Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals
Strontium titanate SrTiO3 (STO) is a canonical example of a quantum paraelectric, and its doping with manganese ions unlocks its potential as a quantum multiferroic candidate. However, to date, the specifics of incorporation of the manganese ion into the perovskite lattice and its impact on structur...
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| Veröffentlicht in: | The journal of physical chemistry letters 2022-12, Vol.13 (50), p.11720-11728 |
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| creator | Talanov, Mikhail V. Stash, Adam I. Ivanov, Sergey A. Zhukova, Elena S. Gorshunov, Boris P. Nekrasov, Boris M. Stolyarov, Vasily S. Kozlov, Vladislav I. Savinov, Maxim Bush, Alexander A. |
| description | Strontium titanate SrTiO3 (STO) is a canonical example of a quantum paraelectric, and its doping with manganese ions unlocks its potential as a quantum multiferroic candidate. However, to date, the specifics of incorporation of the manganese ion into the perovskite lattice and its impact on structure–property relationships are debatable questions. Herein, using high-precision X-ray diffraction of a Mn (2 atom %)-doped STO single crystal, clear fingerprints of the displacement disorder of Mn cations in the perovskite B-sublattice are observed. Moreover, near the temperature of the antiferrodistortive transition, the off-center Mn position splits in two, providing the unequal potential barrier’s distribution for possible local atomic hopping. A link with this was found via analysis of the dielectric response that reveals two Arrhenius-type relaxation processes with similar activation energies (35 and 43 meV) and attempt frequencies (1 × 1011 and ∼1.6 × 1010 Hz), suggesting similar dielectric relaxation mechanisms. |
| doi_str_mv | 10.1021/acs.jpclett.2c03513 |
| format | Article |
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However, to date, the specifics of incorporation of the manganese ion into the perovskite lattice and its impact on structure–property relationships are debatable questions. Herein, using high-precision X-ray diffraction of a Mn (2 atom %)-doped STO single crystal, clear fingerprints of the displacement disorder of Mn cations in the perovskite B-sublattice are observed. Moreover, near the temperature of the antiferrodistortive transition, the off-center Mn position splits in two, providing the unequal potential barrier’s distribution for possible local atomic hopping. A link with this was found via analysis of the dielectric response that reveals two Arrhenius-type relaxation processes with similar activation energies (35 and 43 meV) and attempt frequencies (1 × 1011 and ∼1.6 × 1010 Hz), suggesting similar dielectric relaxation mechanisms.</description><identifier>ISSN: 1948-7185</identifier><identifier>EISSN: 1948-7185</identifier><identifier>DOI: 10.1021/acs.jpclett.2c03513</identifier><language>eng</language><publisher>American Chemical Society</publisher><subject>Physical Insights into Materials and Molecular Properties</subject><ispartof>The journal of physical chemistry letters, 2022-12, Vol.13 (50), p.11720-11728</ispartof><rights>2022 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-5416-9579 ; 0000-0003-3324-2893 ; 0000-0002-5482-9477 ; 0000-0002-5317-0818</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acs.jpclett.2c03513$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acs.jpclett.2c03513$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,27053,27901,27902,56713,56763</link.rule.ids></links><search><creatorcontrib>Talanov, Mikhail V.</creatorcontrib><creatorcontrib>Stash, Adam I.</creatorcontrib><creatorcontrib>Ivanov, Sergey A.</creatorcontrib><creatorcontrib>Zhukova, Elena S.</creatorcontrib><creatorcontrib>Gorshunov, Boris P.</creatorcontrib><creatorcontrib>Nekrasov, Boris M.</creatorcontrib><creatorcontrib>Stolyarov, Vasily S.</creatorcontrib><creatorcontrib>Kozlov, Vladislav I.</creatorcontrib><creatorcontrib>Savinov, Maxim</creatorcontrib><creatorcontrib>Bush, Alexander A.</creatorcontrib><title>Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals</title><title>The journal of physical chemistry letters</title><addtitle>J. Phys. Chem. Lett</addtitle><description>Strontium titanate SrTiO3 (STO) is a canonical example of a quantum paraelectric, and its doping with manganese ions unlocks its potential as a quantum multiferroic candidate. However, to date, the specifics of incorporation of the manganese ion into the perovskite lattice and its impact on structure–property relationships are debatable questions. Herein, using high-precision X-ray diffraction of a Mn (2 atom %)-doped STO single crystal, clear fingerprints of the displacement disorder of Mn cations in the perovskite B-sublattice are observed. Moreover, near the temperature of the antiferrodistortive transition, the off-center Mn position splits in two, providing the unequal potential barrier’s distribution for possible local atomic hopping. A link with this was found via analysis of the dielectric response that reveals two Arrhenius-type relaxation processes with similar activation energies (35 and 43 meV) and attempt frequencies (1 × 1011 and ∼1.6 × 1010 Hz), suggesting similar dielectric relaxation mechanisms.</description><subject>Physical Insights into Materials and Molecular Properties</subject><issn>1948-7185</issn><issn>1948-7185</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpNkMtOwzAURC0EEqXwBWy8ZJPWr8TJEqW8pKJKtKwjx7kBV64dbFeCvyelXbCaO6PR6OogdEvJjBJG50rH2XbQFlKaMU14TvkZmtBKlJmkZX7-775EVzFuCSkqUsoJciud1Cd0QWUbYxN0uPYuBW-x7_HCxMEqDTtw6WB86CBg5brRgAWdgtH4Daz6Vsl4h43Dry5b-GGcWYeNWXG8Nu7DAq7DT0zKxmt00Y8CNyedovfHh039nC1XTy_1_TJTNC9TJmQnuOxoRVgr26JnsqsYcKoK3VLSFgLanpScghKyyEfHOGkpV4xxzUTB-BTdHXeH4L_2EFOzM1GDtcqB38eGyVzkRBBGxur8WB0hNlu_D258rKGkOZBt_sIj2eZElv8CL7NvSg</recordid><startdate>20221222</startdate><enddate>20221222</enddate><creator>Talanov, Mikhail V.</creator><creator>Stash, Adam I.</creator><creator>Ivanov, Sergey A.</creator><creator>Zhukova, Elena S.</creator><creator>Gorshunov, Boris P.</creator><creator>Nekrasov, Boris M.</creator><creator>Stolyarov, Vasily S.</creator><creator>Kozlov, Vladislav I.</creator><creator>Savinov, Maxim</creator><creator>Bush, Alexander A.</creator><general>American Chemical Society</general><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-5416-9579</orcidid><orcidid>https://orcid.org/0000-0003-3324-2893</orcidid><orcidid>https://orcid.org/0000-0002-5482-9477</orcidid><orcidid>https://orcid.org/0000-0002-5317-0818</orcidid></search><sort><creationdate>20221222</creationdate><title>Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals</title><author>Talanov, Mikhail V. ; Stash, Adam I. ; Ivanov, Sergey A. ; Zhukova, Elena S. ; Gorshunov, Boris P. ; Nekrasov, Boris M. ; Stolyarov, Vasily S. ; Kozlov, Vladislav I. ; Savinov, Maxim ; Bush, Alexander A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a158t-47d437d1902b7b6f27d92e31a6cb10b64ebf0831ea47654eb230b13a223c24623</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Physical Insights into Materials and Molecular Properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Talanov, Mikhail V.</creatorcontrib><creatorcontrib>Stash, Adam I.</creatorcontrib><creatorcontrib>Ivanov, Sergey A.</creatorcontrib><creatorcontrib>Zhukova, Elena S.</creatorcontrib><creatorcontrib>Gorshunov, Boris P.</creatorcontrib><creatorcontrib>Nekrasov, Boris M.</creatorcontrib><creatorcontrib>Stolyarov, Vasily S.</creatorcontrib><creatorcontrib>Kozlov, Vladislav I.</creatorcontrib><creatorcontrib>Savinov, Maxim</creatorcontrib><creatorcontrib>Bush, Alexander A.</creatorcontrib><collection>MEDLINE - Academic</collection><jtitle>The journal of physical chemistry letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Talanov, Mikhail V.</au><au>Stash, Adam I.</au><au>Ivanov, Sergey A.</au><au>Zhukova, Elena S.</au><au>Gorshunov, Boris P.</au><au>Nekrasov, Boris M.</au><au>Stolyarov, Vasily S.</au><au>Kozlov, Vladislav I.</au><au>Savinov, Maxim</au><au>Bush, Alexander A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals</atitle><jtitle>The journal of physical chemistry letters</jtitle><addtitle>J. Phys. Chem. Lett</addtitle><date>2022-12-22</date><risdate>2022</risdate><volume>13</volume><issue>50</issue><spage>11720</spage><epage>11728</epage><pages>11720-11728</pages><issn>1948-7185</issn><eissn>1948-7185</eissn><abstract>Strontium titanate SrTiO3 (STO) is a canonical example of a quantum paraelectric, and its doping with manganese ions unlocks its potential as a quantum multiferroic candidate. However, to date, the specifics of incorporation of the manganese ion into the perovskite lattice and its impact on structure–property relationships are debatable questions. Herein, using high-precision X-ray diffraction of a Mn (2 atom %)-doped STO single crystal, clear fingerprints of the displacement disorder of Mn cations in the perovskite B-sublattice are observed. Moreover, near the temperature of the antiferrodistortive transition, the off-center Mn position splits in two, providing the unequal potential barrier’s distribution for possible local atomic hopping. A link with this was found via analysis of the dielectric response that reveals two Arrhenius-type relaxation processes with similar activation energies (35 and 43 meV) and attempt frequencies (1 × 1011 and ∼1.6 × 1010 Hz), suggesting similar dielectric relaxation mechanisms.</abstract><pub>American Chemical Society</pub><doi>10.1021/acs.jpclett.2c03513</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-5416-9579</orcidid><orcidid>https://orcid.org/0000-0003-3324-2893</orcidid><orcidid>https://orcid.org/0000-0002-5482-9477</orcidid><orcidid>https://orcid.org/0000-0002-5317-0818</orcidid></addata></record> |
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| title | Octahedra-Tilted Control of Displacement Disorder and Dielectric Relaxation in Mn-Doped SrTiO3 Single Crystals |
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