Anomalous oxygen-isotope effect on the in-plane far-infrared
conductivity of detwinned (YBa2Cu3O6.9)-O-16,18

J 2004

Anomalous oxygen-isotope effect on the in-plane far-infrared conductivity of detwinned (YBa2Cu3O6.9)-O-16,18

BERNHARD, Christian, Todd HOLDEN, Alexandr BORIS, Natalia KOVALEVA, Alexei PIMENOV et. al.

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

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

Abstract

ORIG CZ

V originále

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.

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

Citovat

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.

@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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