Pressure-induced phase transitions of beta -type pyrochlore CsTaWO6
The beta -type pyrochlore CsTaWO6 was studied by synchrotron X-ray diffraction (XRD) and Raman scattering methods up to pressures of 43 GPa using a diamond anvil cell (DAC). With increasing pressure, the cubic pyrochlore in space group of Fd-3&cmb.macr; m transforms to an orthorhombic structure...
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| creator | Zhang, F X Tracy, CL Shamblin, J Palomares, R I Lang, M Park, S Park, C Tkachev, S Ewing, R C |
| description | The beta -type pyrochlore CsTaWO6 was studied by synchrotron X-ray diffraction (XRD) and Raman scattering methods up to pressures of 43 GPa using a diamond anvil cell (DAC). With increasing pressure, the cubic pyrochlore in space group of Fd-3&cmb.macr; m transforms to an orthorhombic structure (space group: Pnma) at 5.9 GPa and then to a monoclinic structure (space group: P21/c) at similar to 18 GPa. The structural evolution in CsTaWO6 is a continuous process and experimental results suggest that the initial cubic phase has a tetragonal distortion at ambient conditions. Both XRD and Raman measurements indicate that the pressure-induced phase transitions in CsTaWO6 are reversible. These results may provide a structural explanation of previous experimental resistivity measurement results for the isostructural superconductor K(Cs)Os2O6 at high pressure conditions. |
| doi_str_mv | 10.1039/c6ra11185h |
| format | Article |
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(ANL), Argonne, IL (United States). Advanced Photon Source (APS) ; Carnegie Institution of Washington, Washington, D.C. (United States) ; Univ. of Michigan, Ann Arbor, MI (United States)</creatorcontrib><description>The beta -type pyrochlore CsTaWO6 was studied by synchrotron X-ray diffraction (XRD) and Raman scattering methods up to pressures of 43 GPa using a diamond anvil cell (DAC). With increasing pressure, the cubic pyrochlore in space group of Fd-3&cmb.macr; m transforms to an orthorhombic structure (space group: Pnma) at 5.9 GPa and then to a monoclinic structure (space group: P21/c) at similar to 18 GPa. The structural evolution in CsTaWO6 is a continuous process and experimental results suggest that the initial cubic phase has a tetragonal distortion at ambient conditions. Both XRD and Raman measurements indicate that the pressure-induced phase transitions in CsTaWO6 are reversible. These results may provide a structural explanation of previous experimental resistivity measurement results for the isostructural superconductor K(Cs)Os2O6 at high pressure conditions.</description><identifier>ISSN: 2046-2069</identifier><identifier>EISSN: 2046-2069</identifier><identifier>DOI: 10.1039/c6ra11185h</identifier><language>eng</language><publisher>United States: Royal Society of Chemistry</publisher><subject>Diamond anvil cells ; Diffraction ; Distortion ; Evolution ; MATERIALS SCIENCE ; Phase transformations ; Pyrochlores ; Synchrotrons ; X-ray diffraction</subject><ispartof>RSC advances, 2016-01, Vol.6 (97), p.94287-94293</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1329475$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, F X</creatorcontrib><creatorcontrib>Tracy, CL</creatorcontrib><creatorcontrib>Shamblin, J</creatorcontrib><creatorcontrib>Palomares, R I</creatorcontrib><creatorcontrib>Lang, M</creatorcontrib><creatorcontrib>Park, S</creatorcontrib><creatorcontrib>Park, C</creatorcontrib><creatorcontrib>Tkachev, S</creatorcontrib><creatorcontrib>Ewing, R C</creatorcontrib><creatorcontrib>Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)</creatorcontrib><creatorcontrib>Carnegie Institution of Washington, Washington, D.C. (United States)</creatorcontrib><creatorcontrib>Univ. of Michigan, Ann Arbor, MI (United States)</creatorcontrib><title>Pressure-induced phase transitions of beta -type pyrochlore CsTaWO6</title><title>RSC advances</title><description>The beta -type pyrochlore CsTaWO6 was studied by synchrotron X-ray diffraction (XRD) and Raman scattering methods up to pressures of 43 GPa using a diamond anvil cell (DAC). With increasing pressure, the cubic pyrochlore in space group of Fd-3&cmb.macr; m transforms to an orthorhombic structure (space group: Pnma) at 5.9 GPa and then to a monoclinic structure (space group: P21/c) at similar to 18 GPa. The structural evolution in CsTaWO6 is a continuous process and experimental results suggest that the initial cubic phase has a tetragonal distortion at ambient conditions. Both XRD and Raman measurements indicate that the pressure-induced phase transitions in CsTaWO6 are reversible. These results may provide a structural explanation of previous experimental resistivity measurement results for the isostructural superconductor K(Cs)Os2O6 at high pressure conditions.</description><subject>Diamond anvil cells</subject><subject>Diffraction</subject><subject>Distortion</subject><subject>Evolution</subject><subject>MATERIALS SCIENCE</subject><subject>Phase transformations</subject><subject>Pyrochlores</subject><subject>Synchrotrons</subject><subject>X-ray diffraction</subject><issn>2046-2069</issn><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpNjs1KxDAYRYMoOOhsfILgyk01_9MspfgHA-NixGVJky-0UpuaL13M2zswLrybcxeHyyXkhrN7zqR98CY7znmt-zOyEkyZSjBjz__1S7JG_GLHGM2F4SvSvGdAXDJUwxQWD4HOvUOgJbsJhzKkCWmKtIPiaFUOM9D5kJPvx5SBNrh3nztzTS6iGxHWf7wiH89P--a12u5e3prHbZWE5qWqOys7o3wA5aLdROCSaR6cjS50JoA21hkOgdVKiSCM6o4PPUhuRQQRlbwit6fdhGVo0Q8FfO_TNIEvLZfCqo0-Sncnac7pZwEs7feAHsbRTZAWbHmtdM2kUlb-AvVCWn4</recordid><startdate>20160101</startdate><enddate>20160101</enddate><creator>Zhang, F X</creator><creator>Tracy, CL</creator><creator>Shamblin, J</creator><creator>Palomares, R I</creator><creator>Lang, M</creator><creator>Park, S</creator><creator>Park, C</creator><creator>Tkachev, S</creator><creator>Ewing, R C</creator><general>Royal Society of Chemistry</general><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>OIOZB</scope><scope>OTOTI</scope></search><sort><creationdate>20160101</creationdate><title>Pressure-induced phase transitions of beta -type pyrochlore CsTaWO6</title><author>Zhang, F X ; Tracy, CL ; Shamblin, J ; Palomares, R I ; Lang, M ; Park, S ; Park, C ; Tkachev, S ; Ewing, R C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-o251t-8b93b64cde4af97fe13051da9fadb6de569a61ed08442d264b261ce3192fe2f43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Diamond anvil cells</topic><topic>Diffraction</topic><topic>Distortion</topic><topic>Evolution</topic><topic>MATERIALS SCIENCE</topic><topic>Phase transformations</topic><topic>Pyrochlores</topic><topic>Synchrotrons</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, F X</creatorcontrib><creatorcontrib>Tracy, CL</creatorcontrib><creatorcontrib>Shamblin, J</creatorcontrib><creatorcontrib>Palomares, R I</creatorcontrib><creatorcontrib>Lang, M</creatorcontrib><creatorcontrib>Park, S</creatorcontrib><creatorcontrib>Park, C</creatorcontrib><creatorcontrib>Tkachev, S</creatorcontrib><creatorcontrib>Ewing, R C</creatorcontrib><creatorcontrib>Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)</creatorcontrib><creatorcontrib>Carnegie Institution of Washington, Washington, D.C. (United States)</creatorcontrib><creatorcontrib>Univ. of Michigan, Ann Arbor, MI (United States)</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>OSTI.GOV - Hybrid</collection><collection>OSTI.GOV</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, F X</au><au>Tracy, CL</au><au>Shamblin, J</au><au>Palomares, R I</au><au>Lang, M</au><au>Park, S</au><au>Park, C</au><au>Tkachev, S</au><au>Ewing, R C</au><aucorp>Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)</aucorp><aucorp>Carnegie Institution of Washington, Washington, D.C. (United States)</aucorp><aucorp>Univ. of Michigan, Ann Arbor, MI (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pressure-induced phase transitions of beta -type pyrochlore CsTaWO6</atitle><jtitle>RSC advances</jtitle><date>2016-01-01</date><risdate>2016</risdate><volume>6</volume><issue>97</issue><spage>94287</spage><epage>94293</epage><pages>94287-94293</pages><issn>2046-2069</issn><eissn>2046-2069</eissn><abstract>The beta -type pyrochlore CsTaWO6 was studied by synchrotron X-ray diffraction (XRD) and Raman scattering methods up to pressures of 43 GPa using a diamond anvil cell (DAC). With increasing pressure, the cubic pyrochlore in space group of Fd-3&cmb.macr; m transforms to an orthorhombic structure (space group: Pnma) at 5.9 GPa and then to a monoclinic structure (space group: P21/c) at similar to 18 GPa. The structural evolution in CsTaWO6 is a continuous process and experimental results suggest that the initial cubic phase has a tetragonal distortion at ambient conditions. Both XRD and Raman measurements indicate that the pressure-induced phase transitions in CsTaWO6 are reversible. These results may provide a structural explanation of previous experimental resistivity measurement results for the isostructural superconductor K(Cs)Os2O6 at high pressure conditions.</abstract><cop>United States</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/c6ra11185h</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | RSC advances, 2016-01, Vol.6 (97), p.94287-94293 |
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| language | eng |
| recordid | cdi_osti_scitechconnect_1329475 |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Diamond anvil cells Diffraction Distortion Evolution MATERIALS SCIENCE Phase transformations Pyrochlores Synchrotrons X-ray diffraction |
| title | Pressure-induced phase transitions of beta -type pyrochlore CsTaWO6 |
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