Raman spectroscopy of structural phase transitions in Ag26I18W4O16
Raman spectra of single crystals of silver iodide tetratungstate (Ag26I18W4O16) have been obtained as a function of temperature from 77 to 350 K. These data indicate the presence of structural phase transitions near 199 and 285 K. Dielectric and conductivity measurements perpendicular to the unique...
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| Veröffentlicht in: | The Journal of chemical physics 1978-12, Vol.69 (11), p.4984-4989 |
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| Sprache: | eng ; jpn |
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| container_end_page | 4989 |
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| container_issue | 11 |
| container_start_page | 4984 |
| container_title | The Journal of chemical physics |
| container_volume | 69 |
| creator | Habbal, F. Zvirgzds, J. A. Scott, J. F. |
| description | Raman spectra of single crystals of silver iodide tetratungstate (Ag26I18W4O16) have been obtained as a function of temperature from 77 to 350 K. These data indicate the presence of structural phase transitions near 199 and 285 K. Dielectric and conductivity measurements perpendicular to the unique twofold axis confirm the presence of these two transition temperatures. Plots of log (σT) versus 1/T reveal three distinct regions of linearity with activation energy 2.4 eV below 199 K; 0.07 eV between 199 and 285 K; and 0.42 eV above 285 K. |
| doi_str_mv | 10.1063/1.436487 |
| format | Article |
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Plots of log (σT) versus 1/T reveal three distinct regions of linearity with activation energy 2.4 eV below 199 K; 0.07 eV between 199 and 285 K; and 0.42 eV above 285 K.</description><identifier>ISSN: 0021-9606</identifier><identifier>EISSN: 1089-7690</identifier><identifier>DOI: 10.1063/1.436487</identifier><language>eng ; jpn</language><ispartof>The Journal of chemical physics, 1978-12, Vol.69 (11), p.4984-4989</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1386-6e558c1b8501453cf688cc5da268bc97483c664821e8a63de17a5a9c2779fcd53</citedby><cites>FETCH-LOGICAL-c1386-6e558c1b8501453cf688cc5da268bc97483c664821e8a63de17a5a9c2779fcd53</cites></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>Habbal, F.</creatorcontrib><creatorcontrib>Zvirgzds, J. A.</creatorcontrib><creatorcontrib>Scott, J. F.</creatorcontrib><title>Raman spectroscopy of structural phase transitions in Ag26I18W4O16</title><title>The Journal of chemical physics</title><description>Raman spectra of single crystals of silver iodide tetratungstate (Ag26I18W4O16) have been obtained as a function of temperature from 77 to 350 K. These data indicate the presence of structural phase transitions near 199 and 285 K. Dielectric and conductivity measurements perpendicular to the unique twofold axis confirm the presence of these two transition temperatures. Plots of log (σT) versus 1/T reveal three distinct regions of linearity with activation energy 2.4 eV below 199 K; 0.07 eV between 199 and 285 K; and 0.42 eV above 285 K.</description><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1978</creationdate><recordtype>article</recordtype><recordid>eNotj01Lw0AUABdRsFbBn7BHL6nv7cfbzbEWrYVCQRSPYfuy0UibhN300H9vpZ7mNswIcY8wQyD9iDOjyXh3ISYIviwclXApJgAKi5KArsVNzj8AgE6ZiXh6C_vQyTxEHlOfuR-Osm9kHtOBx0MKOzl8hxzlmEKX27HtuyzbTs6_FK3Qf5oN0q24asIux7t_TsXHy_P74rVYb5arxXxdMGpPBUVrPePWW0BjNTfkPbOtgyK_5dIZr5lO5QqjD6TriC7YULJyrmy4tnoqHs5ePoXmFJtqSO0-pGOFUP29V1id3_UviC9J2Q</recordid><startdate>19781201</startdate><enddate>19781201</enddate><creator>Habbal, F.</creator><creator>Zvirgzds, J. A.</creator><creator>Scott, J. 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F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Raman spectroscopy of structural phase transitions in Ag26I18W4O16</atitle><jtitle>The Journal of chemical physics</jtitle><date>1978-12-01</date><risdate>1978</risdate><volume>69</volume><issue>11</issue><spage>4984</spage><epage>4989</epage><pages>4984-4989</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><abstract>Raman spectra of single crystals of silver iodide tetratungstate (Ag26I18W4O16) have been obtained as a function of temperature from 77 to 350 K. These data indicate the presence of structural phase transitions near 199 and 285 K. Dielectric and conductivity measurements perpendicular to the unique twofold axis confirm the presence of these two transition temperatures. Plots of log (σT) versus 1/T reveal three distinct regions of linearity with activation energy 2.4 eV below 199 K; 0.07 eV between 199 and 285 K; and 0.42 eV above 285 K.</abstract><doi>10.1063/1.436487</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-9606 |
| ispartof | The Journal of chemical physics, 1978-12, Vol.69 (11), p.4984-4989 |
| issn | 0021-9606 1089-7690 |
| language | eng ; jpn |
| recordid | cdi_crossref_primary_10_1063_1_436487 |
| source | AIP Digital Archive |
| title | Raman spectroscopy of structural phase transitions in Ag26I18W4O16 |
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