ◽  
M. L. Yan ◽  
...  

Author(s):  
Ahmadreza Eshghinejad ◽  
Wen-I Liang ◽  
Qian Nataly Chen ◽  
Feiyue Ma ◽  
Ying-Hao Chu ◽  
...  

In this study magnetic force microscopy (MFM), piezoresponse force microscopy (PFM), and the newly developed piezomagnetic force microscopy (PmFM) techniques are used to probe the ferroelectric and ferromagnetic properties of BiFeO3-LiMn2O4 (BFO-LMO) heterostructures at nano-scale. The PmFM technique is also used to probe the ferromagnetic properties of CoFe2O4 (CFO) as a case study. The PFM and PmFM mappings of the BFO-LMO heterostructures clearly distinguish the BFO matrix and LMO nanopillars while the MFM mapping is ambiguous. The relatively high piezomagnetic response of BFO matrix is believed to be due to the Mn doping while the piezoelectric-like response of LMO nanopillars is due to the ionic activities and the vertical geometry of its heterostructure. Lastly, limitations of the PmFM technique are discussed.


Author(s):  
Way-Jam Chen ◽  
Lily Shiau ◽  
Ming-Ching Huang ◽  
Chia-Hsing Chao

Abstract In this study we have investigated the magnetic field associated with a current flowing in a circuit using Magnetic Force Microscopy (MFM). The technique is able to identify the magnetic field associated with a current flow and has potential for failure analysis.


Small ◽  
2020 ◽  
Vol 16 (11) ◽  
pp. 2070058
Author(s):  
Héctor Corte‐León ◽  
Volker Neu ◽  
Alessandra Manzin ◽  
Craig Barton ◽  
Yuanjun Tang ◽  
...  

1999 ◽  
Vol 577 ◽  
Author(s):  
A. Gavrin ◽  
C. Sellers ◽  
S.H. Liouw

ABSTRACTWe have used Magnetic Force Microscopy (MFM) to study the magnetic domain structures of melt-spun Nd-Fe-B ribbons. The ribbons are commercial products (Magnequench International, Inc. MQP-B and MQP-B+) with a thickness of approximately 20 microns. These materials have identical composition, Nd12.18B5.36Fe76.99Co5.46, but differ in quenching conditions. In order to study the distribution of domain sizes through the ribbon thickness, we have prepared cross-sectional samples in epoxy mounts. In order to avoid artifacts due to tip-sample interactions, we have used high coercivity CoPt coated MFM tips. Our studies show domain sizes typically ranging from 50-200 nm in diameter. This is in agreement with studies of similar materials in which domains were investigated in the plane of the ribbon. We also find that these products differ substantially in mean domain size and in the uniformity of the domain sizes as measured across the ribbon. While the B+ material shows nearly uniform domain sizes throughout the cross section, the B material shows considerably larger domains on one surface, followed by a region in which the domains are smaller than average. This structure is presumably due to the differing quench conditions. The region of coarse domains varies in thickness, disappearing in some areas, and reaching a maximum thickness of 2.75 µm in others. We also describe bulk magnetic measurements, and suggest that.


2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Sergey Yu. Grebenchuk ◽  
Razmik A. Hovhannisyan ◽  
Viacheslav V. Dremov ◽  
Andrey G. Shishkin ◽  
Vladimir I. Chichkov ◽  
...  

1995 ◽  
Vol 31 (6) ◽  
pp. 3349-3351 ◽  
Author(s):  
M.R.J. Gibbs ◽  
M.A. Al-Khafaji ◽  
W.M. Rainforth ◽  
H.A. Davies ◽  
K. Babcock ◽  
...  

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