Horace Hewitt Poole
Horace Hewitt Poole (1886–1962) was an Irish physicist and academic who worked in radioactivity and experimental physics. A Trinity Scholar in 1905, he graduated as Senior Moderator in 1907. In 1909 Poole was appointed assistant in the Physics Department of Trinity College Dublin, and remained in that post until 1921, when he became chief executive officer for science at the Royal Dublin Society (R.D.S.).[1][better source needed]
Poole's research covered several areas, including radioactivity in rocks and studies of conduction in solids. In 1916, he reported that mica exhibited non-ohmic conduction at high electric fields, and described an empirical relationship between conductivity and field strength.[citation needed] This relationship late became known as Poole's law and was subsequently given a theoretical explanation by Yakov Frenkel in terms of quantum tunnelling,[2] forming the basis of what is now called the Poole–Frenkel effect. The effect is used in solid-state physics to describe field-enhanced conductivity in insulators and semiconductors.[3]
Poole continued to investigate electrical conduction in dielectrics, including glass. In 1936, he was awarded the Boyle Medal by the R.D.S.[citation needed] He edited later editions of Thomas Preston's Theory of Heat and collaborated with his brother, J.H.J. Poole, on photometry and underwater illumination using photoelectric methods.[citation needed]
References
- ↑ Eric, Finch (2016). Three Centuries of Physics in Trinity College Dublin. Search this book on
- ↑ Frenkel, J. (1938-10-15). "On Pre-Breakdown Phenomena in Insulators and Electronic Semi-Conductors". Physical Review. 54 (8): 647–648. Bibcode:1938PhRv...54..647F. doi:10.1103/physrev.54.647. ISSN 0031-899X.
- ↑ Poole, H.H. (July 1916). "VIII. On the dielectric constant and electrical conductivity of mica in intense fields". The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science. 32 (187): 112–129. doi:10.1080/14786441608635546. ISSN 1941-5982.
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