Thank you for your video, it was very helpful. Can you give me recommended science articles and/ or books that you have read to make this youtube video, please. It is for my own private research.
I'm very glad it was helpful for you! Lake Shore's marketing department worked with the application scientist Jeff Lindemuth to create this video. As a compliment to this video we have developed the Hall Effect Measurement Handbook which really digs deep into measuring the Hall effect. If you found this video to be interesting and helpful, you definitely should download our Hall Effect Measurement Handbook! tinyurl.com/y87gzys2
Thank you Sheperd! It's slowly receiving more views every day. For only being live less than a year, it's being viewed quite often. The good news is the information will always be helpful and the video will always be here for those that need to refer to it!
Why are differences in these measurements taken into the resistance calculation? When I do this I get totally different answers compared by plugging in voltages/currents one by one and then averaging.
Good question Minh, and this information may need added to the video for further clarity. "f" refers to the symmetry of the sample. After speaking with our Hall expert, his explanation is as follows: "f" is determined by using Van der Pauw's equation for calculating "f". If f=1 the sample is symmetric; values less than 1 mean the sample is less symmetric. Please see the linked image: imgur.com/bGdF8Ik Hopefully that helps. If not, let us know and we'll provide further detail.
Thank you for your video. Can I ask a question about calculate mobility and current density ? I measure hall effect about (Rxx or Rxy) - B curve . Someone will use the slope to calculate them . But ,I don't know how to prove the formula.
If the polarity of the voltmeter is backwards, then a positive current will make a negative voltage, and the resistance will be negative. The polarity of the voltmeter should always be set correctly so that resistance are calculated as positive.
![[LIVE] : ONE ลุมพินี 82 วันนี้!! คู่เอก | ยอดไอคิว vs อับดัลลาห์](http://i.ytimg.com/vi/hSsyTl_9bqs/mqdefault.jpg)
Thank you for your video, it was very helpful. Can you give me recommended science articles and/ or books that you have read to make this youtube video, please. It is for my own private research.
I'm very glad it was helpful for you! Lake Shore's marketing department worked with the application scientist Jeff Lindemuth to create this video. As a compliment to this video we have developed the Hall Effect Measurement Handbook which really digs deep into measuring the Hall effect. If you found this video to be interesting and helpful, you definitely should download our Hall Effect Measurement Handbook!
tinyurl.com/y87gzys2
@@LakeshoreCryo I have downloaded it now. Thank you very much.
In the equation for Hall Coefficient you need the thickness of the sample as well.
thank you for this video the animation helps a lot to understand this complicated method of vander paw. make more video....
can't imagine such a helpful video received so few views
Thank you Sheperd! It's slowly receiving more views every day. For only being live less than a year, it's being viewed quite often. The good news is the information will always be helpful and the video will always be here for those that need to refer to it!
thnx for this video u explained this topic within 10min And our professor cant do same in 2hr lecture
Haha....great comment! Our goal is to make the complicated more easily understood. We're glad the video was helpful!
Very informative video, I also downloaded the book and I'm using it as a guide for my experiments!
That's excellent! Very happy to hear the documents we've created are being used in the field.
incredible video. Just dont forget to multiply by thickness for hall coefficient
good video to learn
Thank you sir, For very much informative video
Thanks a lot for making this video. ❤️✌️
Thank you so much sir. I really appreciate your work.
Thanks Yash! Glad you're enjoying the video.
Vary clear and concise ....thanks....
Why are differences in these measurements taken into the resistance calculation? When I do this I get totally different answers compared by plugging in voltages/currents one by one and then averaging.
You use the absolute values of current and voltage, or do you need to pay attention to the signal of both measures?
Thank you very much for the video. What does "f" in Van Der Pauw's Equation for Resistivity refer to?
Good question Minh, and this information may need added to the video for further clarity. "f" refers to the symmetry of the sample. After speaking with our Hall expert, his explanation is as follows: "f" is determined by using Van der Pauw's equation for calculating "f". If f=1 the sample is symmetric; values less than 1 mean the sample is less symmetric. Please see the linked image: imgur.com/bGdF8Ik
Hopefully that helps. If not, let us know and we'll provide further detail.
@@LakeshoreCryo Thank you very much for your answer. So does that mean f = 1 for Van Der Pauw’s geometric configuration (square) ?
@@MinhTruong1093 Yes for a perfect square with contacts all the same size, shape and placement, f would = 1.
Thank you very much for your answer!
Thank you for your video. Can I ask a question about calculate mobility and current density ? I measure hall effect about (Rxx or Rxy) - B curve . Someone will use the slope to calculate them . But ,I don't know how to prove the formula.
What must be the polarity for the voltmeter?
If the polarity of the voltmeter is backwards, then a positive current will make a negative voltage, and the resistance will be negative. The polarity of the voltmeter should always be set correctly so that resistance are calculated as positive.
Thank u sir
What is the ft meaning in van der pauws resistivity equation
f is one and t is thickness?
In the equation, f is the solution to van der Pauw’s equation (geometry factor related to the sample) and t is the thickness of the sample.
Kimisanggoong brought me here!
u didnt tell how to find nature of career qualitatively...without knowing sign of RH