1.
Phys Rev B Condens Matter
; 50(21): 15967-15973, 1994 Dec 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-9975965
2.
Rev Sci Instrum
; 49(3): 356, 1978 Mar.
Artigo
em Inglês
| MEDLINE
| ID: mdl-18699096
RESUMO
A control and measurement system is described that provides direct digital output of the electrical resistance of a metal sample with an uncertainty of < or =5 x 10(-9) Omega at 1.7 K with a linearity of +/-0.04%. In addition, the system allows in situ isochronal and isothermal annealing experiments to be performed with DeltaT< or =0.1 degrees C and Deltat< or =3 s between any two temperatures. With the exception of two commercial instruments, all devices were made with readily available components.