Pulsed-THz Characterization of Hg-Based, High-Temperature Superconductors
We report on ultrafast THz-pulse time-domain spectroscopy (TDS) and femtosecond optical-pump THz-probe (OPTP) studies of Hg-Ba-Ca-Cu-O (HBCCO) high-temperature, superconducting thin films. Our 500-nm-thick films were prepared by rf-magnetron sputtering of Re-Ba-Ca-Cu-O precursor films, followed by a...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.3614-3617 |
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| container_title | IEEE transactions on applied superconductivity |
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| creator | Cross, X.L. Zheng, X. Cunningham, P.D. Hayden, L.M. Chromik, S. Sojkova, M. Strbik, V. Odier, P. Sobolewski, R. |
| description | We report on ultrafast THz-pulse time-domain spectroscopy (TDS) and femtosecond optical-pump THz-probe (OPTP) studies of Hg-Ba-Ca-Cu-O (HBCCO) high-temperature, superconducting thin films. Our 500-nm-thick films were prepared by rf-magnetron sputtering of Re-Ba-Ca-Cu-O precursor films, followed by an ex-situ , high-temperature mercuration process. The resulting films were c axis oriented with a predominant Hg-1212 (plus some Hg-1223) phase. Their transition temperature T c had an onset at 122 K and zero resistance at 110 K. The THz TDS measurements demonstrated a sharp drop in the transmitted THz signal when the sample temperature was decreased below T c , which we directly related to a change in the imaginary component of the film complex conductivity. Simultaneously, the peak of the temperature-dependent real part of the conductivity was shifted toward lower frequencies at lower temperatures. The time-resolved OPTP spectroscopy experiments showed that the quasiparticle relaxation process exhibited an intrinsic single-picosecond dynamics with no phonon bottleneck, which is a unique feature among superconductors and makes the HBCCO material promising for ultrafast radiation detector applications. |
| doi_str_mv | 10.1109/TASC.2009.2018122 |
| format | Article |
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Our 500-nm-thick films were prepared by rf-magnetron sputtering of Re-Ba-Ca-Cu-O precursor films, followed by an ex-situ , high-temperature mercuration process. The resulting films were c axis oriented with a predominant Hg-1212 (plus some Hg-1223) phase. Their transition temperature T c had an onset at 122 K and zero resistance at 110 K. The THz TDS measurements demonstrated a sharp drop in the transmitted THz signal when the sample temperature was decreased below T c , which we directly related to a change in the imaginary component of the film complex conductivity. Simultaneously, the peak of the temperature-dependent real part of the conductivity was shifted toward lower frequencies at lower temperatures. The time-resolved OPTP spectroscopy experiments showed that the quasiparticle relaxation process exhibited an intrinsic single-picosecond dynamics with no phonon bottleneck, which is a unique feature among superconductors and makes the HBCCO material promising for ultrafast radiation detector applications.</description><identifier>ISSN: 1051-8223</identifier><identifier>EISSN: 1558-2515</identifier><identifier>DOI: 10.1109/TASC.2009.2018122</identifier><identifier>CODEN: ITASE9</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Complex conductivity of superconductors ; Conductivity ; COPPER OXIDE ; ELECTRICAL CONDUCTIVITY ; Electrical engineering. Electrical power engineering ; Electromagnets ; Electronics ; Exact sciences and technology ; Femtosecond ; femtosecond pump-probe spectroscopy ; General equipment and techniques ; Hg-Ba-Ca-Cu-O compound ; High temperature superconductors ; IMPACT TESTS ; Instruments, apparatus, components and techniques common to several branches of physics and astronomy ; Optical films ; Optical pulses ; Optoelectronic devices ; Physics ; Precursors ; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices ; Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing ; Spectroscopy ; Spectrum analysis ; Superconducting devices ; Superconducting films ; Superconducting thin films ; Superconducting transition temperature ; SUPERCONDUCTIVITY ; SUPERCONDUCTORS ; THIN FILMS ; THz time-domain spectroscopy ; Time domain analysis ; TRANSITION TEMPERATURE ; Ultrafast optics ; ultrafast superconducting photodetectors ; Various equipment and components</subject><ispartof>IEEE transactions on applied superconductivity, 2009-06, Vol.19 (3), p.3614-3617</ispartof><rights>2009 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c354t-1f8660644a24455af1b2117ebedb712bdfec22d0e4bf195e502a70d409c262d83</citedby><cites>FETCH-LOGICAL-c354t-1f8660644a24455af1b2117ebedb712bdfec22d0e4bf195e502a70d409c262d83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/5153153$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,792,23910,23911,25119,27903,27904,54736</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/5153153$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21986541$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Cross, X.L.</creatorcontrib><creatorcontrib>Zheng, X.</creatorcontrib><creatorcontrib>Cunningham, P.D.</creatorcontrib><creatorcontrib>Hayden, L.M.</creatorcontrib><creatorcontrib>Chromik, S.</creatorcontrib><creatorcontrib>Sojkova, M.</creatorcontrib><creatorcontrib>Strbik, V.</creatorcontrib><creatorcontrib>Odier, P.</creatorcontrib><creatorcontrib>Sobolewski, R.</creatorcontrib><title>Pulsed-THz Characterization of Hg-Based, High-Temperature Superconductors</title><title>IEEE transactions on applied superconductivity</title><addtitle>TASC</addtitle><description>We report on ultrafast THz-pulse time-domain spectroscopy (TDS) and femtosecond optical-pump THz-probe (OPTP) studies of Hg-Ba-Ca-Cu-O (HBCCO) high-temperature, superconducting thin films. Our 500-nm-thick films were prepared by rf-magnetron sputtering of Re-Ba-Ca-Cu-O precursor films, followed by an ex-situ , high-temperature mercuration process. The resulting films were c axis oriented with a predominant Hg-1212 (plus some Hg-1223) phase. Their transition temperature T c had an onset at 122 K and zero resistance at 110 K. The THz TDS measurements demonstrated a sharp drop in the transmitted THz signal when the sample temperature was decreased below T c , which we directly related to a change in the imaginary component of the film complex conductivity. Simultaneously, the peak of the temperature-dependent real part of the conductivity was shifted toward lower frequencies at lower temperatures. The time-resolved OPTP spectroscopy experiments showed that the quasiparticle relaxation process exhibited an intrinsic single-picosecond dynamics with no phonon bottleneck, which is a unique feature among superconductors and makes the HBCCO material promising for ultrafast radiation detector applications.</description><subject>Applied sciences</subject><subject>Complex conductivity of superconductors</subject><subject>Conductivity</subject><subject>COPPER OXIDE</subject><subject>ELECTRICAL CONDUCTIVITY</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electromagnets</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Femtosecond</subject><subject>femtosecond pump-probe spectroscopy</subject><subject>General equipment and techniques</subject><subject>Hg-Ba-Ca-Cu-O compound</subject><subject>High temperature superconductors</subject><subject>IMPACT TESTS</subject><subject>Instruments, apparatus, components and techniques common to several branches of physics and astronomy</subject><subject>Optical films</subject><subject>Optical pulses</subject><subject>Optoelectronic devices</subject><subject>Physics</subject><subject>Precursors</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><subject>Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing</subject><subject>Spectroscopy</subject><subject>Spectrum analysis</subject><subject>Superconducting devices</subject><subject>Superconducting films</subject><subject>Superconducting thin films</subject><subject>Superconducting transition temperature</subject><subject>SUPERCONDUCTIVITY</subject><subject>SUPERCONDUCTORS</subject><subject>THIN FILMS</subject><subject>THz time-domain spectroscopy</subject><subject>Time domain analysis</subject><subject>TRANSITION TEMPERATURE</subject><subject>Ultrafast optics</subject><subject>ultrafast superconducting photodetectors</subject><subject>Various equipment and components</subject><issn>1051-8223</issn><issn>1558-2515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkcFKw0AQhoMoWKsPIF6CIF5M3ZnspptjLWoLBYXG87LZTNqUNqm7ycE-vRtaPAjDzMB88zP8EwS3wEYALH3OJsvpCBlLfQIJiGfBAISQEQoQ575nAiKJGF8GV85tGAMuuRgE889u66iIstkhnK611aYlWx10WzV12JThbBW9aA88hbNqtY4y2u3J6razFC4735qmLjrTNtZdBxel9lo3pzoMvt5es-ksWny8z6eTRWRiwdsISpkkLOFcI-dC6BJyBBhTTkU-BsyLkgxiwYjnJaSCBEM9ZgVnqcEECxkPg8ej7t423x25Vu0qZ2i71TU1nVNSprHElI89ef-P3DSdrf1xKgVkCYsZeAiOkLGNc5ZKtbfVTtsfBUz11qreWtVbq07W-p2Hk7B2Rm9Lq2tTub9FhFQmgvfad0euIqK_sX9I7CP-BYsUgG8</recordid><startdate>20090601</startdate><enddate>20090601</enddate><creator>Cross, X.L.</creator><creator>Zheng, X.</creator><creator>Cunningham, P.D.</creator><creator>Hayden, L.M.</creator><creator>Chromik, S.</creator><creator>Sojkova, M.</creator><creator>Strbik, V.</creator><creator>Odier, P.</creator><creator>Sobolewski, R.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Electrical power engineering</topic><topic>Electromagnets</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Femtosecond</topic><topic>femtosecond pump-probe spectroscopy</topic><topic>General equipment and techniques</topic><topic>Hg-Ba-Ca-Cu-O compound</topic><topic>High temperature superconductors</topic><topic>IMPACT TESTS</topic><topic>Instruments, apparatus, components and techniques common to several branches of physics and astronomy</topic><topic>Optical films</topic><topic>Optical pulses</topic><topic>Optoelectronic devices</topic><topic>Physics</topic><topic>Precursors</topic><topic>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</topic><topic>Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing</topic><topic>Spectroscopy</topic><topic>Spectrum analysis</topic><topic>Superconducting devices</topic><topic>Superconducting films</topic><topic>Superconducting thin films</topic><topic>Superconducting transition temperature</topic><topic>SUPERCONDUCTIVITY</topic><topic>SUPERCONDUCTORS</topic><topic>THIN FILMS</topic><topic>THz time-domain spectroscopy</topic><topic>Time domain analysis</topic><topic>TRANSITION TEMPERATURE</topic><topic>Ultrafast optics</topic><topic>ultrafast superconducting photodetectors</topic><topic>Various equipment and components</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cross, X.L.</creatorcontrib><creatorcontrib>Zheng, X.</creatorcontrib><creatorcontrib>Cunningham, P.D.</creatorcontrib><creatorcontrib>Hayden, L.M.</creatorcontrib><creatorcontrib>Chromik, S.</creatorcontrib><creatorcontrib>Sojkova, M.</creatorcontrib><creatorcontrib>Strbik, V.</creatorcontrib><creatorcontrib>Odier, P.</creatorcontrib><creatorcontrib>Sobolewski, R.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><jtitle>IEEE transactions on applied superconductivity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Cross, X.L.</au><au>Zheng, X.</au><au>Cunningham, P.D.</au><au>Hayden, L.M.</au><au>Chromik, S.</au><au>Sojkova, M.</au><au>Strbik, V.</au><au>Odier, P.</au><au>Sobolewski, R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pulsed-THz Characterization of Hg-Based, High-Temperature Superconductors</atitle><jtitle>IEEE transactions on applied superconductivity</jtitle><stitle>TASC</stitle><date>2009-06-01</date><risdate>2009</risdate><volume>19</volume><issue>3</issue><spage>3614</spage><epage>3617</epage><pages>3614-3617</pages><issn>1051-8223</issn><eissn>1558-2515</eissn><coden>ITASE9</coden><abstract>We report on ultrafast THz-pulse time-domain spectroscopy (TDS) and femtosecond optical-pump THz-probe (OPTP) studies of Hg-Ba-Ca-Cu-O (HBCCO) high-temperature, superconducting thin films. Our 500-nm-thick films were prepared by rf-magnetron sputtering of Re-Ba-Ca-Cu-O precursor films, followed by an ex-situ , high-temperature mercuration process. The resulting films were c axis oriented with a predominant Hg-1212 (plus some Hg-1223) phase. Their transition temperature T c had an onset at 122 K and zero resistance at 110 K. The THz TDS measurements demonstrated a sharp drop in the transmitted THz signal when the sample temperature was decreased below T c , which we directly related to a change in the imaginary component of the film complex conductivity. Simultaneously, the peak of the temperature-dependent real part of the conductivity was shifted toward lower frequencies at lower temperatures. The time-resolved OPTP spectroscopy experiments showed that the quasiparticle relaxation process exhibited an intrinsic single-picosecond dynamics with no phonon bottleneck, which is a unique feature among superconductors and makes the HBCCO material promising for ultrafast radiation detector applications.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TASC.2009.2018122</doi><tpages>4</tpages></addata></record> |
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| subjects | Applied sciences Complex conductivity of superconductors Conductivity COPPER OXIDE ELECTRICAL CONDUCTIVITY Electrical engineering. Electrical power engineering Electromagnets Electronics Exact sciences and technology Femtosecond femtosecond pump-probe spectroscopy General equipment and techniques Hg-Ba-Ca-Cu-O compound High temperature superconductors IMPACT TESTS Instruments, apparatus, components and techniques common to several branches of physics and astronomy Optical films Optical pulses Optoelectronic devices Physics Precursors Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Spectroscopy Spectrum analysis Superconducting devices Superconducting films Superconducting thin films Superconducting transition temperature SUPERCONDUCTIVITY SUPERCONDUCTORS THIN FILMS THz time-domain spectroscopy Time domain analysis TRANSITION TEMPERATURE Ultrafast optics ultrafast superconducting photodetectors Various equipment and components |
| title | Pulsed-THz Characterization of Hg-Based, High-Temperature Superconductors |
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