4.5 Article

Passivation of Bi2Te3 Topological Insulator by Transferred CVD-Graphene: Toward Intermixing-Free Interfaces

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

Large Spin-to-Charge Conversion at Room Temperature in Extended Epitaxial Sb2Te3 Topological Insulator Chemically Grown on Silicon

Emanuele Longo et al.

Summary: Research on spin-charge interconversion at the interface between magnetic materials and topological insulators has shown an enhanced charge current in Sb2Te3 TIs structures. The results indicate a potential for future technology development with a 250% increase in spin pumping efficiency in this structure.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Materials Science, Multidisciplinary

Ultrafast Spin-Charge Conversion at SnBi2Te4/Co Topological Insulator Interfaces Probed by Terahertz Emission Spectroscopy

E. Rongione et al.

Summary: This study demonstrates sizable terahertz (THz) emission through a nanometric thick topological insulator (TI)/ferromagnetic junction. By employing terahertz emission time domain spectroscopy (TDS), the contribution of topological surface states (TSS) to spin-to-charge conversion (SCC) is investigated, highlighting the significance of this approach for studying interfacial spintronic properties.

ADVANCED OPTICAL MATERIALS (2022)

Article Chemistry, Multidisciplinary

Almost Perfect Spin Filtering in Graphene-Based Magnetic Tunnel Junctions

Victor Zatko et al.

Summary: This study reports on the significant spin-filtering effects in epitaxial graphene-based spin valves, particularly enhanced in the case of multilayer graphene. The combination of chemical vapor deposited multilayer graphene with high-quality epitaxial Ni(111) ferromagnetic spin source led to the obtained results. Complete nanometric spin valve junctions were fabricated using a local probe indentation process, and spin properties were extracted from the graphene-protected ferromagnetic electrode using a reference Al2O3/Co spin analyzer. The study discusses the emerging physical picture of graphene-ferromagnet systems and provides insight into the efficient spin filtering effects and the interfacial matching of the graphene layers with the spin-polarized Ni surface, showcasing the potential of low Resistance-Area (RA) graphene interfaces in spin-based devices.

ACS NANO (2022)

Article Chemistry, Multidisciplinary

Combined spin filtering actions in hybrid magnetic junctions based on organic chains covalently attached to graphene

Pascal Martin et al.

Summary: A bias-controlled spin-filtering mechanism is presented in spin-valves with a hybrid organic chain/graphene interface. The use of a protective graphene layer preserves the metallic character of the ferromagnetic surface and its capability to deliver spin polarized currents. Experimental observations and first-principles calculations reveal the bias-dependent switch of the spin signal, which is attributed to the spin-dependent hybridization of electronic states at different interfaces.

NANOSCALE (2022)

Article Chemistry, Physical

Germanium, antimony, tellurium, their binary and ternary alloys and the impact of nitrogen: An X-ray photoelectron study

E. Nolot et al.

Summary: The structural features and electrical properties of thin materials developed for phase change memory are highly influenced by stoichiometry and binding states. Chemical state X-ray photoelectron spectroscopic analysis of materials such as GeTe, Sb2Te3, and GST is challenging due to overlapping binding energies when samples are exposed to air. Quasi in situ XPS has been used to characterize PCM materials and investigate the influence of nitrogen and air exposure on their binding states.

APPLIED SURFACE SCIENCE (2021)

Article Nanoscience & Nanotechnology

Ex Situ Photoelectron Emission Microscopy of Polycrystalline Bismuth and Antimony Telluride Surfaces Exposed to Ambient Oxidation

Peter A. Sharma et al.

Summary: PEEM was used to investigate the surfaces of textured polycrystalline N-type bismuth telluride and P-type antimony telluride materials, showing changes in work function with exposure to air and the formation of oxide layers. The observed work function contrast is attributed to the pinning of electronic surface states due to defects at grain boundaries.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Multidisciplinary

Spin-Charge Conversion in Fe/Au/Sb2Te3 Heterostructures as Probed By Spin Pumping Ferromagnetic Resonance

Emanuele Longo et al.

Summary: Large-area antimony telluride (Sb2Te3) thin films were grown using metal organic chemical vapor deposition technique, and their interaction with Fe thin films resulted in an increase in the damping parameter, suggesting the occurrence of spin pumping. Introducing a 5 nm Au interlayer between Fe and Sb2Te3 led to the development of a spin pumping signal, indicating the absence of spin-to-charge conversion in Fe/Sb2Te3. This study sheds light on the correlation among the chemical-structural-magnetic properties of the Fe/Sb2Te3 interface.

ADVANCED MATERIALS INTERFACES (2021)

Article Nanoscience & Nanotechnology

Control of spin-charge conversion in van der Waals heterostructures

Regina Galceran et al.

Summary: The interconversion between spin and charge degrees of freedom in van der Waals materials offers incredible potential for spintronic devices, especially with the emergence of materials possessing large spin-orbit coupling and layered ferromagnets. There is abundant room for progress in discovering and analyzing novel spin-charge interconversion phenomena, as well as exploring modifying properties through proximity effects. Recent advances in techniques for large-scale growth, device physics, and theoretical aspects have significantly contributed to the field.

APL MATERIALS (2021)

Review Nanoscience & Nanotechnology

Van der Waals heterostructures for spintronics and opto-spintronics

Juan F. Sierra et al.

Summary: The diverse set of 2D materials and their co-integration in van der Waals heterostructures enable innovative material design and device engineering. This Review summarizes recent advances in 2D spintronics and opto-spintronics, the underlying physical concepts, and future perspectives of the field.

NATURE NANOTECHNOLOGY (2021)

Article Nanoscience & Nanotechnology

Enhancement of spin-to-charge conversion efficiency in topological insulators by interface engineering

Haoran He et al.

Summary: This study investigates the spin-to-charge conversion efficiency in topological insulator heterostructures, finding that the insertion of Ru can enhance the efficiency due to its high electronegativity, while Ti insertion does not have the same effect. Additionally, perpendicular magnetic anisotropy field and magnetic damping are observed in BST/CoFeB samples, attributed to the interfacial spin-orbit coupling between BST and CoFeB. This research provides insights into enhancing lambda(IEE) and understanding charge-to-spin conversion in TI-based systems.

APL MATERIALS (2021)

Article Chemistry, Multidisciplinary

Control of Spin-Orbit Torques by Interface Engineering in Topological Insulator Heterostructures

Frederic Bonell et al.

NANO LETTERS (2020)

Article Multidisciplinary Sciences

Gate-tunable spin-galvanic effect in graphene-topological insulator van der Waals heterostructures at room temperature

Dmitrii Khokhriakov et al.

NATURE COMMUNICATIONS (2020)

Article Physics, Applied

Interfacial spin-orbit torques

V. P. Amin et al.

JOURNAL OF APPLIED PHYSICS (2020)

Review Engineering, Electrical & Electronic

Opportunities and challenges for spintronics in the microelectronics industry

B. Dieny et al.

NATURE ELECTRONICS (2020)

Article Multidisciplinary Sciences

Spin filtering by proximity effects at hybridized interfaces in spin-valves with 2D graphene barriers

Maelis Piquemal-Banci et al.

NATURE COMMUNICATIONS (2020)

Article Physics, Applied

Recovery of surface state bands after desorption of Te capping layer on (Bi1-xSbx)2Te3 ternary topological insulators

Eoffroy Kremer et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2019)

Article Chemistry, Multidisciplinary

Spin Proximity Effects in Graphene/Topological Insulator Heterostructures

Kenan Song et al.

NANO LETTERS (2018)

Article Chemistry, Multidisciplinary

Heterostructured ferromagnet-topological insulator with dual-phase magnetic properties

Shu-Jui Chang et al.

RSC ADVANCES (2018)

News Item Chemistry, Physical

SPINTRONICS Switching by topological insulators

Chi-Feng Pai

NATURE MATERIALS (2018)

Article Materials Science, Multidisciplinary

Proximity-induced spin-orbit coupling in graphene/Bi1.5Sb0.5Te1.7Se1.3 heterostructures

S. Jafarpisheh et al.

PHYSICAL REVIEW B (2018)

Article Materials Science, Multidisciplinary

Giant Edelstein effect in topological-insulator-graphene heterostructures

M. Rodriguez-Vega et al.

PHYSICAL REVIEW B (2017)

Article Chemistry, Multidisciplinary

Growth of Twin-Free and Low-Doped Topological Insulators on BaF2(111)

Frederic Bonell et al.

CRYSTAL GROWTH & DESIGN (2017)

Article Materials Science, Coatings & Films

Surface oxidation of the topological insulator Bi2Se3

Avery J. Green et al.

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A (2016)

Article Chemistry, Multidisciplinary

Proximity Effect Induced Electronic Properties of Graphene on Bi2Te2Se

Paengro Lee et al.

ACS NANO (2015)

Article Chemistry, Multidisciplinary

Long-Term Passivation of Strongly Interacting Metals with Single-Layer Graphene

Robert S. Weatherup et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

Article Chemistry, Multidisciplinary

Complete Corrosion Inhibition through Graphene Defect Passivation

Ya-Ping Hsieh et al.

ACS NANO (2014)

Article Chemistry, Multidisciplinary

Graphene as an atomically thin barrier to Cu diffusion into Si

Juree Hong et al.

NANOSCALE (2014)

Article Materials Science, Multidisciplinary

Fermi-level pinning, charge transfer, and relaxation of spin-momentum locking at metal contacts to topological insulators

Catalin D. Spataru et al.

PHYSICAL REVIEW B (2014)

Article Physics, Multidisciplinary

Proximity Effect in Graphene-Topological-Insulator Heterostructures

Junhua Zhang et al.

PHYSICAL REVIEW LETTERS (2014)

Article Chemistry, Multidisciplinary

Enhanced Room-Temperature Corrosion of Copper in the Presence of Graphene

Feng Zhou et al.

ACS NANO (2013)

Article Chemistry, Multidisciplinary

Graphene as a Long-Term Metal Oxidation Barrier: Worse Than Nothing

Maria Schriver et al.

ACS NANO (2013)

Article Nanoscience & Nanotechnology

Effects of multi-layer graphene capping on Cu interconnects

Chang Goo Kang et al.

NANOTECHNOLOGY (2013)

Article Multidisciplinary Sciences

Chemical vapour deposition growth of large single crystals of monolayer and bilayer graphene

Hailong Zhou et al.

NATURE COMMUNICATIONS (2013)

Article Chemistry, Multidisciplinary

Graphene-Passivated Nickel as an Oxidation-Resistant Electrode for Spintronics

Bruno Dlubak et al.

ACS NANO (2012)

Article Chemistry, Multidisciplinary

Graphene: Corrosion-Inhibiting Coating

Dhiraj Prasai et al.

ACS NANO (2012)

Article Chemistry, Multidisciplinary

Robust Surface Doping of Bi2Se3 by Rubidium Intercalation

Marco Bianchi et al.

ACS NANO (2012)

Article Engineering, Electrical & Electronic

Graphene as a diffusion barrier for Al and Ni/Au contacts on silicon

Hong-Yeol Kim et al.

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B (2012)

Article Chemistry, Multidisciplinary

Rapid Surface Oxidation as a Source of Surface Degradation Factor for Bi2Se3

Desheng Kong et al.

ACS NANO (2011)

Article Chemistry, Multidisciplinary

Oxidation Resistance of Graphene-Coated Cu and Cu/Ni Alloy

Shanshan Chen et al.

ACS NANO (2011)

Article Multidisciplinary Sciences

Coexistence of the topological state and a two-dimensional electron gas on the surface of Bi2Se3

Marco Bianchi et al.

NATURE COMMUNICATIONS (2010)

Article Physics, Applied

A possible source of spin-polarized electrons: The inert graphene/Ni(111) system

Yu. S. Dedkov et al.

APPLIED PHYSICS LETTERS (2008)

Article Chemistry, Multidisciplinary

Impermeable atomic membranes from graphene sheets

J. Scott Bunch et al.

NANO LETTERS (2008)

Review Physics, Multidisciplinary

Spintronics: Fundamentals and applications

I Zutic et al.

REVIEWS OF MODERN PHYSICS (2004)