Anomalous optical response with variation in band filling in linear chain conductors

B. A. Weinstein; M. L. Slade; A. J. Epstein; J. S. Miller

doi:10.1016/0038-1098(81)90540-8

Anomalous optical response with variation in band filling in linear chain conductors

B. A. Weinstein
, M. L. Slade
, A. J. Epstein
, J. S. Miller

Physics

Xerox
Occidental Research Corporation

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

We report the polarized infrared reflectance of (N-methylphenazinium)_x (phenazine)_1-x(tetracyanoquinodimethanide), (NMP)_x(Phen)_1-x(TCNQ) for 0.5≤x≤1.0. We demonstrate that the "Drude edge" in TCNQ salts is related to the conduction electron charge density. An anomalous rapid red shift of the plasma frequency, observed for x ∼ 2 3, may signal the emptying of the conduction electrons from half of the chains and/or a crossover from small U/W (coulomb repulsion/bandwidth) to large U/W behavior.

Original language	English
Pages (from-to)	643-646
Number of pages	4
Journal	Solid State Communications
Volume	37
Issue number	8
DOIs	https://doi.org/10.1016/0038-1098(81)90540-8
State	Published - Feb 1981

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title = "Anomalous optical response with variation in band filling in linear chain conductors",

abstract = "We report the polarized infrared reflectance of (N-methylphenazinium)x (phenazine)1-x(tetracyanoquinodimethanide), (NMP)x(Phen)1-x(TCNQ) for 0.5≤x≤1.0. We demonstrate that the {"}Drude edge{"} in TCNQ salts is related to the conduction electron charge density. An anomalous rapid red shift of the plasma frequency, observed for x ∼ 2 3, may signal the emptying of the conduction electrons from half of the chains and/or a crossover from small U/W (coulomb repulsion/bandwidth) to large U/W behavior.",

author = "Weinstein, \{B. A.\} and Slade, \{M. L.\} and Epstein, \{A. J.\} and Miller, \{J. S.\}",

year = "1981",

month = feb,

doi = "10.1016/0038-1098(81)90540-8",

language = "English",

volume = "37",

pages = "643--646",

journal = "Solid State Communications",

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T1 - Anomalous optical response with variation in band filling in linear chain conductors

AU - Weinstein, B. A.

AU - Slade, M. L.

AU - Epstein, A. J.

AU - Miller, J. S.

PY - 1981/2

Y1 - 1981/2

N2 - We report the polarized infrared reflectance of (N-methylphenazinium)x (phenazine)1-x(tetracyanoquinodimethanide), (NMP)x(Phen)1-x(TCNQ) for 0.5≤x≤1.0. We demonstrate that the "Drude edge" in TCNQ salts is related to the conduction electron charge density. An anomalous rapid red shift of the plasma frequency, observed for x ∼ 2 3, may signal the emptying of the conduction electrons from half of the chains and/or a crossover from small U/W (coulomb repulsion/bandwidth) to large U/W behavior.

AB - We report the polarized infrared reflectance of (N-methylphenazinium)x (phenazine)1-x(tetracyanoquinodimethanide), (NMP)x(Phen)1-x(TCNQ) for 0.5≤x≤1.0. We demonstrate that the "Drude edge" in TCNQ salts is related to the conduction electron charge density. An anomalous rapid red shift of the plasma frequency, observed for x ∼ 2 3, may signal the emptying of the conduction electrons from half of the chains and/or a crossover from small U/W (coulomb repulsion/bandwidth) to large U/W behavior.

UR - https://www.scopus.com/pages/publications/0019532289

U2 - 10.1016/0038-1098(81)90540-8

DO - 10.1016/0038-1098(81)90540-8

M3 - Article

AN - SCOPUS:0019532289

SN - 0038-1098

VL - 37

SP - 643

EP - 646

JO - Solid State Communications

JF - Solid State Communications

IS - 8

ER -

Anomalous optical response with variation in band filling in linear chain conductors

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