- #1
anithangaraj
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What is the usage of the squareness in the thin film magnetic property studies?
Squareness of the magnetic properties
- Thread starter anithangaraj
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AI Thread Summary
The discussion clarifies the concept of "squareness" in thin film magnetic property studies, particularly in relation to units like Ohms/square. It explains that "sq" serves as a reminder of the dimensional relationships in calculations, rather than being a proper unit itself. The example of sheet resistance illustrates how this dimensionless ratio is necessary for accurate measurements. Ultimately, the squareness indicates a material parameter that must be adjusted by geometric factors to yield measurable values. Understanding this concept is crucial for interpreting thin film magnetic properties effectively.
- #2
f95toli
Science Advisor
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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.
Thank you for reading my post. I can understand why a change in magnetic flux through a conducting surface would induce an emf, but how does this work when inducing an emf through a coil? How does the flux through the empty space between the wires have an effect on the electrons in the wire itself?
In the image below is a coil with a magnetic field going through the space between the wires but not necessarily through the wires themselves.
Thank you.
Hello. My question is:
When a capacitor in LC circuit is out of charge (T/4) does that mean that all electrons left the capacitor or that there is the same quantity of electrons on both plates?
I was using the Smith chart to determine the input impedance of a transmission line that has a reflection from the load. One can do this if one knows the characteristic impedance Zo, the degree of mismatch of the load ZL and the length of the transmission line in wavelengths. However, my question is: Consider the input impedance of a wave which appears back at the source after reflection from the load and has traveled for some fraction of a wavelength. The impedance of this wave as it...
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