Nature of the 1/f noise in graphene—direct evidence for the mobility fluctuation mechanism

A Rehman, JAD Notario, JS Sanchez, YM Meziani… - Nanoscale, 2022 - pubs.rsc.org
The nature of the low-frequency 1/f noise in electronic materials and devices is one of the
oldest unsolved physical problems (f is the frequency). The fundamental question of the …

Electrical Low-Frequency 1/fγ Noise Due to Surface Diffusion of Scatterers on an Ultra-low-Noise Graphene Platform

M Kamada, A Laitinen, W Zeng, M Will, J Sarkar… - Nano Letters, 2021 - ACS Publications
Low-frequency 1/f γ noise is ubiquitous, even in high-end electronic devices. Recently, it
was found that adsorbed O2 molecules provide the dominant contribution to flux noise in …

Hydrodynamic thermoelectric transport in Corbino geometry

S Li, A Levchenko, AV Andreev - Physical Review B, 2022 - APS
We study hydrodynamic electron transport in Corbino graphene devices. Due to the
irrotational character of the flow, the forces exerted on the electron liquid are expelled from …

Observation of electronic viscous dissipation in graphene magneto-thermal transport

A Talanov, J Waissman, A Hui, B Skinner… - arxiv preprint arxiv …, 2024 - arxiv.org
Hydrodynamic transport effectively describes the collective dynamics of fluids with well-
defined thermodynamic quantities. With enhanced electron-electron interactions at elevated …

Electronic viscosity and energy relaxation in neutral graphene

V Gall, BN Narozhny, IV Gornyi - Physical Review B, 2023 - APS
We explore hydrodynamics of Dirac fermions in neutral graphene in the Corbino geometry.
In the absence of a magnetic field, the bulk Ohmic charge flow and the hydrodynamic energy …

Suppression of 1/f noise in graphene due to anisotropic mobility fluctuations induced by impurity motion

M Kamada, W Zeng, A Laitinen, J Sarkar… - Communications …, 2023 - nature.com
Low frequency resistance variations due to mobility fluctuations is one of the key factors of
1/f noise in metallic conductors. According to theory, such noise in a two-dimensional (2D) …

Hydrodynamic magnetoresistance in graphene Corbino devices

A Levchenko, S Li, AV Andreev - Physical Review B, 2022 - APS
We study hydrodynamic electron magnetotransport in graphene devices. We show that in
these systems a distinct mechanism of magnetoresistance appears which is absent in …

Corbino magnetoresistance in neutral graphene

V Gall, BN Narozhny, IV Gornyi - Physical Review B, 2023 - APS
We explore the magnetohydrodynamics of Dirac fermions in neutral graphene in the
Corbino geometry. Based on the fully consistent hydrodynamic description derived from a …

Sub-Sharvin conductance and incoherent shot-noise in graphene disks at magnetic field

A Rycerz, K Rycerz, P Witkowski - Materials, 2024 - mdpi.com
Highly doped graphene samples show reduced conductance and enhanced shot-noise
power compared with standard ballistic systems in two-dimensional electron gas. These …

Impurity Level-Induced Broadband Photoelectric Response in Wide-Bandgap Semiconductor SrSnO3

Y Zhang, L Wang, W Wu, Z Wang, F Sun… - … Applied Materials & …, 2024 - ACS Publications
Broadband spectrum detectors exhibit great promise in fields such as multispectral imaging
and optical communications. Despite significant progress, challenges like materials …