Significant modulation of acoustoelectric current associated with charge density wave transitions
Natsumi Nikaido, Takuya Kawada, Koji Fujiwara, Jihoon Park, Nan Jiang, Kouta Kondou, Shintaro Takada, Yasuhiro Niimi
Abstract
We studied acoustoelectric (AE) currents in materials that undergo charge density wave (CDW) transitions, induced by a surface acoustic wave (SAW) on a piezoelectric substrate. The polarity and magnitude of the AE current in NbSe3 and 2H-TaSe2 were modulated due to their CDW transitions. We also found that the sign of the AE current depends on the SAW propagation direction with respect to the crystalline axis of the substrate.A phenomenological model assuming strain-modified conductivity can qualitatively account for the significant modulation of the AE current associated with the CDW transition, as well as the SAW propagation orientation dependence. The present results offer a powerful probe for exploring SAW-electron interactions in van der Waals materials, thereby highlighting their potential for advancing the emerging field of straintronics.
Create a lesson
Related papers
Layer-Dependent Vibrational and Optical Properties of Mo0.58W0.42Se2 Alloy
Szymon Socha, Tomasz Wozniak, Elena Blundo et al.
Chiral classical and quantum acoustics with hole-spin qubits
Zhanning Wang, Yongtao Li, Nelson E. Rivas et al.
Fröhlich Bipolarons in Two-Dimensional Materials
A. Kudlis, V. Shahnazaryan, I. Iorsh et al.
Altermagnetic Magnons in Dipolar Nanomagnet Arrays
Rhea Hoyer, Ephraim Spindler, Lukas Körber et al.
Tuneable terahertz transitions in zigzag graphene nanoribbons
R. R. Hartmann, M. E. Portnoi
Landscape geometry of Majorana zero modes in inhomogeneous superconductors
Guo-Jian Qiao, Zhi-Lei Zhang, Kang Xu et al.