The effects of long-term annealing on superconducting properties in the Bi-Sr-Ca-Cu-O system
The effect of long-term annealing on the relative proportions of the low- and high-Tc phases present in the Bi-Sr-Ca-Cu-O system was examined by resistivity and ac susceptibility measurements. The zero-resistivity offset was found to increase from 50 to 68 K and the susceptibility measurements showe...
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| Veröffentlicht in: | J. Appl. Phys.; (United States) 1989-03, Vol.65 (6), p.2392-2397 |
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| creator | SARKAR, A. K KUMAR, B MAARTENSE, I PETERSON, T. L |
| description | The effect of long-term annealing on the relative proportions of the low- and high-Tc phases present in the Bi-Sr-Ca-Cu-O system was examined by resistivity and ac susceptibility measurements. The zero-resistivity offset was found to increase from 50 to 68 K and the susceptibility measurements showed the disappearance of the low-Tc , 63-K phase with the enrichment of the high-Tc , 110-K phase as a result of the annealing treatment. Also, the onset of diamagnetism of the high-Tc phase was enhanced by 3 K due to prolonged annealing. The high-Tc phase thus formed is poorly crystallized as determined by the x-ray diffraction patterns. Some impurities are observed in both x-ray diffraction patterns and scanning electron microscopy pictures and are assigned to the low-Tc , Sr, and Bi-doped Ca2CuO3 phases. This study shows that a complex ac susceptibility measurement technique can be a very powerful tool for studying the equilibrium superconducting phases present at a particular temperature in a multicomponent system such as Bi-Sr-Ca-Cu-O. |
| doi_str_mv | 10.1063/1.342806 |
| format | Article |
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K ; KUMAR, B ; MAARTENSE, I ; PETERSON, T. L</creator><creatorcontrib>SARKAR, A. K ; KUMAR, B ; MAARTENSE, I ; PETERSON, T. L ; University of Dayton Research Institute, Dayton, Ohio 45469</creatorcontrib><description>The effect of long-term annealing on the relative proportions of the low- and high-Tc phases present in the Bi-Sr-Ca-Cu-O system was examined by resistivity and ac susceptibility measurements. The zero-resistivity offset was found to increase from 50 to 68 K and the susceptibility measurements showed the disappearance of the low-Tc , 63-K phase with the enrichment of the high-Tc , 110-K phase as a result of the annealing treatment. Also, the onset of diamagnetism of the high-Tc phase was enhanced by 3 K due to prolonged annealing. The high-Tc phase thus formed is poorly crystallized as determined by the x-ray diffraction patterns. Some impurities are observed in both x-ray diffraction patterns and scanning electron microscopy pictures and are assigned to the low-Tc , Sr, and Bi-doped Ca2CuO3 phases. This study shows that a complex ac susceptibility measurement technique can be a very powerful tool for studying the equilibrium superconducting phases present at a particular temperature in a multicomponent system such as Bi-Sr-Ca-Cu-O.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.342806</identifier><identifier>CODEN: JAPIAU</identifier><language>eng</language><publisher>Woodbury, NY: American Institute of Physics</publisher><subject>360204 - Ceramics, Cermets, & Refractories- Physical Properties ; 656100 - Condensed Matter Physics- Superconductivity ; ALKALINE EARTH METAL COMPOUNDS ; ANNEALING ; BISMUTH COMPOUNDS ; BISMUTH OXIDES ; CALCIUM COMPOUNDS ; CALCIUM OXIDES ; CHALCOGENIDES ; COHERENT SCATTERING ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; COPPER COMPOUNDS ; COPPER OXIDES ; DIAMAGNETISM ; DIFFRACTION ; ELECTRIC CONDUCTIVITY ; ELECTRICAL PROPERTIES ; ELECTRON MICROSCOPY ; Exact sciences and technology ; HEAT TREATMENTS ; LOW TEMPERATURE ; MAGNETIC PROPERTIES ; MAGNETIC SUSCEPTIBILITY ; MAGNETISM ; MATERIALS SCIENCE ; MICROSCOPY ; OXIDES ; OXYGEN COMPOUNDS ; PHYSICAL PROPERTIES ; Physics ; Properties of type I and type II superconductors ; SCANNING ELECTRON MICROSCOPY ; SCATTERING ; STRONTIUM COMPOUNDS ; STRONTIUM OXIDES ; SUPERCONDUCTIVITY ; TRANSITION ELEMENT COMPOUNDS ; ULTRALOW TEMPERATURE ; VERY LOW TEMPERATURE ; X-RAY DIFFRACTION</subject><ispartof>J. 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K</creatorcontrib><creatorcontrib>KUMAR, B</creatorcontrib><creatorcontrib>MAARTENSE, I</creatorcontrib><creatorcontrib>PETERSON, T. L</creatorcontrib><creatorcontrib>University of Dayton Research Institute, Dayton, Ohio 45469</creatorcontrib><title>The effects of long-term annealing on superconducting properties in the Bi-Sr-Ca-Cu-O system</title><title>J. Appl. Phys.; (United States)</title><description>The effect of long-term annealing on the relative proportions of the low- and high-Tc phases present in the Bi-Sr-Ca-Cu-O system was examined by resistivity and ac susceptibility measurements. The zero-resistivity offset was found to increase from 50 to 68 K and the susceptibility measurements showed the disappearance of the low-Tc , 63-K phase with the enrichment of the high-Tc , 110-K phase as a result of the annealing treatment. Also, the onset of diamagnetism of the high-Tc phase was enhanced by 3 K due to prolonged annealing. The high-Tc phase thus formed is poorly crystallized as determined by the x-ray diffraction patterns. Some impurities are observed in both x-ray diffraction patterns and scanning electron microscopy pictures and are assigned to the low-Tc , Sr, and Bi-doped Ca2CuO3 phases. This study shows that a complex ac susceptibility measurement technique can be a very powerful tool for studying the equilibrium superconducting phases present at a particular temperature in a multicomponent system such as Bi-Sr-Ca-Cu-O.</description><subject>360204 - Ceramics, Cermets, & Refractories- Physical Properties</subject><subject>656100 - Condensed Matter Physics- Superconductivity</subject><subject>ALKALINE EARTH METAL COMPOUNDS</subject><subject>ANNEALING</subject><subject>BISMUTH COMPOUNDS</subject><subject>BISMUTH OXIDES</subject><subject>CALCIUM COMPOUNDS</subject><subject>CALCIUM OXIDES</subject><subject>CHALCOGENIDES</subject><subject>COHERENT SCATTERING</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>COPPER COMPOUNDS</subject><subject>COPPER OXIDES</subject><subject>DIAMAGNETISM</subject><subject>DIFFRACTION</subject><subject>ELECTRIC CONDUCTIVITY</subject><subject>ELECTRICAL PROPERTIES</subject><subject>ELECTRON MICROSCOPY</subject><subject>Exact sciences and technology</subject><subject>HEAT TREATMENTS</subject><subject>LOW TEMPERATURE</subject><subject>MAGNETIC PROPERTIES</subject><subject>MAGNETIC SUSCEPTIBILITY</subject><subject>MAGNETISM</subject><subject>MATERIALS SCIENCE</subject><subject>MICROSCOPY</subject><subject>OXIDES</subject><subject>OXYGEN COMPOUNDS</subject><subject>PHYSICAL PROPERTIES</subject><subject>Physics</subject><subject>Properties of type I and type II superconductors</subject><subject>SCANNING ELECTRON MICROSCOPY</subject><subject>SCATTERING</subject><subject>STRONTIUM COMPOUNDS</subject><subject>STRONTIUM OXIDES</subject><subject>SUPERCONDUCTIVITY</subject><subject>TRANSITION ELEMENT COMPOUNDS</subject><subject>ULTRALOW TEMPERATURE</subject><subject>VERY LOW TEMPERATURE</subject><subject>X-RAY DIFFRACTION</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNqNkUFLHTEUhYO00Fdb6E8IpYib2NxJJpks9aFVEFzU7gohk0k0Mi_zzM0s_PeNPOna1YXDx-Gcewj5BvwMuBI_4UzIbuDqiGyAD4bpvucfyIbzDthgtPlEPiM-cQ4wCLMhf-8fAw0xBl-RLpHOS35gNZQddTkHN6f8QJdMcd2H4pc8rb6-SvuyNKGmgDRlWpvHRWK_C9s6tl3ZHcUXrGH3hXyMbsbw9e0ekz9Xl_fba3Z79-tme37LvARemZ-MBBn7vhsn54zSCoTWI8hBjRxir4OHMYCOwgilRjBTFELLMerJDbHrxTH5fvBdsCaLPtXgH1va3FpZJQfQvWjQyQFq2Z_XgNXuEvowzy6HZUXbtUcppeFdoOhM9w6wAym1buDpAfRlQSwh2n1JO1deLHD7upoFe1itoT_ePB16N8fisk_4n1emdQEu_gEp6ZQf</recordid><startdate>19890315</startdate><enddate>19890315</enddate><creator>SARKAR, A. 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L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c410t-cd9414f552bdaa96761377b1486b01f57ec1be17f39366b19df3374bf7da8f253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>360204 - Ceramics, Cermets, & Refractories- Physical Properties</topic><topic>656100 - Condensed Matter Physics- Superconductivity</topic><topic>ALKALINE EARTH METAL COMPOUNDS</topic><topic>ANNEALING</topic><topic>BISMUTH COMPOUNDS</topic><topic>BISMUTH OXIDES</topic><topic>CALCIUM COMPOUNDS</topic><topic>CALCIUM OXIDES</topic><topic>CHALCOGENIDES</topic><topic>COHERENT SCATTERING</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>COPPER COMPOUNDS</topic><topic>COPPER OXIDES</topic><topic>DIAMAGNETISM</topic><topic>DIFFRACTION</topic><topic>ELECTRIC CONDUCTIVITY</topic><topic>ELECTRICAL PROPERTIES</topic><topic>ELECTRON MICROSCOPY</topic><topic>Exact sciences and technology</topic><topic>HEAT TREATMENTS</topic><topic>LOW TEMPERATURE</topic><topic>MAGNETIC PROPERTIES</topic><topic>MAGNETIC SUSCEPTIBILITY</topic><topic>MAGNETISM</topic><topic>MATERIALS SCIENCE</topic><topic>MICROSCOPY</topic><topic>OXIDES</topic><topic>OXYGEN COMPOUNDS</topic><topic>PHYSICAL PROPERTIES</topic><topic>Physics</topic><topic>Properties of type I and type II superconductors</topic><topic>SCANNING ELECTRON MICROSCOPY</topic><topic>SCATTERING</topic><topic>STRONTIUM COMPOUNDS</topic><topic>STRONTIUM OXIDES</topic><topic>SUPERCONDUCTIVITY</topic><topic>TRANSITION ELEMENT COMPOUNDS</topic><topic>ULTRALOW TEMPERATURE</topic><topic>VERY LOW TEMPERATURE</topic><topic>X-RAY DIFFRACTION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>SARKAR, A. K</creatorcontrib><creatorcontrib>KUMAR, B</creatorcontrib><creatorcontrib>MAARTENSE, I</creatorcontrib><creatorcontrib>PETERSON, T. L</creatorcontrib><creatorcontrib>University of Dayton Research Institute, Dayton, Ohio 45469</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>OSTI.GOV</collection><jtitle>J. Appl. Phys.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SARKAR, A. K</au><au>KUMAR, B</au><au>MAARTENSE, I</au><au>PETERSON, T. L</au><aucorp>University of Dayton Research Institute, Dayton, Ohio 45469</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The effects of long-term annealing on superconducting properties in the Bi-Sr-Ca-Cu-O system</atitle><jtitle>J. Appl. Phys.; (United States)</jtitle><date>1989-03-15</date><risdate>1989</risdate><volume>65</volume><issue>6</issue><spage>2392</spage><epage>2397</epage><pages>2392-2397</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>The effect of long-term annealing on the relative proportions of the low- and high-Tc phases present in the Bi-Sr-Ca-Cu-O system was examined by resistivity and ac susceptibility measurements. The zero-resistivity offset was found to increase from 50 to 68 K and the susceptibility measurements showed the disappearance of the low-Tc , 63-K phase with the enrichment of the high-Tc , 110-K phase as a result of the annealing treatment. Also, the onset of diamagnetism of the high-Tc phase was enhanced by 3 K due to prolonged annealing. The high-Tc phase thus formed is poorly crystallized as determined by the x-ray diffraction patterns. Some impurities are observed in both x-ray diffraction patterns and scanning electron microscopy pictures and are assigned to the low-Tc , Sr, and Bi-doped Ca2CuO3 phases. This study shows that a complex ac susceptibility measurement technique can be a very powerful tool for studying the equilibrium superconducting phases present at a particular temperature in a multicomponent system such as Bi-Sr-Ca-Cu-O.</abstract><cop>Woodbury, NY</cop><pub>American Institute of Physics</pub><doi>10.1063/1.342806</doi><tpages>6</tpages></addata></record> |
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| ispartof | J. Appl. Phys.; (United States), 1989-03, Vol.65 (6), p.2392-2397 |
| issn | 0021-8979 1089-7550 |
| language | eng |
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| source | AIP Digital Archive |
| subjects | 360204 - Ceramics, Cermets, & Refractories- Physical Properties 656100 - Condensed Matter Physics- Superconductivity ALKALINE EARTH METAL COMPOUNDS ANNEALING BISMUTH COMPOUNDS BISMUTH OXIDES CALCIUM COMPOUNDS CALCIUM OXIDES CHALCOGENIDES COHERENT SCATTERING CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Condensed matter: electronic structure, electrical, magnetic, and optical properties COPPER COMPOUNDS COPPER OXIDES DIAMAGNETISM DIFFRACTION ELECTRIC CONDUCTIVITY ELECTRICAL PROPERTIES ELECTRON MICROSCOPY Exact sciences and technology HEAT TREATMENTS LOW TEMPERATURE MAGNETIC PROPERTIES MAGNETIC SUSCEPTIBILITY MAGNETISM MATERIALS SCIENCE MICROSCOPY OXIDES OXYGEN COMPOUNDS PHYSICAL PROPERTIES Physics Properties of type I and type II superconductors SCANNING ELECTRON MICROSCOPY SCATTERING STRONTIUM COMPOUNDS STRONTIUM OXIDES SUPERCONDUCTIVITY TRANSITION ELEMENT COMPOUNDS ULTRALOW TEMPERATURE VERY LOW TEMPERATURE X-RAY DIFFRACTION |
| title | The effects of long-term annealing on superconducting properties in the Bi-Sr-Ca-Cu-O system |
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