Evidence for strong lattice effects as revealed from huge unconventional oxygen isotope effects on the pseudogap temperature in La2−xSrxCuO4. Bendele, M., von Rohr, F., Guguchia, Z., Pomjakushina, E., Conder, K., Bianconi, A., Simon, A., Bussmann-Holder, A., & Keller, H. Physical Review B, 95(1):014514+, 2017.
Paper doi abstract bibtex The oxygen isotope (\${\textasciicircum}16{\textbackslash}mathrmO\$/\${\textasciicircum}18{\textbackslash}mathrmO\$) effect (OIE) on the pseudogap (charge-stripe ordering) temperature \$T{\textasciicircum}*\$ is investigated for the cuprate superconductor \${\textbackslash}mathrmLa_2{\textbackslash}ensuremath-x{\textbackslash}mathrmSr_x{\textbackslash}mathrmCuO_4\$ as a function of doping \$x\$ by means of x-ray absorption near edge structure studies. A strong \$x\$ dependent and sign reversed OIE on \$T{\textasciicircum}*\$ is observed. The OIE exponent \${\textbackslash}ensuremath{\textbackslash}alpha_T{\textasciicircum}*\$ systematically decreases from \${\textbackslash}ensuremath{\textbackslash}alpha_T{\textasciicircum}*={\textbackslash}ensuremath-0.6(1.3)\$ for \$x=0.15\$ to \${\textbackslash}ensuremath{\textbackslash}alpha_T{\textasciicircum}*={\textbackslash}ensuremath-4.4(1.1)\$ for \$x=0.06\$, corresponding to increasing \$T{\textasciicircum}*\$ and decreasing superconducting transition temperature \$T_c\$. Both \$T{\textasciicircum}*({\textasciicircum}16{\textbackslash}mathrmO)\$ and \$T{\textasciicircum}*({\textasciicircum}18{\textbackslash}mathrmO)\$ exhibit a linear doping dependence with different slopes and critical end points [where \$T{\textasciicircum}*({\textasciicircum}16{\textbackslash}mathrmO)\$ and \$T{\textasciicircum}*({\textasciicircum}18{\textbackslash}mathrmO)\$ fall to zero] at \$x_c({\textasciicircum}16{\textbackslash}mathrmO)=0.201(4)\$ and \$x_c({\textasciicircum}18{\textbackslash}mathrmO)=0.182(3)\$, indicating a large positive OIE of \$x_c\$ with an exponent of \${\textbackslash}ensuremath{\textbackslash}alpha_x_c=0.84(22)\$. The remarkably large and strongly doping dependent OIE on \$T{\textasciicircum}*\$ signals a substantial involvement of the lattice in the formation of the pseudogap, consistent with a polaronic approach to cuprate superconductivity and the vibronic character of its ground state.
@article{bendele_evidence_2017,
title = {Evidence for strong lattice effects as revealed from huge unconventional oxygen isotope effects on the pseudogap temperature in {La}2−{xSrxCuO}4},
volume = {95},
issn = {2469-9950},
url = {http://dx.doi.org/10.1103/physrevb.95.014514},
doi = {10.1103/physrevb.95.014514},
abstract = {The oxygen isotope (\${\textasciicircum}16{\textbackslash}mathrmO\$/\${\textasciicircum}18{\textbackslash}mathrmO\$) effect (OIE) on the pseudogap (charge-stripe ordering) temperature \$T{\textasciicircum}*\$ is investigated for the cuprate superconductor \${\textbackslash}mathrmLa\_2{\textbackslash}ensuremath-x{\textbackslash}mathrmSr\_x{\textbackslash}mathrmCuO\_4\$ as a function of doping \$x\$ by means of x-ray absorption near edge structure studies. A strong \$x\$ dependent and sign reversed OIE on \$T{\textasciicircum}*\$ is observed. The OIE exponent \${\textbackslash}ensuremath{\textbackslash}alpha\_T{\textasciicircum}*\$ systematically decreases from \${\textbackslash}ensuremath{\textbackslash}alpha\_T{\textasciicircum}*={\textbackslash}ensuremath-0.6(1.3)\$ for \$x=0.15\$ to \${\textbackslash}ensuremath{\textbackslash}alpha\_T{\textasciicircum}*={\textbackslash}ensuremath-4.4(1.1)\$ for \$x=0.06\$, corresponding to increasing \$T{\textasciicircum}*\$ and decreasing superconducting transition temperature \$T\_c\$. Both \$T{\textasciicircum}*({\textasciicircum}16{\textbackslash}mathrmO)\$ and \$T{\textasciicircum}*({\textasciicircum}18{\textbackslash}mathrmO)\$ exhibit a linear doping dependence with different slopes and critical end points [where \$T{\textasciicircum}*({\textasciicircum}16{\textbackslash}mathrmO)\$ and \$T{\textasciicircum}*({\textasciicircum}18{\textbackslash}mathrmO)\$ fall to zero] at \$x\_c({\textasciicircum}16{\textbackslash}mathrmO)=0.201(4)\$ and \$x\_c({\textasciicircum}18{\textbackslash}mathrmO)=0.182(3)\$, indicating a large positive OIE of \$x\_c\$ with an exponent of \${\textbackslash}ensuremath{\textbackslash}alpha\_x\_c=0.84(22)\$. The remarkably large and strongly doping dependent OIE on \$T{\textasciicircum}*\$ signals a substantial involvement of the lattice in the formation of the pseudogap, consistent with a polaronic approach to cuprate superconductivity and the vibronic character of its ground state.},
number = {1},
journal = {Physical Review B},
author = {Bendele, M. and von Rohr, F. and Guguchia, Z. and Pomjakushina, E. and Conder, K. and Bianconi, A. and Simon, A. and Bussmann-Holder, A. and Keller, H.},
year = {2017},
pages = {014514+}
}
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{"_id":"HDYmhjWovRKN7ns9A","bibbaseid":"bendele-vonrohr-guguchia-pomjakushina-conder-bianconi-simon-bussmannholder-etal-evidenceforstronglatticeeffectsasrevealedfromhugeunconventionaloxygenisotopeeffectsonthepseudogaptemperatureinla2xsrxcuo4-2017","downloads":0,"creationDate":"2019-03-06T18:12:57.012Z","title":"Evidence for strong lattice effects as revealed from huge unconventional oxygen isotope effects on the pseudogap temperature in La2−xSrxCuO4","author_short":["Bendele, M.","von Rohr, F.","Guguchia, Z.","Pomjakushina, E.","Conder, K.","Bianconi, A.","Simon, A.","Bussmann-Holder, A.","Keller, H."],"year":2017,"bibtype":"article","biburl":"https://bibbase.org/zotero/abiancon","bibdata":{"bibtype":"article","type":"article","title":"Evidence for strong lattice effects as revealed from huge unconventional oxygen isotope effects on the pseudogap temperature in La2−xSrxCuO4","volume":"95","issn":"2469-9950","url":"http://dx.doi.org/10.1103/physrevb.95.014514","doi":"10.1103/physrevb.95.014514","abstract":"The oxygen isotope (\\${\\textasciicircum}16{\\textbackslash}mathrmO\\$/\\${\\textasciicircum}18{\\textbackslash}mathrmO\\$) effect (OIE) on the pseudogap (charge-stripe ordering) temperature \\$T{\\textasciicircum}*\\$ is investigated for the cuprate superconductor \\${\\textbackslash}mathrmLa_2{\\textbackslash}ensuremath-x{\\textbackslash}mathrmSr_x{\\textbackslash}mathrmCuO_4\\$ as a function of doping \\$x\\$ by means of x-ray absorption near edge structure studies. A strong \\$x\\$ dependent and sign reversed OIE on \\$T{\\textasciicircum}*\\$ is observed. The OIE exponent \\${\\textbackslash}ensuremath{\\textbackslash}alpha_T{\\textasciicircum}*\\$ systematically decreases from \\${\\textbackslash}ensuremath{\\textbackslash}alpha_T{\\textasciicircum}*={\\textbackslash}ensuremath-0.6(1.3)\\$ for \\$x=0.15\\$ to \\${\\textbackslash}ensuremath{\\textbackslash}alpha_T{\\textasciicircum}*={\\textbackslash}ensuremath-4.4(1.1)\\$ for \\$x=0.06\\$, corresponding to increasing \\$T{\\textasciicircum}*\\$ and decreasing superconducting transition temperature \\$T_c\\$. Both \\$T{\\textasciicircum}*({\\textasciicircum}16{\\textbackslash}mathrmO)\\$ and \\$T{\\textasciicircum}*({\\textasciicircum}18{\\textbackslash}mathrmO)\\$ exhibit a linear doping dependence with different slopes and critical end points [where \\$T{\\textasciicircum}*({\\textasciicircum}16{\\textbackslash}mathrmO)\\$ and \\$T{\\textasciicircum}*({\\textasciicircum}18{\\textbackslash}mathrmO)\\$ fall to zero] at \\$x_c({\\textasciicircum}16{\\textbackslash}mathrmO)=0.201(4)\\$ and \\$x_c({\\textasciicircum}18{\\textbackslash}mathrmO)=0.182(3)\\$, indicating a large positive OIE of \\$x_c\\$ with an exponent of \\${\\textbackslash}ensuremath{\\textbackslash}alpha_x_c=0.84(22)\\$. The remarkably large and strongly doping dependent OIE on \\$T{\\textasciicircum}*\\$ signals a substantial involvement of the lattice in the formation of the pseudogap, consistent with a polaronic approach to cuprate superconductivity and the vibronic character of its ground state.","number":"1","journal":"Physical Review B","author":[{"propositions":[],"lastnames":["Bendele"],"firstnames":["M."],"suffixes":[]},{"propositions":["von"],"lastnames":["Rohr"],"firstnames":["F."],"suffixes":[]},{"propositions":[],"lastnames":["Guguchia"],"firstnames":["Z."],"suffixes":[]},{"propositions":[],"lastnames":["Pomjakushina"],"firstnames":["E."],"suffixes":[]},{"propositions":[],"lastnames":["Conder"],"firstnames":["K."],"suffixes":[]},{"propositions":[],"lastnames":["Bianconi"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Simon"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Bussmann-Holder"],"firstnames":["A."],"suffixes":[]},{"propositions":[],"lastnames":["Keller"],"firstnames":["H."],"suffixes":[]}],"year":"2017","pages":"014514+","bibtex":"@article{bendele_evidence_2017,\n\ttitle = {Evidence for strong lattice effects as revealed from huge unconventional oxygen isotope effects on the pseudogap temperature in {La}2−{xSrxCuO}4},\n\tvolume = {95},\n\tissn = {2469-9950},\n\turl = {http://dx.doi.org/10.1103/physrevb.95.014514},\n\tdoi = {10.1103/physrevb.95.014514},\n\tabstract = {The oxygen isotope (\\${\\textasciicircum}16{\\textbackslash}mathrmO\\$/\\${\\textasciicircum}18{\\textbackslash}mathrmO\\$) effect (OIE) on the pseudogap (charge-stripe ordering) temperature \\$T{\\textasciicircum}*\\$ is investigated for the cuprate superconductor \\${\\textbackslash}mathrmLa\\_2{\\textbackslash}ensuremath-x{\\textbackslash}mathrmSr\\_x{\\textbackslash}mathrmCuO\\_4\\$ as a function of doping \\$x\\$ by means of x-ray absorption near edge structure studies. A strong \\$x\\$ dependent and sign reversed OIE on \\$T{\\textasciicircum}*\\$ is observed. The OIE exponent \\${\\textbackslash}ensuremath{\\textbackslash}alpha\\_T{\\textasciicircum}*\\$ systematically decreases from \\${\\textbackslash}ensuremath{\\textbackslash}alpha\\_T{\\textasciicircum}*={\\textbackslash}ensuremath-0.6(1.3)\\$ for \\$x=0.15\\$ to \\${\\textbackslash}ensuremath{\\textbackslash}alpha\\_T{\\textasciicircum}*={\\textbackslash}ensuremath-4.4(1.1)\\$ for \\$x=0.06\\$, corresponding to increasing \\$T{\\textasciicircum}*\\$ and decreasing superconducting transition temperature \\$T\\_c\\$. Both \\$T{\\textasciicircum}*({\\textasciicircum}16{\\textbackslash}mathrmO)\\$ and \\$T{\\textasciicircum}*({\\textasciicircum}18{\\textbackslash}mathrmO)\\$ exhibit a linear doping dependence with different slopes and critical end points [where \\$T{\\textasciicircum}*({\\textasciicircum}16{\\textbackslash}mathrmO)\\$ and \\$T{\\textasciicircum}*({\\textasciicircum}18{\\textbackslash}mathrmO)\\$ fall to zero] at \\$x\\_c({\\textasciicircum}16{\\textbackslash}mathrmO)=0.201(4)\\$ and \\$x\\_c({\\textasciicircum}18{\\textbackslash}mathrmO)=0.182(3)\\$, indicating a large positive OIE of \\$x\\_c\\$ with an exponent of \\${\\textbackslash}ensuremath{\\textbackslash}alpha\\_x\\_c=0.84(22)\\$. The remarkably large and strongly doping dependent OIE on \\$T{\\textasciicircum}*\\$ signals a substantial involvement of the lattice in the formation of the pseudogap, consistent with a polaronic approach to cuprate superconductivity and the vibronic character of its ground state.},\n\tnumber = {1},\n\tjournal = {Physical Review B},\n\tauthor = {Bendele, M. and von Rohr, F. and Guguchia, Z. and Pomjakushina, E. and Conder, K. and Bianconi, A. and Simon, A. and Bussmann-Holder, A. and Keller, H.},\n\tyear = {2017},\n\tpages = {014514+}\n}\n\n","author_short":["Bendele, M.","von Rohr, F.","Guguchia, Z.","Pomjakushina, E.","Conder, K.","Bianconi, A.","Simon, A.","Bussmann-Holder, A.","Keller, H."],"key":"bendele_evidence_2017","id":"bendele_evidence_2017","bibbaseid":"bendele-vonrohr-guguchia-pomjakushina-conder-bianconi-simon-bussmannholder-etal-evidenceforstronglatticeeffectsasrevealedfromhugeunconventionaloxygenisotopeeffectsonthepseudogaptemperatureinla2xsrxcuo4-2017","role":"author","urls":{"Paper":"http://dx.doi.org/10.1103/physrevb.95.014514"},"downloads":0},"search_terms":["evidence","strong","lattice","effects","revealed","huge","unconventional","oxygen","isotope","effects","pseudogap","temperature","la2","xsrxcuo4","bendele","von rohr","guguchia","pomjakushina","conder","bianconi","simon","bussmann-holder","keller"],"keywords":[],"authorIDs":[],"dataSources":["qfSWh53k794ZuPrG9"]}