Nodal Quasiparticles and Antinodal Charge Ordering in Ca2-xNaxCuO2Cl2

K M Shen; F Ronning; D H Lu; Felix Baumberger; N J C Ingle; W S Lee; W Meevasana; Y Kohsaka; M Azuma; M Takano; H Takagi; Z X Shen

doi:11.1126/science.1103627

Nodal Quasiparticles and Antinodal Charge Ordering in Ca2-xNaxCuO2Cl2

K M Shen, F Ronning, D H Lu, Felix Baumberger, N J C Ingle, W S Lee, W Meevasana, Y Kohsaka, M Azuma, M Takano, H Takagi, Z X Shen

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

Abstract

Understanding the role of competing states in the cuprates is essential for developing a theory for high-temperature superconductivity. We report angle-resolved photoemission spectroscopy experiments which probe the 4a(o) x 4a(o) charge-ordered state discovered by scanning tunneling microscopy in the lightly doped cuprate superconductor Ca2-x NaxCuO2Cl2. Our measurements reveal a marked dichotomy between the real- and momentum-space probes, for which charge. ordering is emphasized in the tunneling measurements and photoemission is most sensitive to excitations near the node of the d-wave superconducting gap. These results emphasize the importance of momentum anisotropy in determining the complex electronic properties of the cuprates and places strong constraints on theoretical models of the charge-ordered state.

Original language	English
Pages (from-to)	901
Number of pages	901
Journal	Science
Volume	307
DOIs	https://doi.org/11.1126/science.1103627
Publication status	Published - 11 Feb 2005

Keywords

SUPERCONDUCTORS
BI2SR2CACU2O8+DELTA
CA2CUO2CL2
PSEUDOGAP
OXIDES
STATES
MODEL

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11.1126/science.1103627

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title = "Nodal Quasiparticles and Antinodal Charge Ordering in Ca2-xNaxCuO2Cl2",

abstract = "Understanding the role of competing states in the cuprates is essential for developing a theory for high-temperature superconductivity. We report angle-resolved photoemission spectroscopy experiments which probe the 4a(o) x 4a(o) charge-ordered state discovered by scanning tunneling microscopy in the lightly doped cuprate superconductor Ca2-x NaxCuO2Cl2. Our measurements reveal a marked dichotomy between the real- and momentum-space probes, for which charge. ordering is emphasized in the tunneling measurements and photoemission is most sensitive to excitations near the node of the d-wave superconducting gap. These results emphasize the importance of momentum anisotropy in determining the complex electronic properties of the cuprates and places strong constraints on theoretical models of the charge-ordered state.",

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author = "Shen, {K M} and F Ronning and Lu, {D H} and Felix Baumberger and Ingle, {N J C} and Lee, {W S} and W Meevasana and Y Kohsaka and M Azuma and M Takano and H Takagi and Shen, {Z X}",

year = "2005",

month = feb,

day = "11",

doi = "11.1126/science.1103627",

language = "English",

volume = "307",

pages = "901",

journal = "Science",

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publisher = "American Association for the Advancement of Science",

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T1 - Nodal Quasiparticles and Antinodal Charge Ordering in Ca2-xNaxCuO2Cl2

AU - Shen, K M

AU - Ronning, F

AU - Lu, D H

AU - Baumberger, Felix

AU - Ingle, N J C

AU - Lee, W S

AU - Meevasana, W

AU - Kohsaka, Y

AU - Azuma, M

AU - Takano, M

AU - Takagi, H

AU - Shen, Z X

PY - 2005/2/11

Y1 - 2005/2/11

N2 - Understanding the role of competing states in the cuprates is essential for developing a theory for high-temperature superconductivity. We report angle-resolved photoemission spectroscopy experiments which probe the 4a(o) x 4a(o) charge-ordered state discovered by scanning tunneling microscopy in the lightly doped cuprate superconductor Ca2-x NaxCuO2Cl2. Our measurements reveal a marked dichotomy between the real- and momentum-space probes, for which charge. ordering is emphasized in the tunneling measurements and photoemission is most sensitive to excitations near the node of the d-wave superconducting gap. These results emphasize the importance of momentum anisotropy in determining the complex electronic properties of the cuprates and places strong constraints on theoretical models of the charge-ordered state.

AB - Understanding the role of competing states in the cuprates is essential for developing a theory for high-temperature superconductivity. We report angle-resolved photoemission spectroscopy experiments which probe the 4a(o) x 4a(o) charge-ordered state discovered by scanning tunneling microscopy in the lightly doped cuprate superconductor Ca2-x NaxCuO2Cl2. Our measurements reveal a marked dichotomy between the real- and momentum-space probes, for which charge. ordering is emphasized in the tunneling measurements and photoemission is most sensitive to excitations near the node of the d-wave superconducting gap. These results emphasize the importance of momentum anisotropy in determining the complex electronic properties of the cuprates and places strong constraints on theoretical models of the charge-ordered state.

KW - SUPERCONDUCTORS

KW - BI2SR2CACU2O8+DELTA

KW - CA2CUO2CL2

KW - PSEUDOGAP

KW - OXIDES

KW - STATES

KW - MODEL

U2 - 11.1126/science.1103627

DO - 11.1126/science.1103627

M3 - Article

SN - 0036-8075

VL - 307

SP - 901

JO - Science

JF - Science

ER -

Nodal Quasiparticles and Antinodal Charge Ordering in Ca2-xNaxCuO2Cl2

Abstract

Keywords

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