Properties of the relaxation time distribution underlying the Kohlrausch-Williams-Watts photoionization of the DX centers in Cd(1-x)Mn(x)Te mixed crystals.
Identifieur interne : 001C94 ( Main/Exploration ); précédent : 001C93; suivant : 001C95Properties of the relaxation time distribution underlying the Kohlrausch-Williams-Watts photoionization of the DX centers in Cd(1-x)Mn(x)Te mixed crystals.
Auteurs : RBID : pubmed:21715788Abstract
In this paper we clarify the relationship between the relaxation rate and relaxation time distributions underlying the Kohlrausch-Williams-Watts (KWW) photoconductivity build-ups in indium- and gallium-doped Cd(1-x)Mn(x)Te mixed crystals. We discuss the role of asymptotic properties of the corresponding probability density functions. We show that the relaxation rate distribution, as a completely asymmetric α-stable distribution, leads to an infinite mean value of the effective relaxation rate. In contrast, the relaxation time distribution related to it leads to a finite mean value of the effective relaxation time. It follows from the experimental data analysis that for all the investigated samples the KWW exponent α decreases linearly with increasing photon flux in the range of (0.6-0.99) and its values are more spread in the case of gallium-doped material. We also observe a linear dependence of the mean relaxation time on the characteristic material time constant, which is consistent with the theoretical model.
DOI: 10.1088/0953-8984/21/34/345801
PubMed: 21715788
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Properties of the relaxation time distribution underlying the Kohlrausch-Williams-Watts photoionization of the DX centers in Cd(1-x)Mn(x)Te mixed crystals.</title><author><name sortKey="Trzmiel, J" uniqKey="Trzmiel J">J Trzmiel</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.</nlm:affiliation><country xml:lang="fr">Pologne</country><wicri:regionArea>Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw</wicri:regionArea></affiliation></author><author><name sortKey="Weron, K" uniqKey="Weron K">K Weron</name></author><author><name sortKey="Janczura, J" uniqKey="Janczura J">J Janczura</name></author><author><name sortKey="Placzek Popko, E" uniqKey="Placzek Popko E">E Placzek-Popko</name></author></titleStmt><publicationStmt><date when="2009">2009</date><idno type="doi">10.1088/0953-8984/21/34/345801</idno><idno type="RBID">pubmed:21715788</idno><idno type="pmid">21715788</idno><idno type="wicri:Area/Main/Corpus">001D27</idno><idno type="wicri:Area/Main/Curation">001D27</idno><idno type="wicri:Area/Main/Exploration">001C94</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this paper we clarify the relationship between the relaxation rate and relaxation time distributions underlying the Kohlrausch-Williams-Watts (KWW) photoconductivity build-ups in indium- and gallium-doped Cd(1-x)Mn(x)Te mixed crystals. We discuss the role of asymptotic properties of the corresponding probability density functions. We show that the relaxation rate distribution, as a completely asymmetric α-stable distribution, leads to an infinite mean value of the effective relaxation rate. In contrast, the relaxation time distribution related to it leads to a finite mean value of the effective relaxation time. It follows from the experimental data analysis that for all the investigated samples the KWW exponent α decreases linearly with increasing photon flux in the range of (0.6-0.99) and its values are more spread in the case of gallium-doped material. We also observe a linear dependence of the mean relaxation time on the characteristic material time constant, which is consistent with the theoretical model.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">21715788</PMID><DateCreated><Year>2011</Year><Month>06</Month><Day>30</Day></DateCreated><DateCompleted><Year>2012</Year><Month>10</Month><Day>02</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1361-648X</ISSN><JournalIssue CitedMedium="Internet"><Volume>21</Volume><Issue>34</Issue><PubDate><Year>2009</Year><Month>Aug</Month><Day>26</Day></PubDate></JournalIssue><Title>Journal of physics. Condensed matter : an Institute of Physics journal</Title><ISOAbbreviation>J Phys Condens Matter</ISOAbbreviation></Journal><ArticleTitle>Properties of the relaxation time distribution underlying the Kohlrausch-Williams-Watts photoionization of the DX centers in Cd(1-x)Mn(x)Te mixed crystals.</ArticleTitle><Pagination><MedlinePgn>345801</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1088/0953-8984/21/34/345801</ELocationID><Abstract><AbstractText>In this paper we clarify the relationship between the relaxation rate and relaxation time distributions underlying the Kohlrausch-Williams-Watts (KWW) photoconductivity build-ups in indium- and gallium-doped Cd(1-x)Mn(x)Te mixed crystals. We discuss the role of asymptotic properties of the corresponding probability density functions. We show that the relaxation rate distribution, as a completely asymmetric α-stable distribution, leads to an infinite mean value of the effective relaxation rate. In contrast, the relaxation time distribution related to it leads to a finite mean value of the effective relaxation time. It follows from the experimental data analysis that for all the investigated samples the KWW exponent α decreases linearly with increasing photon flux in the range of (0.6-0.99) and its values are more spread in the case of gallium-doped material. We also observe a linear dependence of the mean relaxation time on the characteristic material time constant, which is consistent with the theoretical model.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Trzmiel</LastName><ForeName>J</ForeName><Initials>J</Initials><Affiliation>Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.</Affiliation></Author><Author ValidYN="Y"><LastName>Weron</LastName><ForeName>K</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Janczura</LastName><ForeName>J</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Placzek-Popko</LastName><ForeName>E</ForeName><Initials>E</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2009</Year><Month>08</Month><Day>05</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>J Phys Condens Matter</MedlineTA><NlmUniqueID>101165248</NlmUniqueID><ISSNLinking>0953-8984</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2009</Year><Month>8</Month><Day>05</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>7</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>8</Month><Day>26</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>8</Month><Day>26</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">S0953-8984(09)17316-2</ArticleId><ArticleId IdType="doi">10.1088/0953-8984/21/34/345801</ArticleId><ArticleId IdType="pubmed">21715788</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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