J 2002

In-plane polarized collective modes in detwinned YBa2Cu3O6.95 observed by spectral ellipsometry

BERNHARD, C., T. HOLDEN, Josef HUMLÍČEK, Dominik MUNZAR, A. GOLNIK et. al.

Basic information

Original name

In-plane polarized collective modes in detwinned YBa2Cu3O6.95 observed by spectral ellipsometry

Authors

BERNHARD, C. (276 Germany), T. HOLDEN (840 United States of America), Josef HUMLÍČEK (203 Czech Republic, guarantor), Dominik MUNZAR (203 Czech Republic) and A. GOLNIK (616 Poland)

Edition

Solid state communications, Velká Britanie, Pergamon-Elsevier Science, 2002, 0038-1098

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.671

RIV identification code

RIV/00216224:14310/02:00005746

Organization unit

Faculty of Science

UT WoS

000173266700007

Keywords in English

HIGH-TEMPERATURE SUPERCONDUCTORS; SINGLE-DOMAIN YBA2CU3O7; OPTICAL CONDUCTIVITY; ENERGY-GAP; STATE; SPECTROSCOPY; CRYSTAL

Tags

International impact, Reviewed
Změněno: 9/2/2007 14:42, prof. RNDr. Josef Humlíček, CSc.

Abstract

V originále

The in-plane dielectric response of detwinned YBa2Cu3O6.95 has been studied by far-infared ellipsometry. A surprisingly large number of in-plane polarized modes are observed. Some of them correspond to pure phonon modes. Others possess a large electronic contribution which strongly increases in the superconducting state. The free carrier response and the collective modes exhibit a Pronounced a-b anisotropy. We discuss our results in terms of a charge density wave state in the 1-D CuO chains and induced charge density fluctuations within the 2-D CuO2 planes.

In Czech

The in-plane dielectric response of detwinned YBa2Cu3O6.95 has been studied by far-infared ellipsometry. A surprisingly large number of in-plane polarized modes are observed. Some of them correspond to pure phonon modes. Others possess a large electronic contribution which strongly increases in the superconducting state. The free carrier response and the collective modes exhibit a Pronounced a-b anisotropy. We discuss our results in terms of a charge density wave state in the 1-D CuO chains and induced charge density fluctuations within the 2-D CuO2 planes.

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