Pressure-induced structural transitions in Tb-pyrochlore oxides
The structure of Tb 2 Ti 2 O 7 , Tb 2 Sn 2 O 7 , and Tb 2 TiSnO 7 were studied at high pressures ( P < 1 Mbar ) using synchrotron radiation and angular dispersive x-ray diffraction. The cubic lattice was shown to distort into a monoclinic phase before exhibiting total structural disorder (amorphi...
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| Veröffentlicht in: | Applied physics letters 2006-01, Vol.88 (3), p.031903-031903-3 |
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| container_title | Applied physics letters |
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| creator | Kumar, Ravhi S. Cornelius, Andrew L. Nicol, Malcolm F. Kam, Kinson C. Cheetham, Anthony K. Gardner, Jason S. |
| description | The structure of
Tb
2
Ti
2
O
7
,
Tb
2
Sn
2
O
7
, and
Tb
2
TiSnO
7
were studied at high pressures
(
P
<
1
Mbar
)
using synchrotron radiation and angular dispersive x-ray diffraction. The cubic lattice was shown to distort into a monoclinic phase before exhibiting total structural disorder (amorphization) in all three samples. Our experiments demonstrate that partial replacement of Sn with Ti significantly enhances the bulk modulus and increases the structural stability (crystalline state) to much higher pressures. Furthermore, pressure induces anion before cation disorder during the order-disorder transition. These results are compared to radiation damage studies that show order-disorder transitions. |
| doi_str_mv | 10.1063/1.2165212 |
| format | Article |
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Tb
2
Ti
2
O
7
,
Tb
2
Sn
2
O
7
, and
Tb
2
TiSnO
7
were studied at high pressures
(
P
<
1
Mbar
)
using synchrotron radiation and angular dispersive x-ray diffraction. The cubic lattice was shown to distort into a monoclinic phase before exhibiting total structural disorder (amorphization) in all three samples. Our experiments demonstrate that partial replacement of Sn with Ti significantly enhances the bulk modulus and increases the structural stability (crystalline state) to much higher pressures. Furthermore, pressure induces anion before cation disorder during the order-disorder transition. These results are compared to radiation damage studies that show order-disorder transitions.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.2165212</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>American Institute of Physics</publisher><ispartof>Applied physics letters, 2006-01, Vol.88 (3), p.031903-031903-3</ispartof><rights>2006 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c284t-279fc3581e2b6239c12c528e114b67f3fa7403087a34d3bacfd429feeb72842c3</citedby><cites>FETCH-LOGICAL-c284t-279fc3581e2b6239c12c528e114b67f3fa7403087a34d3bacfd429feeb72842c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/apl/article-lookup/doi/10.1063/1.2165212$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,780,784,794,1559,4512,27924,27925,76384,76390</link.rule.ids></links><search><creatorcontrib>Kumar, Ravhi S.</creatorcontrib><creatorcontrib>Cornelius, Andrew L.</creatorcontrib><creatorcontrib>Nicol, Malcolm F.</creatorcontrib><creatorcontrib>Kam, Kinson C.</creatorcontrib><creatorcontrib>Cheetham, Anthony K.</creatorcontrib><creatorcontrib>Gardner, Jason S.</creatorcontrib><title>Pressure-induced structural transitions in Tb-pyrochlore oxides</title><title>Applied physics letters</title><description>The structure of
Tb
2
Ti
2
O
7
,
Tb
2
Sn
2
O
7
, and
Tb
2
TiSnO
7
were studied at high pressures
(
P
<
1
Mbar
)
using synchrotron radiation and angular dispersive x-ray diffraction. The cubic lattice was shown to distort into a monoclinic phase before exhibiting total structural disorder (amorphization) in all three samples. Our experiments demonstrate that partial replacement of Sn with Ti significantly enhances the bulk modulus and increases the structural stability (crystalline state) to much higher pressures. Furthermore, pressure induces anion before cation disorder during the order-disorder transition. These results are compared to radiation damage studies that show order-disorder transitions.</description><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp1j01LxDAURYMoWEcX_oNuXWTMe69t2o0ig18woItxHdI0wUhthyQF59_bYcalq8eFcy_vMHYNYgmioltYIlQlAp6wDISUnADqU5YJIYhXTQnn7CLGrzmWSJSx-_dgY5yC5X7oJmO7PKYwmTQF3ecp6CH65Mch5n7INy3f7sJoPvsx2Hz88Z2Nl-zM6T7aq-NdsI-nx83qha_fnl9XD2tusC4SR9k4Q2UNFtsKqTGApsTaAhRtJR05LQtBopaaio5abVxXYOOsbeXcR0MLdnPYNWGMMVintsF_67BTINTeXIE6ms_s3YGNxie9f_9_-E9fHfXVrE-_7O9g_A</recordid><startdate>20060116</startdate><enddate>20060116</enddate><creator>Kumar, Ravhi S.</creator><creator>Cornelius, Andrew L.</creator><creator>Nicol, Malcolm F.</creator><creator>Kam, Kinson C.</creator><creator>Cheetham, Anthony K.</creator><creator>Gardner, Jason S.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20060116</creationdate><title>Pressure-induced structural transitions in Tb-pyrochlore oxides</title><author>Kumar, Ravhi S. ; Cornelius, Andrew L. ; Nicol, Malcolm F. ; Kam, Kinson C. ; Cheetham, Anthony K. ; Gardner, Jason S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c284t-279fc3581e2b6239c12c528e114b67f3fa7403087a34d3bacfd429feeb72842c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kumar, Ravhi S.</creatorcontrib><creatorcontrib>Cornelius, Andrew L.</creatorcontrib><creatorcontrib>Nicol, Malcolm F.</creatorcontrib><creatorcontrib>Kam, Kinson C.</creatorcontrib><creatorcontrib>Cheetham, Anthony K.</creatorcontrib><creatorcontrib>Gardner, Jason S.</creatorcontrib><collection>CrossRef</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kumar, Ravhi S.</au><au>Cornelius, Andrew L.</au><au>Nicol, Malcolm F.</au><au>Kam, Kinson C.</au><au>Cheetham, Anthony K.</au><au>Gardner, Jason S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pressure-induced structural transitions in Tb-pyrochlore oxides</atitle><jtitle>Applied physics letters</jtitle><date>2006-01-16</date><risdate>2006</risdate><volume>88</volume><issue>3</issue><spage>031903</spage><epage>031903-3</epage><pages>031903-031903-3</pages><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>The structure of
Tb
2
Ti
2
O
7
,
Tb
2
Sn
2
O
7
, and
Tb
2
TiSnO
7
were studied at high pressures
(
P
<
1
Mbar
)
using synchrotron radiation and angular dispersive x-ray diffraction. The cubic lattice was shown to distort into a monoclinic phase before exhibiting total structural disorder (amorphization) in all three samples. Our experiments demonstrate that partial replacement of Sn with Ti significantly enhances the bulk modulus and increases the structural stability (crystalline state) to much higher pressures. Furthermore, pressure induces anion before cation disorder during the order-disorder transition. These results are compared to radiation damage studies that show order-disorder transitions.</abstract><pub>American Institute of Physics</pub><doi>10.1063/1.2165212</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 2006-01, Vol.88 (3), p.031903-031903-3 |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_2165212 |
| source | AIP Journals Complete; AIP Digital Archive |
| title | Pressure-induced structural transitions in Tb-pyrochlore oxides |
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