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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Basic information
Original name Anomalous oxygen-isotope effect on the in-plane far-infrared conductivity of detwinned (YBa2Cu3O6.9)-O-16,18
Name in Czech Anomální izotopový efekt kyslíku v FIR odezvě v rovině nezdvojčatělého YBs2Cu3O6.9-O-16,18
Authors BERNHARD, Christian (276 Germany), Todd HOLDEN (276 Germany), Alexandr BORIS (643 Russian Federation), Natalia KOVALEVA (643 Russian Federation), Alexei PIMENOV (643 Russian Federation) and Josef HUMLÍČEK (203 Czech Republic, guarantor).
Edition Physical Review B, USA, The American Physical Society, 2004, 0163-1829.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10302 Condensed matter physics
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 3.070 in 2001
RIV identification code RIV/00216224:14310/04:00021197
Organization unit Faculty of Science
Keywords in English CHARGE-DENSITY WAVES; OPTICAL CONDUCTIVITY; SUPERCONDUCTORS; TEMPERATURE; PSEUDOGAP; GAP; LA2-XSR(X)CUO4; ELLIPSOMETRY; SPECTROSCOPY; YBA2CU3O6+X
Tags CHARGE-DENSITY WAVES, ellipsometry, Gap, LA2-XSR(X)CUO4, OPTICAL CONDUCTIVITY, PSEUDOGAP, spectroscopy, Superconductors, Temperature, YBA2CU3O6+X
Tags International impact, Reviewed
Changed by Changed by: prof. RNDr. Josef Humlíček, CSc., učo 307. Changed: 9/2/2007 14:17.
Abstract
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.
Abstract (in Czech)
Pozorujeme výrazný anomální izitopový efekt kyslíku v komponentě podél osy a.
Links
MSM 143100002, plan (intention)Name: Fyzikální vlastnosti nových materiálů a vrstevnatých struktur
Investor: Ministry of Education, Youth and Sports of the CR, Physical properties of new materials and layered structures
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