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Title: Quantum Melting of the Hole Crystal in the Spin Ladder of Sr14-xCaxCu24O41

Abstract

We have used resonant soft x-ray scattering to study the effects of discommensuration on the hole Wigner crystal (HC) in the spin ladder Sr{sub 14-x}Ca{sub x}Cu{sub 24}O{sub 41} (SCCO). As the hole density is varied the HC forms only with the commensurate wave vectors LL=1/5 and LL=1/3; for incommensurate values it 'melts.' A simple scaling between LL and temperature is observed, {tau}1/3/{tau}1/5=5/3, indicating an inverse relationship between the interaction strength and wavelength. Our results suggest that SCCO contains hole pairs that are crystallized through an interplay between lattice commensuration and Coulomb repulsion, reminiscent of the 'pair density wave' scenario.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
914386
Report Number(s):
BNL-78954-2007-JA
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US200809%%48
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys. Rev. Lett.; Journal Volume: 97
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COULOMB FIELD; MELTING; SPIN; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; HOLES; DISTRIBUTION; national synchrotron light source

Citation Formats

Rusydi,A., Abbamonte, P., Eisaki, H., Fujimaki, Y., Blumberg, G., Uchida, S., and Sawatzky, G. Quantum Melting of the Hole Crystal in the Spin Ladder of Sr14-xCaxCu24O41. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.97.016403.
Rusydi,A., Abbamonte, P., Eisaki, H., Fujimaki, Y., Blumberg, G., Uchida, S., & Sawatzky, G. Quantum Melting of the Hole Crystal in the Spin Ladder of Sr14-xCaxCu24O41. United States. doi:10.1103/PhysRevLett.97.016403.
Rusydi,A., Abbamonte, P., Eisaki, H., Fujimaki, Y., Blumberg, G., Uchida, S., and Sawatzky, G. Sun . "Quantum Melting of the Hole Crystal in the Spin Ladder of Sr14-xCaxCu24O41". United States. doi:10.1103/PhysRevLett.97.016403.
@article{osti_914386,
title = {Quantum Melting of the Hole Crystal in the Spin Ladder of Sr14-xCaxCu24O41},
author = {Rusydi,A. and Abbamonte, P. and Eisaki, H. and Fujimaki, Y. and Blumberg, G. and Uchida, S. and Sawatzky, G.},
abstractNote = {We have used resonant soft x-ray scattering to study the effects of discommensuration on the hole Wigner crystal (HC) in the spin ladder Sr{sub 14-x}Ca{sub x}Cu{sub 24}O{sub 41} (SCCO). As the hole density is varied the HC forms only with the commensurate wave vectors LL=1/5 and LL=1/3; for incommensurate values it 'melts.' A simple scaling between LL and temperature is observed, {tau}1/3/{tau}1/5=5/3, indicating an inverse relationship between the interaction strength and wavelength. Our results suggest that SCCO contains hole pairs that are crystallized through an interplay between lattice commensuration and Coulomb repulsion, reminiscent of the 'pair density wave' scenario.},
doi = {10.1103/PhysRevLett.97.016403},
journal = {Phys. Rev. Lett.},
number = ,
volume = 97,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}
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