scholarly journals Распределение намагниченности в частицах с конфигурационной анизотропией, полученных методом микросферной литографии

2019 ◽  
Vol 89 (11) ◽  
pp. 1742
Author(s):  
Д.А. Бизяев ◽  
А.А. Бухараев ◽  
Н.И. Нургазизов ◽  
А.П. Чукланов ◽  
В.М. Масалов
Keyword(s):  
Computer Simulation ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Scanning Probe ◽  
Magnetization Distribution ◽  
Scanning Probe Lithography ◽  
Force Microscopy ◽  
Lithography Process ◽  
Atomic Force ◽  
Lithography Technique

The arrays of permalloy micron-sized particles with configurational anisotropy of shape was made by microsphere lithography technique. The properties of the particles were studied by atomic-force microscopy and magnetic-force microscopy. The magnetization distribution in particles was studied depending on the size of microspheres used in lithography process. The computer simulation of magnetic-force images of the particles was carried out. The quantitative and qualitative comparisons of shapes, sizes and reproducibility of particles fabricated by microsphere lithography and scanning probe lithography was performed.

scholarly journals Microscopia de varredura por sonda (SPM) aplicada a aços inoxidáveis dúplex

2007 ◽  
Vol 60 (1) ◽  
pp. 183-187
Author(s):  
Fabricio Simão dos Santos ◽  
Simoni Maria Gheno ◽  
Sebastião Elias Kuri
Keyword(s):  
Atomic Force Microscopy ◽  
Scanning Probe Microscopy ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Scanning Probe ◽  
Probe Microscopy ◽  
Force Microscopy ◽  
Atomic Force

Nesse trabalho, a microscopia de varredura por sonda (Scanning Probe Microscopy - SPM), nos modos contato (Atomic Force Microscopy - AFM) e de força magnética (Magnetic Force Microscopy - MFM), foi utilizada para analisar a microestrutura de um aço inoxidável dúplex 2205 solubilizado e envelhecido. Foi feita uma análise por AFM da superfície do aço solubilizado após crescimento de filme passivo. Por AFM, obteve-se indicação de crescimento de filme sobre a microestrutura do aço solubilizado, enquanto por MFM a distribuição de fases pôde ser observada sem a necessidade de ataque da superfície.

scholarly journals Dip-Pen Nanolithography Method for Fabrication of Biofunctionalized Magnetic Nanodiscs Applied in Medicine

2018 ◽  
Vol 52 (5) ◽  
pp. 528
Author(s):  
T.E. Smolyarova ◽  
A.V. Lukyanenko ◽  
A.S. Tarasov ◽  
A.E. Sokolov
Keyword(s):  
Magnetic Properties ◽  
Cancer Cell ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Theoretical Calculations ◽  
Experimental Results ◽  
Magnetization Distribution ◽  
Force Microscopy ◽  
Atomic Force ◽  
Dip Pen Nanolithography

AbstractThe magnetic properties of ferromagnetic nanodiscs coated with gold, manufactured using the Dip-Pen Nanolithography method, and were studied by atomic-force and magnetic force microscopy methods. The magnetic discs (dots) are represented as nanoagents (nanorobots) applied in medicine for the cancer cell destruction. The motivation of this work stem from the necessity of the understanding of the magnetization distribution in ferromagnetic discs that is crucial for their application in biomedicine. We have performed the theoretical calculations in order to compare the theoretical image contrast to experimental results. Herein, we report about the fabrication and analysis of biocompatible ferromagnetic nanodiscs with the homogenous magnetized state.

scholarly journals Visualization of magnetostructural transition in Heusler alloys by Magnetic Force Microscopy

2018 ◽  
Vol 185 ◽  
pp. 05004
Author(s):  
Pavel Geydt ◽  
Igor D. Rodionov ◽  
Alexander B. Granovsky ◽  
Ekaterina Soboleva ◽  
Egor Fadeev ◽  
...  
Keyword(s):  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Domain Walls ◽  
Heusler Alloys ◽  
Scanning Probe ◽  
Magnetic Domains ◽  
Magnetic Signal ◽  
Force Microscopy ◽  
Magnetostructural Transition ◽  
Probe Microscope

Magnetostructural transition was observed in Ni-Mn-In-Cr Heusler alloy with help of Magnetic Force Microscopy (MFM). The crystal structure of a sample and characteristic temperatures of the phase transition were controlled by roentgenostructural phase analysis and magnetometry, respectively. It appeared prominently important to prepare the surface of the sample until the nanometer level of surface roughness. Magnetic study performed with scanning probe microscope revealed existence of magnetic domains, which were spread across the surface evenly. Further studies revealed that intensity of magnetic signal decreases as fading out of the contrast of the MFM images. It was found that location of domains shifted after the heating/cooling cycle above Curie temperature for the studied alloy. Location of new domain walls appeared correlating with surface scrapings and defects, whilst it became independent from those after heating until just 70°C. The mechanism behind the observed transition is proposed.

Magnetic Films of Cobalt/Aluminum Electrodeposited from the Room Temperature Molten Salts AlCl3-BPC-CoCl2

2004 ◽  
Vol 59 (5) ◽  
pp. 519-524 ◽  
Author(s):  
Chao-Chen Yang ◽  
Te-Ho Wu ◽  
Min-Fong Shu
Keyword(s):  
Thin Films ◽  
Magnetic Force Microscopy ◽  
Room Temperature ◽  
Magnetic Force ◽  
Current Method ◽  
Magnetic Films ◽  
Deposition Potential ◽  
Force Microscopy ◽  
Atomic Force ◽  
Increasing Temperature

Abstract The electric conductivities of molten mixtures of aluminum chloride-butylpyridinium chloridecobalt chloride (AlCl3-BPC-CoCl2) were measured using a computerized direct-current method. The conductivities of all the melts increased with increasing temperature. The electrodeposition of Co/Al films from the AlCl3-BPC melt containing a small amount of CoCl2 has been studied by cyclic voltammetry. Compact and smooth Co/Al thin films could be obtained at a deposition potential of −0.4 V. The surface morphology and the composition of the electrodeposited thin films were studied using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The magnetic properties of the deposited thin films have been investigated via magnetic force microscopy (MFM) and vibrating sample magnetometry (VSM). Higher magnetization and smooth domains of Co/Al layers could be obtained at the deposition potentials of −0.1 V and −0.4 V, respectively.

Atomic Force Microscopy Probe with Integrated Loop and Shielded Leads for Micromagnetic Sensing

2005 ◽  
Vol 872 ◽  
Author(s):  
D.P. Lagally ◽  
A. Karbassi ◽  
Y. Wang ◽  
C.A. Paulson ◽  
D. W. van der Weide
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
High Spatial Resolution ◽  
Magnetic Moments ◽  
Chemical Species ◽  
Magnetic Resonance Force Microscopy ◽  
Force Microscopy ◽  
Atomic Force ◽  
Magnetic Resonance Imaging Mri

The effort to produce an instrument that can achieve high spatial resolution, nondestructive, surface and sub-surface imaging for a variety of materials comes with many challenges. One approach, magnetic resonance-force microscopy (MRFM), lies at the nexus of two sensitive technologies: magnetic force microscopy (MFM) and magnetic resonance imaging (MRI). MFM uses a magnetic tip in a standard atomic force microscope (AFM) to obtain magnetic information about a surface. A difference in the magnetic moments of surface atoms in different regions on the surface varies the cantilever resonance. MRI, on the other hand, uses the spin states of magnetically biased atoms to differentiate between chemical species.

A study of nanostructure magnetosolid Nd–Ho–Fe–Co–B materials via atomic force microscopy and magnetic force microscopy

2016 ◽  
Vol 58 (9) ◽  
pp. 1862-1869 ◽  
Author(s):  
N. V. Andreeva ◽  
A. V. Filimonov ◽  
A. I. Rudskoi ◽  
G. S. Burkhanov ◽  
I. S. Tereshina ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Force Microscopy ◽  
Atomic Force

Features of Surface Morphology and Magnetic Properties of Sm0.5R0.5Fe2 (R = Tb, Gd) Compounds

2020 ◽  
Vol 312 ◽  
pp. 261-269
Author(s):  
Galina Aleksandrovna Politova ◽  
Tatiana P. Kaminskaya ◽  
Alexey Karpenkov ◽  
Nikolay Yu. Pankratov ◽  
Maksim Ganin ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Force Microscopy ◽  
Room Temperature ◽  
Magnetic Force ◽  
Magnetic Domain ◽  
Surface Topology ◽  
Partial Replacement ◽  
Force Microscopy ◽  
Atomic Force ◽  
Comprehensive Study

A comprehensive study of the structure and phase composition, magnetostrictive and magnetic properties of the (Sm0.5R0.5)Fe2 (R = Gd, Tb) compounds was performed. The effect of partial replacement of samarium by gadolinium and terbium on the microstructure of the surface, the temperature of phase transitions, the magnitude of magnetostrictive deformations and magnetization was studied. Using atomic force and magnetic force microscopy, the surface topology at the micro and nanoscale was established, and information on the magnetic domain structure at room temperature was obtained.

INVESTIGATION OF SURFACE MAGNETIC STRUCTURE IN STEELS OF A SYSTEM Fe–Mn–Al–C BY ATOMIC FORCE MICROSCOPY

1999 ◽  
Vol 06 (01) ◽  
pp. 115-125 ◽  
Author(s):  
G. L. KLIMCHITSKAYA ◽  
R. PRIOLI ◽  
S. I. ZANETTE ◽  
A. O. CARIDE ◽  
O. ACSELRAD ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Structure ◽  
Isothermal Aging ◽  
Magnetic Force Microscopy ◽  
Magnetic Field Dependence ◽  
Magnetic Force ◽  
Force Microscopy ◽  
Atomic Force ◽  
Good Imaging ◽  
The Magnetic Field

Magnetic force microscopy (MFM) is used to investigate the surface magnetic structure of steels Fe–28Mn–8.5Al–1C–1.4Si under the different regimes of isothermal aging. A theoretical model for the MFM imaging of such structures is developed. Calculation of van der Waals forces is performed in order to interpret the topography images. The lateral resolution in terms of the magnetic field dependence on the surface coordinates is investigated. Finally, conditions that should be fulfilled for a good imaging of the samples are formulated.

Sign in / Sign up

Export Citation Format

Share Document