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Title: Reversible structure manipulation by tuning carrier concentration in metastable Cu2S

Abstract

Harnessing a material’s functionality in applications and for fundamental studies often requires direct manipulation of its crystal symmetry. Here, we manipulate the crystal structure of Cu2S nanoparticles in a controlled and reversible fashion via variation of the electron dose rate, observed by transmission electron microscopy. Our control method is in contrast to conventional chemical doping, which is irreversible and often introduces unwanted lattice distortions. Our study sheds light on the much-debated question of whether a change in electronic structure can facilitate a change of crystal symmetry, or whether vice versa is always the case. Finally, we show that a minimal perturbation to the electronic degree of freedom can drive the structural phase transition in Cu2S, hence resolving this dilemma.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1377926
Alternate Identifier(s):
OSTI ID: 1412670
Report Number(s):
BNL-114478-2017-JA
Journal ID: ISSN 0027-8424; /pnas/114/37/9832.atom
Grant/Contract Number:  
SC0012704; OIA-1457888
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Tao, Jing, Chen, Jingyi, Li, Jun, Mathurin, Leanne, Zheng, Jin-Cheng, Li, Yan, Lu, Deyu, Cao, Yue, Wu, Lijun, Cava, Robert Joseph, and Zhu, Yimei. Reversible structure manipulation by tuning carrier concentration in metastable Cu2S. United States: N. p., 2017. Web. doi:10.1073/pnas.1709163114.
Tao, Jing, Chen, Jingyi, Li, Jun, Mathurin, Leanne, Zheng, Jin-Cheng, Li, Yan, Lu, Deyu, Cao, Yue, Wu, Lijun, Cava, Robert Joseph, & Zhu, Yimei. Reversible structure manipulation by tuning carrier concentration in metastable Cu2S. United States. doi:10.1073/pnas.1709163114.
Tao, Jing, Chen, Jingyi, Li, Jun, Mathurin, Leanne, Zheng, Jin-Cheng, Li, Yan, Lu, Deyu, Cao, Yue, Wu, Lijun, Cava, Robert Joseph, and Zhu, Yimei. Wed . "Reversible structure manipulation by tuning carrier concentration in metastable Cu2S". United States. doi:10.1073/pnas.1709163114.
@article{osti_1377926,
title = {Reversible structure manipulation by tuning carrier concentration in metastable Cu2S},
author = {Tao, Jing and Chen, Jingyi and Li, Jun and Mathurin, Leanne and Zheng, Jin-Cheng and Li, Yan and Lu, Deyu and Cao, Yue and Wu, Lijun and Cava, Robert Joseph and Zhu, Yimei},
abstractNote = {Harnessing a material’s functionality in applications and for fundamental studies often requires direct manipulation of its crystal symmetry. Here, we manipulate the crystal structure of Cu2S nanoparticles in a controlled and reversible fashion via variation of the electron dose rate, observed by transmission electron microscopy. Our control method is in contrast to conventional chemical doping, which is irreversible and often introduces unwanted lattice distortions. Our study sheds light on the much-debated question of whether a change in electronic structure can facilitate a change of crystal symmetry, or whether vice versa is always the case. Finally, we show that a minimal perturbation to the electronic degree of freedom can drive the structural phase transition in Cu2S, hence resolving this dilemma.},
doi = {10.1073/pnas.1709163114},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1073/pnas.1709163114

Citation Metrics:
Cited by: 4 works
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