Time-dependent universal conductance fluctuations in IrO2 nanowires

Lin, Yong-Han; Wang, Lu-Yao; Lin, Juhn‐Jong

doi:10.1186/1556-276x-7-673

Cited by 2 publications

(1 citation statement)

References 28 publications

(50 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Closer to established mesoscopic quantum coherence effects in metallic nanowires, Chien et al [202] and Lin et al [203] demonstrated quantum interference effects in IrO 2 nanowires that were annealed in vacuum to generate O vacancies. Noise measurements in electronic transport from 1.7 K to 350 K show an increase in 1/f noise for T < 20 K due to time-dependent universal conductance fluctuations (UCFs, here TUCFs) generated by scattering off mobile defects in the nanowires.…”

Section: Thin Film Electrical Transport Propertiesmentioning

confidence: 99%

Recent progress on topological semimetal IrO₂: electronic structures, synthesis, and transport properties

Zhang,

Coughlin,

et al. 2024

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

5d transition metal oxides, such as iridates, have attracted significant interest in condensed matter physics throughout the past decade owing to their fascinating physical properties that arise from intrinsically strong spin-orbit coupling (SOC) and its interplay with other interactions of comparable energy scales. Among the rich family of iridates, iridium dioxide (IrO2), a simple binary compound long known as a promising catalyst for water splitting, has recently been demonstrated to possess novel topological states and exotic transport properties. The strong SOC and the nonsymmorphic symmetry that IrO2 possesses introduce symmetry-protected Dirac nodal lines (DNLs) within its band structure as well as a large spin Hall effect in the transport. Here, we review recent advances pertaining to the study of this unique SOC oxide, with an emphasis on the understanding of the topological electronic structures, syntheses of high crystalline quality nanostructures, and experimental measurements of its fundamental transport properties. In particular, the theoretical origin of the presence of the fourfold degenerate DNLs in band structure and its implications in the angle-resolved photoemission spectroscopy measurement and in the spin Hall effect are discussed. We further introduce a variety of synthesis techniques to achieve IrO2 nanostructures, such as epitaxial thin films and single crystalline nanowires, with the goal of understanding the roles that each key parameter plays in the growth process. Finally, we review the electrical, spin, and thermal transport studies. The transport properties under variable temperatures and magnetic fields reveal themselves to be uniquely sensitive and modifiable by strain, dimensionality (bulk, thin film, nanowire), quantum confinement, film texture, and disorder. The sensitivity, stemming from the competing energy scales of SOC, disorder, and other interactions, enables the creation of a variety of intriguing quantum states of matter.

show abstract

Section: Thin Film Electrical Transport Propertiesmentioning

confidence: 99%

Recent progress on topological semimetal IrO₂: electronic structures, synthesis, and transport properties

Zhang,

Coughlin,

et al. 2024

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

Fabrication and characterization of Ti/TiN- based resistance temperature detector

Filali,

Haridi,

Garoudja

et al. 2023

2023 20th International Multi-Conference on Systems, Signals &Amp; Devices (SSD)

View full text Add to dashboard Cite

Time-dependent universal conductance fluctuations in IrO2 nanowires

Cited by 2 publications

References 28 publications

Recent progress on topological semimetal IrO₂: electronic structures, synthesis, and transport properties

Recent progress on topological semimetal IrO₂: electronic structures, synthesis, and transport properties

Fabrication and characterization of Ti/TiN- based resistance temperature detector

Contact Info

Product

Resources

About

Time-dependent universal conductance fluctuations in IrO2 nanowires

Cited by 2 publications

References 28 publications

Recent progress on topological semimetal IrO2: electronic structures, synthesis, and transport properties

Recent progress on topological semimetal IrO2: electronic structures, synthesis, and transport properties

Fabrication and characterization of Ti/TiN- based resistance temperature detector

Contact Info

Product

Resources

About

Recent progress on topological semimetal IrO₂: electronic structures, synthesis, and transport properties

Recent progress on topological semimetal IrO₂: electronic structures, synthesis, and transport properties