Planck's constant measurement by Landauer quantization for student laboratories

被引：6
|
作者：
Damyanov, Desislav S. [1 ]
Pavlova, Iliana N. [1 ]
Ilieva, Simona I. [1 ]
Gourev, Vassil N. [1 ]
Yordanov, Vasil G. [1 ]
Mishonov, Todor M. [1 ]
机构：
[1] St Clement Ohrid Univ Sofia, Fac Phys, BG-1164 Sofia, Bulgaria
来源：
EUROPEAN JOURNAL OF PHYSICS | 2015年 / 36卷 / 05期
关键词：
Landauer quantization of conductivity; Planck's constant; conductance quantum; measurement; CONDUCTANCE;
D O I：
10.1088/0143-0807/36/5/055047
中图分类号：
G40 [教育学];
学科分类号：
040101 ; 120403 ;
摘要：
A simple experimental setup for measuring Planck's constant, using Landauer quantization of the conductance between touching gold wires, is described. It consists of two gold wires with thickness of 500 mu m and 1.5 cm length, and an operational amplifier. The setup costs less than $30 and can be realized in every teaching laboratory in two weeks. The use of an oscilloscope is required.
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页数：13
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