Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Conductance Quantization in 2D Semi‐Metallic Transition Metal Dichalcogenides
AU - Lu, Zhixing
AU - Hou, Songjun
AU - Lin, Rongjian
AU - Shi, Jie
AU - Wu, Qingqing
AU - Lin, Luchun
AU - Shi, Jia
AU - Yang, Yang
AU - Lambert, Colin
AU - Hong, Wenjing
PY - 2024/4/29
Y1 - 2024/4/29
N2 - Conductance quantization of 2D materials is significant for understanding the charge transport at the atomic scale, which provides a platform to manipulate the quantum states, showing promising applications for nanoelectronics and memristors. However, the conventional methods for investigating conductance quantization are only applicable to materials consisting of one element, such as metal and graphene. The experimental observation of conductance quantization in transition metal dichalcogenides (TMDCs) with complex compositions and structures remains a challenge. To address this issue, an approach is proposed to characterize the charge transport across a single atom in TMDCs by integrating in situ synthesized 1T’‐WTe2 electrodes with scanning tunneling microscope break junction (STM‐BJ) technique. The quantized conductance of 1T’‐WTe2 is measured for the first time, and the quantum states can be modulated by stretching speed and solvent. Combined with theoretical calculations, the evolution of quantized and corresponding configurations during the break junction process is demonstrated. This work provides a facile and reliable avenue to characterize and modulate conductance quantization of 2D materials, intensively expanding the research scope of quantum effects in diverse materials.
AB - Conductance quantization of 2D materials is significant for understanding the charge transport at the atomic scale, which provides a platform to manipulate the quantum states, showing promising applications for nanoelectronics and memristors. However, the conventional methods for investigating conductance quantization are only applicable to materials consisting of one element, such as metal and graphene. The experimental observation of conductance quantization in transition metal dichalcogenides (TMDCs) with complex compositions and structures remains a challenge. To address this issue, an approach is proposed to characterize the charge transport across a single atom in TMDCs by integrating in situ synthesized 1T’‐WTe2 electrodes with scanning tunneling microscope break junction (STM‐BJ) technique. The quantized conductance of 1T’‐WTe2 is measured for the first time, and the quantum states can be modulated by stretching speed and solvent. Combined with theoretical calculations, the evolution of quantized and corresponding configurations during the break junction process is demonstrated. This work provides a facile and reliable avenue to characterize and modulate conductance quantization of 2D materials, intensively expanding the research scope of quantum effects in diverse materials.
U2 - 10.1002/smll.202311491
DO - 10.1002/smll.202311491
M3 - Journal article
JO - Small
JF - Small
SN - 1613-6810
ER -