Numerical simulation of exciton dynamics in cuprous oxide at ultra low temperatures

Sunipa Som

doi:10.18453/rosdok_id00001585

Sunipa Som

Numerical simulation of exciton dynamics in cuprous oxide at ultra low temperatures

Universität Rostock, 2015

https://doi.org/10.18453/rosdok_id00001585

Abstract: This thesis is a theoretical investigation of the relaxation behaviour of excitons in Cuprous Oxide at ultra low temperatures when the excitons are confined within a potential trap and also in a homogeneous system. Under the action of deformation potential phonon scattering only, Bose Einstein Condensation (BEC) occurs for all temperatures in the investigated range. In the case of Auger decay, we do not find at any temperature a BEC due to the heating of the exciton gas. In the case of elastic and phonon-scattering together BEC occurs in this case of 0.1 K.

Dissertation Freier Zugang

Titel:

Numerical simulation of exciton dynamics in cuprous oxide at ultra low temperatures

Beteiligte Personen:

Sunipa Som[VerfasserIn]
	1075019222
Heinrich Stolz , Prof. Dr.[AkademischeR BetreuerIn]
	138064105
	University of Rostock, Institute of Physics
Wolf Dietrich Kraeft , Prof. Dr.[AkademischeR BetreuerIn]
	14277619X
	University of Rostock, Institute of Physics
Manfred Bayer , Prof. Dr.[AkademischeR BetreuerIn]
	TU Dortmund University, Physics Department

Beteiligte Körperschaften:

Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution]
	2147083-2

Zusammenfassung:

This thesis is a theoretical investigation of the relaxation behaviour of excitons in Cuprous Oxide at ultra low temperatures when the excitons are confined within a potential trap and also in a homogeneous system. Under the action of deformation potential phonon scattering only, Bose Einstein Condensation (BEC) occurs for all temperatures in the investigated range. In the case of Auger decay, we do not find at any temperature a BEC due to the heating of the exciton gas. In the case of elastic and phonon-scattering together BEC occurs in this case of 0.1 K. [Englisch]

Dokumenttyp:

Dissertation

Einrichtung:

Mathematisch-Naturwissenschaftliche Fakultät

Sprache:

Englisch

Sachgruppe der DNB:

530 Physik

Veröffentlichung /
Entstehung:

Rostock: Universität Rostock

2015

Identifikatoren: