Intrinsic nature of chiral charge order in the kagome superconductor Rb V3Sb5

Nana Shumiya; Md Shafayat Hossain; Jia Xin Yin; Yu Xiao Jiang; Brenden R. Ortiz; Hongxiong Liu; Youguo Shi; Qiangwei Yin; Hechang Lei; Songtian S. Zhang; Guoqing Chang; Qi Zhang; Tyler A. Cochran; Daniel Multer; Maksim Litskevich; Zi Jia Cheng; Xian P. Yang; Zurab Guguchia; Stephen D. Wilson; M. Zahid Hasan

doi:10.1103/PhysRevB.104.035131

Intrinsic nature of chiral charge order in the kagome superconductor Rb V3Sb5

Nana Shumiya, Md Shafayat Hossain, Jia Xin Yin, Yu Xiao Jiang, Brenden R. Ortiz, Hongxiong Liu, Youguo Shi, Qiangwei Yin, Hechang Lei, Songtian S. Zhang, Guoqing Chang, Qi Zhang, Tyler A. Cochran, Daniel Multer, Maksim Litskevich, Zi Jia Cheng, Xian P. Yang, Zurab Guguchia, Stephen D. Wilson, M. Zahid Hasan

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Abstract

Superconductors with kagome lattices have been identified for over 40 years, with a superconducting transition temperature Tc up to 7 K. Recently, certain kagome superconductors have been found to exhibit an exotic charge order, which intertwines with superconductivity and persists to a temperature being one order of magnitude higher than Tc. In this work, we use scanning tunneling microscopy to study the charge order in kagome superconductor RbV3Sb5. We observe both a 2×2 chiral charge order and nematic surface superlattices (predominantly 1×4). We find that the 2×2 charge order exhibits intrinsic chirality with magnetic field tunability. Defects can scatter electrons to introduce standing waves, which couple with the charge order to cause extrinsic effects. While the chiral charge order resembles that discovered in KV3Sb5, it further interacts with the nematic surface superlattices that are absent in KV3Sb5 but exist in CsV3Sb5.

Original language	English (US)
Article number	035131
Journal	Physical Review B
Volume	104
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevB.104.035131
State	Published - Jul 15 2021

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.104.035131

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Shumiya, N., Hossain, M. S., Yin, J. X., Jiang, Y. X., Ortiz, B. R., Liu, H., Shi, Y., Yin, Q., Lei, H., Zhang, S. S., Chang, G., Zhang, Q., Cochran, T. A., Multer, D., Litskevich, M., Cheng, Z. J., Yang, X. P., Guguchia, Z., Wilson, S. D., & Hasan, M. Z. (2021). Intrinsic nature of chiral charge order in the kagome superconductor Rb V3Sb5. Physical Review B, 104(3), Article 035131. https://doi.org/10.1103/PhysRevB.104.035131

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title = "Intrinsic nature of chiral charge order in the kagome superconductor Rb V3Sb5",

abstract = "Superconductors with kagome lattices have been identified for over 40 years, with a superconducting transition temperature Tc up to 7 K. Recently, certain kagome superconductors have been found to exhibit an exotic charge order, which intertwines with superconductivity and persists to a temperature being one order of magnitude higher than Tc. In this work, we use scanning tunneling microscopy to study the charge order in kagome superconductor RbV3Sb5. We observe both a 2×2 chiral charge order and nematic surface superlattices (predominantly 1×4). We find that the 2×2 charge order exhibits intrinsic chirality with magnetic field tunability. Defects can scatter electrons to introduce standing waves, which couple with the charge order to cause extrinsic effects. While the chiral charge order resembles that discovered in KV3Sb5, it further interacts with the nematic surface superlattices that are absent in KV3Sb5 but exist in CsV3Sb5.",

author = "Nana Shumiya and Hossain, {Md Shafayat} and Yin, {Jia Xin} and Jiang, {Yu Xiao} and Ortiz, {Brenden R.} and Hongxiong Liu and Youguo Shi and Qiangwei Yin and Hechang Lei and Zhang, {Songtian S.} and Guoqing Chang and Qi Zhang and Cochran, {Tyler A.} and Daniel Multer and Maksim Litskevich and Cheng, {Zi Jia} and Yang, {Xian P.} and Zurab Guguchia and Wilson, {Stephen D.} and Hasan, {M. Zahid}",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society.",

year = "2021",

month = jul,

day = "15",

doi = "10.1103/PhysRevB.104.035131",

language = "English (US)",

volume = "104",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

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Shumiya, N, Hossain, MS, Yin, JX, Jiang, YX, Ortiz, BR, Liu, H, Shi, Y, Yin, Q, Lei, H, Zhang, SS, Chang, G, Zhang, Q, Cochran, TA, Multer, D, Litskevich, M, Cheng, ZJ, Yang, XP, Guguchia, Z, Wilson, SD & Hasan, MZ 2021, 'Intrinsic nature of chiral charge order in the kagome superconductor Rb V3Sb5', Physical Review B, vol. 104, no. 3, 035131. https://doi.org/10.1103/PhysRevB.104.035131

TY - JOUR

T1 - Intrinsic nature of chiral charge order in the kagome superconductor Rb V3Sb5

AU - Shumiya, Nana

AU - Hossain, Md Shafayat

AU - Yin, Jia Xin

AU - Jiang, Yu Xiao

AU - Ortiz, Brenden R.

AU - Liu, Hongxiong

AU - Shi, Youguo

AU - Yin, Qiangwei

AU - Lei, Hechang

AU - Zhang, Songtian S.

AU - Chang, Guoqing

AU - Zhang, Qi

AU - Cochran, Tyler A.

AU - Multer, Daniel

AU - Litskevich, Maksim

AU - Cheng, Zi Jia

AU - Yang, Xian P.

AU - Guguchia, Zurab

AU - Wilson, Stephen D.

AU - Hasan, M. Zahid

PY - 2021/7/15

Y1 - 2021/7/15

N2 - Superconductors with kagome lattices have been identified for over 40 years, with a superconducting transition temperature Tc up to 7 K. Recently, certain kagome superconductors have been found to exhibit an exotic charge order, which intertwines with superconductivity and persists to a temperature being one order of magnitude higher than Tc. In this work, we use scanning tunneling microscopy to study the charge order in kagome superconductor RbV3Sb5. We observe both a 2×2 chiral charge order and nematic surface superlattices (predominantly 1×4). We find that the 2×2 charge order exhibits intrinsic chirality with magnetic field tunability. Defects can scatter electrons to introduce standing waves, which couple with the charge order to cause extrinsic effects. While the chiral charge order resembles that discovered in KV3Sb5, it further interacts with the nematic surface superlattices that are absent in KV3Sb5 but exist in CsV3Sb5.

AB - Superconductors with kagome lattices have been identified for over 40 years, with a superconducting transition temperature Tc up to 7 K. Recently, certain kagome superconductors have been found to exhibit an exotic charge order, which intertwines with superconductivity and persists to a temperature being one order of magnitude higher than Tc. In this work, we use scanning tunneling microscopy to study the charge order in kagome superconductor RbV3Sb5. We observe both a 2×2 chiral charge order and nematic surface superlattices (predominantly 1×4). We find that the 2×2 charge order exhibits intrinsic chirality with magnetic field tunability. Defects can scatter electrons to introduce standing waves, which couple with the charge order to cause extrinsic effects. While the chiral charge order resembles that discovered in KV3Sb5, it further interacts with the nematic surface superlattices that are absent in KV3Sb5 but exist in CsV3Sb5.

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U2 - 10.1103/PhysRevB.104.035131

DO - 10.1103/PhysRevB.104.035131

M3 - Article

AN - SCOPUS:85111098112

SN - 2469-9950

VL - 104

JO - Physical Review B

JF - Physical Review B

IS - 3

M1 - 035131

ER -

Intrinsic nature of chiral charge order in the kagome superconductor Rb V3Sb5

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