- #1
anithangaraj
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- 0
What is the usage of the squareness in the thin film magnetic property studies?
Squareness of the magnetic properties
- Context: Graduate
- Thread starter anithangaraj
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- Magnetic Properties
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SUMMARY
The discussion centers on the concept of "squareness" in thin film magnetic property studies, specifically regarding the unit of measurement known as Ohms/square. This unit is not a formal measurement but serves as a reminder of the dimensional relationships involved in calculating resistance. The relationship between resistance, length, and width is highlighted, emphasizing that the squareness notation is crucial for accurate measurements in material properties.
PREREQUISITES- Understanding of thin film magnetic properties
- Familiarity with electrical resistance concepts
- Knowledge of dimensional analysis in physics
- Basic grasp of geometric factors in material science
- Research the concept of sheet resistance in materials science
- Study dimensional analysis techniques in physics
- Explore the relationship between resistance, length, and width in electrical engineering
- Learn about the applications of thin films in magnetic property studies
Material scientists, electrical engineers, and researchers focused on thin film technology and magnetic properties will benefit from this discussion.
- #2
f95toli
Science Advisor
- 3,509
- 1,072
I am not sure what you are referring to...But I'll guess
Are you asking why certain properties are stated as "per square"? If so it just because it is the way the dimensions work out. "sq" is not a "proper" unit, it is just there as a reminder .
The easiest example would be sheet resistance which has the unit of Ohms/square (if you work out the dimensions you'll see that is "should" actually only be ohms).
Now, if you want to calculate the resistance (in ohms) between two points you have to multiply by the length and divide by the width; this ratio is dimensionless but it still needs to be there to get the right answer.
Hence, the answer to your question is that it is just there to remind you that it is a material parameter, and that it needs to be multipled by a geometric factor to give you something you can actually measure.
Are you asking why certain properties are stated as "per square"? If so it just because it is the way the dimensions work out. "sq" is not a "proper" unit, it is just there as a reminder .
The easiest example would be sheet resistance which has the unit of Ohms/square (if you work out the dimensions you'll see that is "should" actually only be ohms).
Now, if you want to calculate the resistance (in ohms) between two points you have to multiply by the length and divide by the width; this ratio is dimensionless but it still needs to be there to get the right answer.
Hence, the answer to your question is that it is just there to remind you that it is a material parameter, and that it needs to be multipled by a geometric factor to give you something you can actually measure.
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