Ziming Wu

4 Questions 3 Answers 0 Followers

Questions related from Ziming Wu

How to Resolve the Issue of Abnormal Sample Heating During Measurements at Temperatures as Low as 253mK?

After using the Heliox-JT sample probe produced by Oxford Instruments to cool down to the lowest temperature (253mK), the thermometer reading on the sample holder was 261mK. When connecting the...

24 August 2024 3,079 2 View

Where can I buy a reliable tunnel diode(TD)?

Hi, everyone, I want to develop a tehcnique called TDO (Tunnel Diode Osillation) accorrding to this paper(Tunnel diode oscillator for 0.001 ppm measurements at low temperatures ), however, I can't...

20 April 2023 3,790 2 View

How to use a centrifuge to effectively remove flux during crystal growth so that as little flux remains on the crystal surface as possible?

When I was growing a single crystal recently, I found that the flux Sn residue on the surface of the single crystal was very serious. I repeated centrifugation, but it still didn't seem to work. I...

22 March 2022 3,044 4 View

How to choose a frequency when measuring of Seebeck coefficient based on an AC tech?

Recently, I read an article on Seebeck coefficience(Determination of the thermopower of microscale samples with ... ). In this article, the authors used an AC tech to measure the Seebeck of film...

25 November 2021 4,341 1 View