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Title: Disorder-induced suppression of charge density wave order: STM study of Pd-intercalated ErTe 3

Abstract

Pd-intercalated ErTe3 is studied as a model system to explore the effect of increasing disorder on an incommensurate two-component charge density wave (CDW). The ordering vectors of the CDW components lie along the two in-plane principal axes of the nearly tetragonal crystal structure. Using scanning tunneling microscopy (STM), we show that introducing Pd intercalants (i.e., disorder) induces CDW dislocations, which appear to be associated with each CDW component separately. Increasing Pd concentration has a stronger effect on the secondary CDW order, manifested in a higher density of dislocations, and thus increases the anisotropy (nematic character) of the CDW. Suggestive evidence of Bragg glass phases at weak disorder is also discussed.

Authors:
ORCiD logo; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1605023
Grant/Contract Number:  
[AC02-76SF00515; W911NF-12-1-0537; GBMF4529]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
[ Journal Volume: 100; Journal Issue: 23]; Journal ID: ISSN 2469-9950
Country of Publication:
United States
Language:
English

Citation Formats

Fang, Alan, Straquadine, Joshua A. W., Fisher, Ian R., Kivelson, Steven A., and Kapitulnik, Aharon. Disorder-induced suppression of charge density wave order: STM study of Pd-intercalated ErTe3. United States: N. p., 2019. Web. doi:10.1103/physrevb.100.235446.
Fang, Alan, Straquadine, Joshua A. W., Fisher, Ian R., Kivelson, Steven A., & Kapitulnik, Aharon. Disorder-induced suppression of charge density wave order: STM study of Pd-intercalated ErTe3. United States. doi:10.1103/physrevb.100.235446.
Fang, Alan, Straquadine, Joshua A. W., Fisher, Ian R., Kivelson, Steven A., and Kapitulnik, Aharon. Sun . "Disorder-induced suppression of charge density wave order: STM study of Pd-intercalated ErTe3". United States. doi:10.1103/physrevb.100.235446.
@article{osti_1605023,
title = {Disorder-induced suppression of charge density wave order: STM study of Pd-intercalated ErTe3},
author = {Fang, Alan and Straquadine, Joshua A. W. and Fisher, Ian R. and Kivelson, Steven A. and Kapitulnik, Aharon},
abstractNote = {Pd-intercalated ErTe3 is studied as a model system to explore the effect of increasing disorder on an incommensurate two-component charge density wave (CDW). The ordering vectors of the CDW components lie along the two in-plane principal axes of the nearly tetragonal crystal structure. Using scanning tunneling microscopy (STM), we show that introducing Pd intercalants (i.e., disorder) induces CDW dislocations, which appear to be associated with each CDW component separately. Increasing Pd concentration has a stronger effect on the secondary CDW order, manifested in a higher density of dislocations, and thus increases the anisotropy (nematic character) of the CDW. Suggestive evidence of Bragg glass phases at weak disorder is also discussed.},
doi = {10.1103/physrevb.100.235446},
journal = {Physical Review B},
number = [23],
volume = [100],
place = {United States},
year = {2019},
month = {12}
}

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