Topologically Localized Vibronic Excitations in Second-Layer Graphene Nanoribbons.

Wang, Zhengya; Yin, Ruoting; Tang, Zixi; Du, Hongjian; Liang, Yifan; Wang, Xiaoqing; Deng, Qing-Song; Tan, Yuan-Zhi; Zhang, Yao; Ma, Chuanxu; Tan, Shijing; Wang, Bing

Wang, Zhengya; Yin, Ruoting; Tang, Zixi; Du, Hongjian; Liang, Yifan; Wang, Xiaoqing; Deng, Qing-Song; Tan, Yuan-Zhi; Zhang, Yao; Ma, Chuanxu; Tan, Shijing; Wang, Bing.

Afiliación

Wang Z; <a href="https://ror.org/01jeedh73">Hefei National Research Center for Physical Sciences</a> at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, and New Cornerstone Science Laboratory, <a href="https://ror.org/04c4dkn09">University of Scie
Yin R; <a href="https://ror.org/01jeedh73">Hefei National Research Center for Physical Sciences</a> at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, and New Cornerstone Science Laboratory, <a href="https://ror.org/04c4dkn09">University of Scie
Tang Z; <a href="https://ror.org/01jeedh73">Hefei National Research Center for Physical Sciences</a> at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, and New Cornerstone Science Laboratory, <a href="https://ror.org/04c4dkn09">University of Scie
Du H; <a href="https://ror.org/01jeedh73">Hefei National Research Center for Physical Sciences</a> at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, and New Cornerstone Science Laboratory, <a href="https://ror.org/04c4dkn09">University of Scie
Liang Y; Hefei National Laboratory, <a href="https://ror.org/04c4dkn09">University of Science and Technology of China</a>, Hefei 230088, China.
Wang X; <a href="https://ror.org/01jeedh73">Hefei National Research Center for Physical Sciences</a> at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, and New Cornerstone Science Laboratory, <a href="https://ror.org/04c4dkn09">University of Scie
Deng QS; Hefei National Laboratory, <a href="https://ror.org/04c4dkn09">University of Science and Technology of China</a>, Hefei 230088, China.
Tan YZ; <a href="https://ror.org/01jeedh73">Hefei National Research Center for Physical Sciences</a> at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, and New Cornerstone Science Laboratory, <a href="https://ror.org/04c4dkn09">University of Scie
Zhang Y; Hefei National Laboratory, <a href="https://ror.org/04c4dkn09">University of Science and Technology of China</a>, Hefei 230088, China.
Ma C; Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, <a href="https://ror.org/00mcjh785">Xiamen University</a>, 361005 Xiamen, China.
Tan S; Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, <a href="https://ror.org/00mcjh785">Xiamen University</a>, 361005 Xiamen, China.
Wang B; <a href="https://ror.org/01jeedh73">Hefei National Research Center for Physical Sciences</a> at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, and New Cornerstone Science Laboratory, <a href="https://ror.org/04c4dkn09">University of Scie

Phys Rev Lett ; 133(3): 036401, 2024 Jul 19.

Article en En | MEDLINE | ID: mdl-39094172

ABSTRACT

ABSTRACT

It is of fundamental importance to characterize the intrinsic properties, like the topological end states, in the on-surface synthesized graphene nanoribbons (GNRs), but the strong electronic interaction with the metal substrate usually smears out their characteristic features. Here, we report our approach to investigate the vibronic excitations of the topological end states in self-decoupled second-layer GNRs, which are grown using an on-surface squeezing-induced spillover strategy. The vibronic progressions show highly spatially localized distributions at the second-layer GNR ends, which can be ascribed to the decoupling-extended lifetime of charging through resonant electron tunneling at the topological end states. In combination with theoretical calculations, we assign the vibronic progressions to specific vibrational modes that mediate the vibronic excitations. The spatial distribution of each resolved excitation shows evident characteristics beyond the conventional Franck-Condon picture. Our work by direct growth of second-layer GNRs provides an effective way to explore the interplay between the intrinsic electronic, vibrational, and topological properties.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos

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