ChemInform Abstract: Processing and Characterization of Magnetic Thin Films for Longitudinal Recording Media

ABSTRACTOblique incidence magnetic thin films are considered to be the most appropriate recording media for the next generation of video tape applications. In order to study the microstructure of such thin films, a specimen preparation technique employing ultramicrotomy has been developed. Because oblique incidence thin films have a porous structure and poor adhesion to the substrate, the problem of splitting of the thin films from the substrate is severe. This problem is reduced considerably by the following exercises: 1. using an acrylic embedding resin e.g. LR White (London Resin Co.), 2. thorough degreasing with solvents, 3. using a 55° diamond knife, and 4. trimming the block with a microtome before actual sectioning. The details of this preparation technique and some results obtained with this technique are presented.

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Secondary resonance magnetic force microscopy using an external magnetic field for characterization of magnetic thin films

Applied Physics Letters ◽

10.1063/1.4930878 ◽

2015 ◽

Vol 107 (10) ◽

pp. 103110 ◽

Cited By ~ 4

Author(s):

Dongzi Liu ◽

Kangxin Mo ◽

Xidong Ding ◽

Liangbing Zhao ◽

Guocong Lin ◽

...

Keyword(s):

Magnetic Field ◽

Thin Films ◽

External Magnetic Field ◽

Magnetic Force Microscopy ◽

Magnetic Force ◽

Magnetic Thin Films ◽

Secondary Resonance ◽

Force Microscopy

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Surface magnetisation sensor for characterization of magnetic thin films and spin-valves structures

Microelectronic Engineering ◽

10.1016/s0167-9317(99)00512-2 ◽

2000 ◽

Vol 51-52 ◽

pp. 409-413 ◽

Cited By ~ 1

Author(s):

Jenica Neamtu ◽

Marius Volmer

Keyword(s):

Thin Films ◽

Magnetic Thin Films ◽

Spin Valves

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Permeameter For The Characterization Of Magnetic Thin Films Up To 15 GHz

2008 38th European Microwave Conference ◽

10.1109/eumc.2008.4751573 ◽

2008 ◽

Author(s):

Falk Hettstedt ◽

Ulrich Schurmann ◽

Reinhard Knochel ◽

Eckhard Quandt

Keyword(s):

Thin Films ◽

Magnetic Thin Films

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Development of Magneto-Optical Imaging for High-Throughput Characterization of Combinatorial Magnetic Thin Films

MRS Proceedings ◽

10.1557/proc-804-jj1.9 ◽

2003 ◽

Vol 804 ◽

Author(s):

X. R. Zhao ◽

N. Okazaki ◽

Y. Konishi ◽

K. Akahane ◽

Z. Kuang ◽

...

Keyword(s):

Thin Films ◽

High Throughput ◽

Combinatorial Library ◽

Imaging System ◽

Magnetic Circular Dichroism ◽

Magnetic Hysteresis ◽

Magnetic Thin Films ◽

Different Temperatures ◽

Combinatorial Technique

ABSTRACTA new magneto-optical (MO) imaging system for high-throughput characterization of combinatorial magnetic thin films has been developed. The instrument allows us to measure both Faraday rotation and ellipticity maps at various wavelengths (400 nm∼1000 nm), different magnetic fields (0∼2000 G), and different temperatures (12 K∼300 K) for wide variety of materials. We used the magnetic circular dichroism (MCD) modulation technique to map MO properties, relatively free from substrate effects. The superiority of this system is that magnetic hysteresis curves of numerous specimens with different compositions prepared by the combinatorial technique can be simultaneously measured at one sweep of magnetic field, providing an efficient characterization method for combinatorial magnetic materials. We also confirmed that the system possesses enough spatial resolution and sensitivity for detecting MO signals of individual pixels contained in a combinatorial library.

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