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Article: Observation of above-barrier transitions in superlattices with small magnetically induced band offsets

TitleObservation of above-barrier transitions in superlattices with small magnetically induced band offsets
Authors
Issue Date1994
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B, 1994, v. 50 n. 24, p. 18153-18166 How to Cite?
AbstractUsing magneto-optical absorption in ZnSe/Zn1-xMnxSe superlattices, we have observed a series of transitions involving above-barrier states of the conduction and valence bands, at the zone center and at the zone edge of the superlattice Brillouin zone. The Mn concentration in Zn1-xMnxSe layers (x0.04) has been specifically chosen such that the bowing of the band gap with x and the strain in the superlattice together give rise to conduction- and valence-band offsets, which are nearly zero in the absence of a magnetic field. Owing to the large Zeeman splittings of band edges that occur in the Zn1-xMnxSe layers, the band alignment in these superlattices can be externally tuned by an applied magnetic field, providing a unique laboratory for investigating above-barrier subbands in a superlattice defined by very small periodic-potential variations (intermediate-dimensionality regime). The magnetic-field tuning, together with calculations based on an eight-band kp model, allow us to unambiguously identify the transitions, and to compare the observed transition energies with theoretical predictions. © 1994 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/174630
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDai, Nen_US
dc.contributor.authorRamMohan, LRen_US
dc.contributor.authorLuo, Hen_US
dc.contributor.authorYang, GLen_US
dc.contributor.authorZhang, FCen_US
dc.contributor.authorDobrowolska, Men_US
dc.contributor.authorFurdyna, JKen_US
dc.date.accessioned2012-11-26T08:46:36Z-
dc.date.available2012-11-26T08:46:36Z-
dc.date.issued1994en_US
dc.identifier.citationPhysical Review B, 1994, v. 50 n. 24, p. 18153-18166en_US
dc.identifier.issn0163-1829en_US
dc.identifier.urihttp://hdl.handle.net/10722/174630-
dc.description.abstractUsing magneto-optical absorption in ZnSe/Zn1-xMnxSe superlattices, we have observed a series of transitions involving above-barrier states of the conduction and valence bands, at the zone center and at the zone edge of the superlattice Brillouin zone. The Mn concentration in Zn1-xMnxSe layers (x0.04) has been specifically chosen such that the bowing of the band gap with x and the strain in the superlattice together give rise to conduction- and valence-band offsets, which are nearly zero in the absence of a magnetic field. Owing to the large Zeeman splittings of band edges that occur in the Zn1-xMnxSe layers, the band alignment in these superlattices can be externally tuned by an applied magnetic field, providing a unique laboratory for investigating above-barrier subbands in a superlattice defined by very small periodic-potential variations (intermediate-dimensionality regime). The magnetic-field tuning, together with calculations based on an eight-band kp model, allow us to unambiguously identify the transitions, and to compare the observed transition energies with theoretical predictions. © 1994 The American Physical Society.en_US
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.relation.ispartofPhysical Review Ben_US
dc.titleObservation of above-barrier transitions in superlattices with small magnetically induced band offsetsen_US
dc.typeArticleen_US
dc.identifier.emailZhang, FC: fuchun@hkucc.hku.hken_US
dc.identifier.authorityZhang, FC=rp00840en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1103/PhysRevB.50.18153en_US
dc.identifier.scopuseid_2-s2.0-0001072941en_US
dc.identifier.volume50en_US
dc.identifier.issue24en_US
dc.identifier.spage18153en_US
dc.identifier.epage18166en_US
dc.identifier.isiWOS:A1994QB02200037-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridDai, N=7005754939en_US
dc.identifier.scopusauthoridRamMohan, LR=7004083708en_US
dc.identifier.scopusauthoridLuo, H=24772750400en_US
dc.identifier.scopusauthoridYang, GL=7405755484en_US
dc.identifier.scopusauthoridZhang, FC=14012468800en_US
dc.identifier.scopusauthoridDobrowolska, M=10539412000en_US
dc.identifier.scopusauthoridFurdyna, JK=7101686144en_US

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