Pressure-induced structural transformations in In sub(2-x)Y sub(x)(MoO sub(4)) sub(3) systems
In this work, we report results of high-pressure Raman experiments (P
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| Veröffentlicht in: | Journal of Raman spectroscopy 2016-03, Vol.47 (3), p.350-356 |
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| container_title | Journal of Raman spectroscopy |
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| creator | Mendonca, R Paraguassu, W Mendes Filho, J Marinkovic, BA Souza Filho, AG Maczka, M Freire, PTC |
| description | In this work, we report results of high-pressure Raman experiments (P |
| doi_str_mv | 10.1002/jrs.4814 |
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A crystalline to crystalline structural phase transition and pressure-induced amorphization (PIA) have been identified. The structural phase transition takes place at 1.5 and 1.0GPa for In sub(2)(MoO sub(4)) sub(3 ) and In sub(1.5)Y sub(0.5)(MoO sub(4)) sub(3), respectively, resulting in the change of structure from monoclinic P2 sub(1)/a to a more denser structure. The PIA started at 5 and 3.4GPa for In sub(2)Mo sub(3)O sub(12) and In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12), respectively. The amorphization process takes place in two stages in the case of In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12) phase, while for In sub(2)Mo sub(3)O sub(12), it is not complete until the pressure is as high as 7GPa. Our results also suggest that with increase of ionic size of the A super(3+) ions, the octahedral distortion increases and consequently larger local structural disorder is introduced in the A sub(2)(MoO sub(4)) sub(3) system, where A is a trivalent ion (In, Y super(3+), Sc super(3+), Fe super(3+), etc.). High-pressure Raman experiments on In sub(2-x)Y sub(x)Mo sub(3 )O sub(12) reveal a crystalline to crystalline structural phase transition at low-pressure values and a pressure-induced amorphization at higher pressures. The first transformation leads the structure from monoclinic P2 sub(1)/a to a more denser structure. The amorphization process takes place in two stages for In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12), while for In sub(2)Mo sub(3)O sub(12), it is not complete until the pressure is as high as 7GPa. With increase of ionic size of the trivalent cation, the octahedral distortion increases.</description><identifier>ISSN: 0377-0486</identifier><identifier>EISSN: 1097-4555</identifier><identifier>DOI: 10.1002/jrs.4814</identifier><language>eng</language><subject>Amorphization ; Cations ; Crystal structure ; Disorders ; Distortion ; Phase transformations ; Raman spectroscopy ; Transformations</subject><ispartof>Journal of Raman spectroscopy, 2016-03, Vol.47 (3), p.350-356</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Mendonca, R</creatorcontrib><creatorcontrib>Paraguassu, W</creatorcontrib><creatorcontrib>Mendes Filho, J</creatorcontrib><creatorcontrib>Marinkovic, BA</creatorcontrib><creatorcontrib>Souza Filho, AG</creatorcontrib><creatorcontrib>Maczka, M</creatorcontrib><creatorcontrib>Freire, PTC</creatorcontrib><title>Pressure-induced structural transformations in In sub(2-x)Y sub(x)(MoO sub(4)) sub(3) systems</title><title>Journal of Raman spectroscopy</title><description>In this work, we report results of high-pressure Raman experiments (P<8GPa) on In sub(2-x)Y sub(x)Mo sub(3 )O sub(12) for x=0.0 and 0.5. A crystalline to crystalline structural phase transition and pressure-induced amorphization (PIA) have been identified. The structural phase transition takes place at 1.5 and 1.0GPa for In sub(2)(MoO sub(4)) sub(3 ) and In sub(1.5)Y sub(0.5)(MoO sub(4)) sub(3), respectively, resulting in the change of structure from monoclinic P2 sub(1)/a to a more denser structure. The PIA started at 5 and 3.4GPa for In sub(2)Mo sub(3)O sub(12) and In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12), respectively. The amorphization process takes place in two stages in the case of In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12) phase, while for In sub(2)Mo sub(3)O sub(12), it is not complete until the pressure is as high as 7GPa. Our results also suggest that with increase of ionic size of the A super(3+) ions, the octahedral distortion increases and consequently larger local structural disorder is introduced in the A sub(2)(MoO sub(4)) sub(3) system, where A is a trivalent ion (In, Y super(3+), Sc super(3+), Fe super(3+), etc.). High-pressure Raman experiments on In sub(2-x)Y sub(x)Mo sub(3 )O sub(12) reveal a crystalline to crystalline structural phase transition at low-pressure values and a pressure-induced amorphization at higher pressures. The first transformation leads the structure from monoclinic P2 sub(1)/a to a more denser structure. The amorphization process takes place in two stages for In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12), while for In sub(2)Mo sub(3)O sub(12), it is not complete until the pressure is as high as 7GPa. With increase of ionic size of the trivalent cation, the octahedral distortion increases.</description><subject>Amorphization</subject><subject>Cations</subject><subject>Crystal structure</subject><subject>Disorders</subject><subject>Distortion</subject><subject>Phase transformations</subject><subject>Raman spectroscopy</subject><subject>Transformations</subject><issn>0377-0486</issn><issn>1097-4555</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqVykFrwjAYgOEgE-xU8Cfk2B6iX2zapOexMQ9jHrx4EIltCi1t4vIl4P79Rtkf2Ol5Dy8hGw5bDrDf9R63QnExIwmHSjJRFMUTSSCXkoFQ5YI8I_YAUFUlT8jl6A1i9IZ1tom1aSgGH-sQvR5o8Npi6_yoQ-cs0s7Sg6UYb-mePbLzVI8s_XCfU4osm8x_-cZgRlyReasHNOs_lyR9ez29vLO7d1_RYLiOHdZmGLQ1LuKVKwAhKyVV_o_1BxlaS1E</recordid><startdate>20160301</startdate><enddate>20160301</enddate><creator>Mendonca, R</creator><creator>Paraguassu, W</creator><creator>Mendes Filho, J</creator><creator>Marinkovic, BA</creator><creator>Souza Filho, AG</creator><creator>Maczka, M</creator><creator>Freire, PTC</creator><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20160301</creationdate><title>Pressure-induced structural transformations in In sub(2-x)Y sub(x)(MoO sub(4)) sub(3) systems</title><author>Mendonca, R ; Paraguassu, W ; Mendes Filho, J ; Marinkovic, BA ; Souza Filho, AG ; Maczka, M ; Freire, PTC</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_18004798783</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Amorphization</topic><topic>Cations</topic><topic>Crystal structure</topic><topic>Disorders</topic><topic>Distortion</topic><topic>Phase transformations</topic><topic>Raman spectroscopy</topic><topic>Transformations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mendonca, R</creatorcontrib><creatorcontrib>Paraguassu, W</creatorcontrib><creatorcontrib>Mendes Filho, J</creatorcontrib><creatorcontrib>Marinkovic, BA</creatorcontrib><creatorcontrib>Souza Filho, AG</creatorcontrib><creatorcontrib>Maczka, M</creatorcontrib><creatorcontrib>Freire, PTC</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of Raman spectroscopy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mendonca, R</au><au>Paraguassu, W</au><au>Mendes Filho, J</au><au>Marinkovic, BA</au><au>Souza Filho, AG</au><au>Maczka, M</au><au>Freire, PTC</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pressure-induced structural transformations in In sub(2-x)Y sub(x)(MoO sub(4)) sub(3) systems</atitle><jtitle>Journal of Raman spectroscopy</jtitle><date>2016-03-01</date><risdate>2016</risdate><volume>47</volume><issue>3</issue><spage>350</spage><epage>356</epage><pages>350-356</pages><issn>0377-0486</issn><eissn>1097-4555</eissn><abstract>In this work, we report results of high-pressure Raman experiments (P<8GPa) on In sub(2-x)Y sub(x)Mo sub(3 )O sub(12) for x=0.0 and 0.5. A crystalline to crystalline structural phase transition and pressure-induced amorphization (PIA) have been identified. The structural phase transition takes place at 1.5 and 1.0GPa for In sub(2)(MoO sub(4)) sub(3 ) and In sub(1.5)Y sub(0.5)(MoO sub(4)) sub(3), respectively, resulting in the change of structure from monoclinic P2 sub(1)/a to a more denser structure. The PIA started at 5 and 3.4GPa for In sub(2)Mo sub(3)O sub(12) and In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12), respectively. The amorphization process takes place in two stages in the case of In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12) phase, while for In sub(2)Mo sub(3)O sub(12), it is not complete until the pressure is as high as 7GPa. Our results also suggest that with increase of ionic size of the A super(3+) ions, the octahedral distortion increases and consequently larger local structural disorder is introduced in the A sub(2)(MoO sub(4)) sub(3) system, where A is a trivalent ion (In, Y super(3+), Sc super(3+), Fe super(3+), etc.). High-pressure Raman experiments on In sub(2-x)Y sub(x)Mo sub(3 )O sub(12) reveal a crystalline to crystalline structural phase transition at low-pressure values and a pressure-induced amorphization at higher pressures. The first transformation leads the structure from monoclinic P2 sub(1)/a to a more denser structure. The amorphization process takes place in two stages for In sub(1.5)Y sub(0.5)Mo sub(3)O sub(12), while for In sub(2)Mo sub(3)O sub(12), it is not complete until the pressure is as high as 7GPa. With increase of ionic size of the trivalent cation, the octahedral distortion increases.</abstract><doi>10.1002/jrs.4814</doi></addata></record> |
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| subjects | Amorphization Cations Crystal structure Disorders Distortion Phase transformations Raman spectroscopy Transformations |
| title | Pressure-induced structural transformations in In sub(2-x)Y sub(x)(MoO sub(4)) sub(3) systems |
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