Effects of spin–orbit interactions, external fields and eccentricity on the optical absorption of an elliptical quantum ring
In this work, the effects of the Rashba and Dresselhaus spin–orbit interactions, eccentricity and external electric and magnetic fields on the linear optical absorption in an elliptical quantum ring are studied. The electronic structure is determined using the finite element method, and the linear o...
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| Veröffentlicht in: | The European physical journal. B, Condensed matter physics Condensed matter physics, 2019, Vol.92 (1), p.1-6, Article 19 |
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| container_title | The European physical journal. B, Condensed matter physics |
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| creator | Ashrafi-Dalkhani, Vahid Ghajarpour-Nobandegani, Sajad Karimi, Mohammad Javad |
| description | In this work, the effects of the Rashba and Dresselhaus spin–orbit interactions, eccentricity and external electric and magnetic fields on the linear optical absorption in an elliptical quantum ring are studied. The electronic structure is determined using the finite element method, and the linear optical absorption coefficient is calculated by the density matrix approach. Results indicate that the spin–orbit interaction and magnetic field lead to the splitting and oscillatory behavior of the energy levels, respectively. The resonant peak of the linear optical absorption shifts to the higher energies with increasing eccentricity. The magnitude and position of the resonant peaks have non-monotonic behaviors with the external fields.
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| doi_str_mv | 10.1140/epjb/e2018-90691-5 |
| format | Article |
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Graphical abstract</description><subject>Absorptivity</subject><subject>Analysis</subject><subject>Complex Systems</subject><subject>Condensed Matter Physics</subject><subject>Eccentric orbits</subject><subject>Electronic structure</subject><subject>Energy levels</subject><subject>Finite element method</subject><subject>Fluid- and Aerodynamics</subject><subject>Magnetic fields</subject><subject>Mathematical analysis</subject><subject>Matrix methods</subject><subject>Orbits (Astrophysics)</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Regular Article</subject><subject>Solid State Physics</subject><issn>1434-6028</issn><issn>1434-6036</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kctq3DAUhk1pIGmSF8hK0FWhTnSzZS2HkCYDA4Ume6GRj6YaPJIjydBsQt-hb9gniZwJDbMpWuj2fQfp_FV1QfAlIRxfwbhdXwHFpKslbiWpmw_VCeGM1y1m7cd_a9odV59S2mKMSUv4SfV8Yy2YnFCwKI3O__39J8S1y8j5DFGb7IJPXxH8KjuvB2QdDH1C2vcIjAGfozMuP6HgUf4JKIzZmYLpdQpxnOW5sPYIhsG93T1O2udph6Lzm7PqyOohwfnbfFo9fLt5uL6rV99vl9eLVW2YpLnmkkpOBOsoF2vNTC8M4WAw7kFijVmjsWFE0KZrWit7o4UVwDveMtb2vWWn1ed92TGGxwlSVtswzf9JipK2o5QIIQt1uac2egDlvA25dKCMHnbOBA_WlfNFIxlrSCNFEb4cCIXJpVMbPaWklvc_Dlm6Z00MKUWwaoxup-OTIljNGao5Q_WaoXrNUDVFYnspjXO3IL6_-z_WC_ATotY</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>Ashrafi-Dalkhani, Vahid</creator><creator>Ghajarpour-Nobandegani, Sajad</creator><creator>Karimi, Mohammad Javad</creator><general>Springer Berlin Heidelberg</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope></search><sort><creationdate>2019</creationdate><title>Effects of spin–orbit interactions, external fields and eccentricity on the optical absorption of an elliptical quantum ring</title><author>Ashrafi-Dalkhani, Vahid ; Ghajarpour-Nobandegani, Sajad ; Karimi, Mohammad Javad</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-492941738247ba3cd7c14ec00de90a035a0c31725856f9dca7f7e4846336ddf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Absorptivity</topic><topic>Analysis</topic><topic>Complex Systems</topic><topic>Condensed Matter Physics</topic><topic>Eccentric orbits</topic><topic>Electronic structure</topic><topic>Energy levels</topic><topic>Finite element method</topic><topic>Fluid- and Aerodynamics</topic><topic>Magnetic fields</topic><topic>Mathematical analysis</topic><topic>Matrix methods</topic><topic>Orbits (Astrophysics)</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Regular Article</topic><topic>Solid State Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ashrafi-Dalkhani, Vahid</creatorcontrib><creatorcontrib>Ghajarpour-Nobandegani, Sajad</creatorcontrib><creatorcontrib>Karimi, Mohammad Javad</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>The European physical journal. B, Condensed matter physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ashrafi-Dalkhani, Vahid</au><au>Ghajarpour-Nobandegani, Sajad</au><au>Karimi, Mohammad Javad</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of spin–orbit interactions, external fields and eccentricity on the optical absorption of an elliptical quantum ring</atitle><jtitle>The European physical journal. B, Condensed matter physics</jtitle><stitle>Eur. Phys. J. B</stitle><date>2019</date><risdate>2019</risdate><volume>92</volume><issue>1</issue><spage>1</spage><epage>6</epage><pages>1-6</pages><artnum>19</artnum><issn>1434-6028</issn><eissn>1434-6036</eissn><abstract>In this work, the effects of the Rashba and Dresselhaus spin–orbit interactions, eccentricity and external electric and magnetic fields on the linear optical absorption in an elliptical quantum ring are studied. The electronic structure is determined using the finite element method, and the linear optical absorption coefficient is calculated by the density matrix approach. Results indicate that the spin–orbit interaction and magnetic field lead to the splitting and oscillatory behavior of the energy levels, respectively. The resonant peak of the linear optical absorption shifts to the higher energies with increasing eccentricity. The magnitude and position of the resonant peaks have non-monotonic behaviors with the external fields.
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| subjects | Absorptivity Analysis Complex Systems Condensed Matter Physics Eccentric orbits Electronic structure Energy levels Finite element method Fluid- and Aerodynamics Magnetic fields Mathematical analysis Matrix methods Orbits (Astrophysics) Physics Physics and Astronomy Regular Article Solid State Physics |
| title | Effects of spin–orbit interactions, external fields and eccentricity on the optical absorption of an elliptical quantum ring |
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