Share

A SEMIMETAL WITH CONDUCTIVITY SHOWING EXPONENTIAL VARIATION WITH TEMPERATURE AT LOW TEMPERATURES.

Author(s) : SENGUPTA M., BHATTACHARYA R.

Type of article: Article

Summary

ANTIMONY GOES INTO SOLID SOLUTION WITH BISMUTH IN DIFFERENT PERCENTAGES OF COMPOSITIONS. AT LOWER CONCENTRATIONS OF ANTIMONY, THE ALLOY IS METALLIC IN NATURE, WHILE AT HIGHER CONCENTRATIONS IT IS SEMICONDUCTING. PHYSICAL PROPERTIES OF A SEMIMETALLIC ALLOY EG, ELECTRICAL CONDUCTIVITY, HALL EFFECT, DIAMAGNETIC SUSCEPTIBILITY HAVE BEEN STUDIED. THE SUBSTANC HW ER I. BUT FROM 170 TO 300 K, IT SHOWS AN EXPONENTIAL CHANGES DECREASE OF CONDUCTIVITY WITH RISE OF TEMPERATURE. THIS PECULIAR PHENOMENON HAS BEEN EXPLAINED TO BE DUE TO AN EXCITATION OF ELECTRONS FROM A VALENCE BAND TO ANOTHER VALENCE BAND.

Details

  • Original title: A SEMIMETAL WITH CONDUCTIVITY SHOWING EXPONENTIAL VARIATION WITH TEMPERATURE AT LOW TEMPERATURES.
  • Record ID : 1987-0029
  • Languages: English
  • Source: Indian J. Cryog. - vol. 10 - n. 3
  • Publication date: 1985
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (5)
See the source

Indexing