On the band spectrum in p-type HgTe/CdHgTe heterostructures and its transformation under temperature variation
The magnetoabsorption and interband photoconductivity spectra of HgTe/CdHgTe quantum wells exhibiting p -type conductivity are studied at different temperatures. It is shown that, for a sample with a normal band structure, the long-wavelength edge of the spectra shifts to higher energies with temper...
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| Veröffentlicht in: | Semiconductors (Woodbury, N.Y.) N.Y.), 2017-12, Vol.51 (12), p.1531-1536 |
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| container_title | Semiconductors (Woodbury, N.Y.) |
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| creator | Ikonnikov, A. V. Bovkun, L. S. Rumyantsev, V. V. Krishtopenko, S. S. Aleshkin, V. Ya Kadykov, A. M. Orlita, M. Potemski, M. Gavrilenko, V. I. Morozov, S. V. Dvoretsky, S. A. Mikhailov, N. N. |
| description | The magnetoabsorption and interband photoconductivity spectra of HgTe/CdHgTe quantum wells exhibiting
p
-type conductivity are studied at different temperatures. It is shown that, for a sample with a normal band structure, the long-wavelength edge of the spectra shifts to higher energies with temperature increase, indicating an increase of the band gap in the quantum well. For a sample with an inverted band structure, it is for the first time found that the long-wavelength cut-off shifts to lower energies due to the topological phase transition from the inverted band structure to the normal structure with temperature increase. The experimental data are in agreement with the results of theoretical band-structure calculations based on the Kane model. |
| doi_str_mv | 10.1134/S1063782617120090 |
| format | Article |
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p
-type conductivity are studied at different temperatures. It is shown that, for a sample with a normal band structure, the long-wavelength edge of the spectra shifts to higher energies with temperature increase, indicating an increase of the band gap in the quantum well. For a sample with an inverted band structure, it is for the first time found that the long-wavelength cut-off shifts to lower energies due to the topological phase transition from the inverted band structure to the normal structure with temperature increase. The experimental data are in agreement with the results of theoretical band-structure calculations based on the Kane model.</description><identifier>ISSN: 1063-7826</identifier><identifier>EISSN: 1090-6479</identifier><identifier>DOI: 10.1134/S1063782617120090</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>2017 ; Band structure ; Band structure of solids ; Electric properties ; Heterostructures ; Magnetic Materials ; Magnetism ; March 13–16 ; MATERIALS SCIENCE ; MERCURY TELLURIDES ; Nizhny Novgorod ; PHASE TRANSFORMATIONS ; Phase transitions ; Photoconductivity ; Physics ; Physics and Astronomy ; QUANTUM WELLS ; SPECTRA ; Temperature ; XXI International Symposium “Nanophysics and Nanoelectronics”</subject><ispartof>Semiconductors (Woodbury, N.Y.), 2017-12, Vol.51 (12), p.1531-1536</ispartof><rights>Pleiades Publishing, Ltd. 2017</rights><rights>COPYRIGHT 2017 Springer</rights><rights>Copyright Springer Science & Business Media 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c383t-b51a9b058945e1ab6a39a8ca3354aeb0c386e9ab7bc8653ec4b454f95700f4ab3</citedby><cites>FETCH-LOGICAL-c383t-b51a9b058945e1ab6a39a8ca3354aeb0c386e9ab7bc8653ec4b454f95700f4ab3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1063782617120090$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1063782617120090$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,315,782,786,887,27933,27934,41497,42566,51328</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22756243$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Ikonnikov, A. V.</creatorcontrib><creatorcontrib>Bovkun, L. S.</creatorcontrib><creatorcontrib>Rumyantsev, V. V.</creatorcontrib><creatorcontrib>Krishtopenko, S. S.</creatorcontrib><creatorcontrib>Aleshkin, V. Ya</creatorcontrib><creatorcontrib>Kadykov, A. M.</creatorcontrib><creatorcontrib>Orlita, M.</creatorcontrib><creatorcontrib>Potemski, M.</creatorcontrib><creatorcontrib>Gavrilenko, V. I.</creatorcontrib><creatorcontrib>Morozov, S. V.</creatorcontrib><creatorcontrib>Dvoretsky, S. A.</creatorcontrib><creatorcontrib>Mikhailov, N. N.</creatorcontrib><title>On the band spectrum in p-type HgTe/CdHgTe heterostructures and its transformation under temperature variation</title><title>Semiconductors (Woodbury, N.Y.)</title><addtitle>Semiconductors</addtitle><description>The magnetoabsorption and interband photoconductivity spectra of HgTe/CdHgTe quantum wells exhibiting
p
-type conductivity are studied at different temperatures. It is shown that, for a sample with a normal band structure, the long-wavelength edge of the spectra shifts to higher energies with temperature increase, indicating an increase of the band gap in the quantum well. For a sample with an inverted band structure, it is for the first time found that the long-wavelength cut-off shifts to lower energies due to the topological phase transition from the inverted band structure to the normal structure with temperature increase. The experimental data are in agreement with the results of theoretical band-structure calculations based on the Kane model.</description><subject>2017</subject><subject>Band structure</subject><subject>Band structure of solids</subject><subject>Electric properties</subject><subject>Heterostructures</subject><subject>Magnetic Materials</subject><subject>Magnetism</subject><subject>March 13–16</subject><subject>MATERIALS SCIENCE</subject><subject>MERCURY TELLURIDES</subject><subject>Nizhny Novgorod</subject><subject>PHASE TRANSFORMATIONS</subject><subject>Phase transitions</subject><subject>Photoconductivity</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>QUANTUM WELLS</subject><subject>SPECTRA</subject><subject>Temperature</subject><subject>XXI International Symposium “Nanophysics and Nanoelectronics”</subject><issn>1063-7826</issn><issn>1090-6479</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kUtL7TAQx4so-PwA7gKuq5nm0WYpB18guLjedUhypudEbFqTVPDbm3oEhcsli3-Y-f2HeVTVOdBLAMav_gCVrO0aCS00lCq6Vx1BkVryVu0vf8nqJX9YHaf0QilAJ_hRFZ4CyVsk1oQ1SRO6HOeB-ECmOn9MSO43z3i1Wi9CtpgxjqkQLs8RE1k8PieSowmpH-Ngsh8DmcMaI8k4TBjNQpJ3E_1X7rQ66M1rwrNvPan-3t48r-7rx6e7h9X1Y-1Yx3JtBRhlqegUFwjGSsOU6ZxhTHCDlhZKojK2ta6TgqHjlgveK9FS2nNj2Ul1satb2vU6OZ_Rbd0YQhlQN00rZMPZDzXF8W3GlPXLOMdQGtOgWg5S0o4W6nJHbcwrah_6sczrylvj4EtN7H2JX4sGhIKy_2KAncGVbaWIvZ6iH0z80ED1ci39z7WKp9l5UmHDBuOvVv5r-gRsQpaz</recordid><startdate>20171201</startdate><enddate>20171201</enddate><creator>Ikonnikov, A. 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p
-type conductivity are studied at different temperatures. It is shown that, for a sample with a normal band structure, the long-wavelength edge of the spectra shifts to higher energies with temperature increase, indicating an increase of the band gap in the quantum well. For a sample with an inverted band structure, it is for the first time found that the long-wavelength cut-off shifts to lower energies due to the topological phase transition from the inverted band structure to the normal structure with temperature increase. The experimental data are in agreement with the results of theoretical band-structure calculations based on the Kane model.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1063782617120090</doi><tpages>6</tpages></addata></record> |
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| subjects | 2017 Band structure Band structure of solids Electric properties Heterostructures Magnetic Materials Magnetism March 13–16 MATERIALS SCIENCE MERCURY TELLURIDES Nizhny Novgorod PHASE TRANSFORMATIONS Phase transitions Photoconductivity Physics Physics and Astronomy QUANTUM WELLS SPECTRA Temperature XXI International Symposium “Nanophysics and Nanoelectronics” |
| title | On the band spectrum in p-type HgTe/CdHgTe heterostructures and its transformation under temperature variation |
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