Live data from Hacker News

Electron band structure in germanium, my ass (2000)

pages.cs.wisc.edu

61–70 of 88 posts

Re: Electron band structure in germanium, my ass (2000)

#61

Original publication: Kovar, L. “Electron Band Structure In Germanium, My Ass.” Annals of Improbable Research, vol. 7, no. 3, May/June 2001, p. 4, https://web.archive.org/web/20010620051228/http://www.improb...

Here's a list of classics from Improbable Research

https://improbable.com/publications/classics/

Re: Electron band structure in germanium, my ass (2000)

#62

Exactly my experience back in the days doing the mandatory "advanced experimental physics laboratory semester" where you had to do like 14 vastly different experiment of the caliber described in that post in the course of one semester on old equipment that would break during the experiment, with less than motivated PhD students or post grads as teachers. Of the 14 experiments only two worked and we got the expected r…

> 14 vastly different experiment of the caliber described in that post in the course of one semester My one remaining did-not-graduate nightmare is that I never completed that course. And I was an experimentalist. > This experience drove me right into theoretical physics Had a summer student work on my nearly-intractable dissertation experiment. He immediately switched to theory.

It's not that bad of a course, it's just a struggle because it's different than all other physics courses you take.

In that class you aren't being graded on getting to the right answer. You are getting graded on how you approach getting the right answer, and no one expects you to get the right answer - in the ball park is generally the average for the course.

Re: Electron band structure in germanium, my ass (2000)

#63
post #34
post #4

You sure it isn’t Schottky diodes formed by the metallic contacts that are interfering with the measurement of the bulk germanium properties? I’d sputter deposit metallic contact regions and solder to those, then maybe compare two different thickness samples and look at the difference in resistivity vs. temperature, essentially de-embedding your fixture.

Came here to say this. You can’t solder leads on to semiconductors willy-nilly. The work functions are too different. So instead of an ohmic contact, you get a diode.

Ok, I'm glad someone posted something.

It's not my sub field, but the description of the setup seemed soo haphazard

Re: Electron band structure in germanium, my ass (2000)

#67

Earlier quoted context omitted.

It's not just the pay; the pressure as a graduate student and not-yet-tenured professor is immense. The darkly humorous "A (de)motivational letter", purportedly by one "Prof. Hardass Slavedriver", sums it up: https://lifesciencephdadventures.wordpress.com/2013/01/04/a-...

> The darkly humorous "A (de)motivational letter" It's not just darkly humorous, it could almost be satire: > It has to the the kind of chemistry that people read and then jizz in their pants, they’re so excited about it. That’s right: we only do jizz-worthy chemistry I'll assume due to the nature of chemistry, the field doesn't suffer as much from non-reproducible data, but overall, this sentence alone might explain…

Huh? Nothing matters but results anywhere. Why would it be different in academia, where funding is always tight and tenure-track jobs scarce and hotly contested?

Re: Electron band structure in germanium, my ass (2000)

#68
>> Going into physics was the biggest mistake of my life. I should've declared CS. I still wouldn't have any women, but at least I'd be rolling in cash.

Hahaha, gold. I made that realization in the middle of my PhD and switched (40 years ago). Not regretting a moment. What broke me was the amount of politics you must engage in.

Re: Electron band structure in germanium, my ass (2000)

#69

Earlier quoted context omitted.

As is Mathematics.

https://xkcd.com/435/

I think he really missed out on making this a circle.

Because Mathematics is just applied philosophy. Which is just applied language... which is just applied sociology.

Re: Electron band structure in germanium, my ass (2000)

#70

>> Going into physics was the biggest mistake of my life. I should've declared CS. I still wouldn't have any women, but at least I'd be rolling in cash. Hahaha, gold. I made that realization in the middle of my PhD and switched (40 years ago). Not regretting a moment. What broke me was the amount of politics you must engage in.

I was 3rd semester into theoretical math in 1999. Got a job on a side as a tech support. Then realised I am earning more in an entry level tech job than I can ever hope to earn in math. Did my 2 + 2 and went tech with no hesitation.
Post reply on HN