Holes in Hall Effect

dc.creator	Lianxi Ma
dc.creator	Qingli Zhao
dc.creator	Chi Chen
dc.date	2009-01-01T00:00:00Z
dc.date.accessioned	2015-07-20T22:09:38Z
dc.date.available	2015-07-20T22:09:38Z
dc.identifier	1870-9095
dc.identifier	https://doaj.org/article/e96f5aac8b2f474cba39c09d5679e030
dc.identifier.uri	http://evidence.thinkportal.org/handle/123456789/12963
dc.description	Hall Effect can be used to determine the signs of current carriers in metals and semiconductors. It is well known thatwhen electrons are current carriers, the Hall coefficient is negative, i.e. RH<0; when holes are current carriers, the Hallcoefficient is positive, i.e. RH>0. However, puzzling arises regarding that in both scenarios; the essential movingparticles are electrons. Therefore, there should not have any different effect in theory. We discuss the details abouttwo situations and point out that both quantum and classical mechanics give same current direction under externalelectric field. However, under the influence of external magnetic field, because the mass of electrons is negative atvalence band, electrons move to the opposite direction of its Lorentz force, which behave like a positive charge andgive positive RH.
dc.language	English
dc.language	Spanish
dc.language	Portuguese
dc.publisher	Instituto Politécnico Nacional, Latin American Physics Education Network
dc.relation	http://journal.lapen.org.mx/jan09/LAJPE%20225%20Lianxi%20Ma%20Preprint%20f.pdf
dc.relation	https://doaj.org/toc/1870-9095
dc.source	Latin-American Journal of Physics Education, Vol 3, Iss 1, Pp 48-51 (2009)
dc.subject	Hall effect
dc.subject
dc.subject	Hall coefficient
dc.subject	Holes
dc.subject	Effective mass
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	DOAJ:Education
dc.subject	DOAJ:Social Sciences
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	DOAJ:Education
dc.subject	DOAJ:Social Sciences
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.title	Holes in Hall Effect
dc.type	article