BERNHARD, Christian, Todd HOLDEN, Alexandr BORIS, Natalia KOVALEVA, Alexei PIMENOV and Josef HUMLÍČEK. Anomalous oxygen-isotope effect on the in-plane far-infrared conductivity of detwinned (YBa2Cu3O6.9)-O-16,18. Physical Review B. USA: The American Physical Society, 2004, vol. 69, No 5, p. 2502-4, 4 pp. ISSN 0163-1829. |
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@article{553802, author = {Bernhard, Christian and Holden, Todd and Boris, Alexandr and Kovaleva, Natalia and Pimenov, Alexei and Humlíček, Josef}, article_location = {USA}, article_number = {5}, keywords = {CHARGE-DENSITY WAVES; OPTICAL CONDUCTIVITY; SUPERCONDUCTORS; TEMPERATURE; PSEUDOGAP; GAP; LA2-XSR(X)CUO4; ELLIPSOMETRY; SPECTROSCOPY; YBA2CU3O6+X}, language = {eng}, issn = {0163-1829}, journal = {Physical Review B}, title = {Anomalous oxygen-isotope effect on the in-plane far-infrared conductivity of detwinned (YBa2Cu3O6.9)-O-16,18}, volume = {69}, year = {2004} }
TY - JOUR ID - 553802 AU - Bernhard, Christian - Holden, Todd - Boris, Alexandr - Kovaleva, Natalia - Pimenov, Alexei - Humlíček, Josef PY - 2004 TI - Anomalous oxygen-isotope effect on the in-plane far-infrared conductivity of detwinned (YBa2Cu3O6.9)-O-16,18 JF - Physical Review B VL - 69 IS - 5 SP - 2502-4 EP - 2502-4 PB - The American Physical Society SN - 01631829 KW - CHARGE-DENSITY WAVES KW - OPTICAL CONDUCTIVITY KW - SUPERCONDUCTORS KW - TEMPERATURE KW - PSEUDOGAP KW - GAP KW - LA2-XSR(X)CUO4 KW - ELLIPSOMETRY KW - SPECTROSCOPY KW - YBA2CU3O6+X N2 - We observe a large and anomalous oxygen isotope effect on the a-axis component of the far-infrared electronic response of detwinned (YBa2Cu3O6.9)-O-16,18. For O-18 a pronounced low-energy electronic mode (LEM) appears around 240 cm(-1). This a-axis LEM exhibits a clear aging effect, after 1 y it is shifted to 190 cm(-1). For O-16 we cannot resolve a corresponding a-axis LEM above 120 cm(-1). We interpret the LEM in terms of a collective electronic mode that is pinned by "isotopic defects," i.e., by the residual O-16 in the matrix of O-18. ER -
BERNHARD, Christian, Todd HOLDEN, Alexandr BORIS, Natalia KOVALEVA, Alexei PIMENOV and Josef HUMLÍČEK. Anomalous oxygen-isotope effect on the in-plane far-infrared conductivity of detwinned (YBa2Cu3O6.9)-O-16,18. \textit{Physical Review B}. USA: The American Physical Society, 2004, vol.~69, No~5, p.~2502-4, 4 pp. ISSN~0163-1829.
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