Recent developments concerning the sputter growth of chalcogenide-based layered phase-change materials

Y Saito, M Morota, K Makino, J Tominaga… - Materials Science in …, 2021 - Elsevier
This paper reviews recent developments in the sputter growth of chalcogenide thin films for
phase-change memory applications. We focus primarily on the growth of highly oriented Sb …

High-throughput screening to identify two-dimensional layered phase-change chalcogenides for embedded memory applications

S Sun, X Wang, Y Jiang, Y Lei, S Zhang… - npj Computational …, 2024 - nature.com
Chalcogenide phase-change materials (PCMs) are showing versatile possibilities in cutting-
edge applications, including non-volatile memory, neuromorphic computing, and nano …

Amorphous-to-Crystal Transition in Quasi-Two-Dimensional MoS2: Implications for 2D Electronic Devices

M Krbal, V Prokop, AA Kononov… - ACS Applied Nano …, 2021 - ACS Publications
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) have demonstrated a very
strong application potential. In order to realize it, the synthesis of stoichiometric 2D TMDCs …

NbTe4 Phase‐Change Material: Breaking the Phase‐Change Temperature Balance in 2D Van der Waals Transition‐Metal Binary Chalcogenide

Y Shuang, Q Chen, M Kim, Y Wang, Y Saito… - Advanced …, 2023 - Wiley Online Library
Abstract 2D van der Waals (vdW) transition metal di‐chalcogenides (TMDs) have garnered
significant attention in the nonvolatile memory field for their tunable electrical properties …

Anomalous electrical conductivity change in MoS2 during the transition from the amorphous to crystalline phase

M Krbal, J Prikryl, I Pis, V Prokop, JR Pereira… - Ceramics …, 2023 - Elsevier
Transition metal dichalcogenides exhibit unique properties, which make them interesting for
fundamental studies and for applications in many devices. Here, we report on the …

Phase control of sputter-grown large-area MoTe2 films by preferential sublimation of Te: amorphous, 1T′ and 2H phases

S Hatayama, Y Saito, K Makino, N Uchida… - Journal of Materials …, 2022 - pubs.rsc.org
Sputter-grown amorphous Mo–Te films were annealed to obtain the crystalline phase.
Although as-deposited films exhibited an off-stoichiometric Te-rich composition, optimized …

Origins of midgap states in Te-based Ovonic threshold switch materials

S Hatayama, Y Saito, P Fons, Y Shuang, M Kim… - Acta Materialia, 2023 - Elsevier
The non-linear threshold-type current-voltage behavior that characterizes selector devices
for three-dimensional (3D) crossbar-type nonvolatile memory devices relies upon a …

Understanding the Origin of Low-Energy Operation Characteristics for Cr2Ge2Te6 Phase-Change Material: Enhancement of Thermal Efficiency in the High-Scaled …

S Hatayama, T Yamamoto, S Mori… - … applied materials & …, 2022 - ACS Publications
Data recording based on the phase transition between amorphous and crystalline phases in
a phase-change material (PCM) generally consumes a large amount of operation energy …

Spin Glass Behavior in Amorphous Cr2Ge2Te6 Phase‐Change Alloy

X Wang, S Sun, JJ Wang, S Li, J Zhou… - Advanced …, 2023 - Wiley Online Library
The layered crystal structure of Cr2Ge2Te6 shows ferromagnetic ordering at the two‐
dimensional limit, which holds promise for spintronic applications. However, external voltage …

Dimensional transformation of chemical bonding during crystallization in a layered chalcogenide material

Y Saito, S Hatayama, Y Shuang, P Fons, AV Kolobov… - Scientific reports, 2021 - nature.com
Abstract Two-dimensional (2D) van der Waals (vdW) materials possess a crystal structure in
which a covalently-bonded few atomic-layer motif forms a single unit with individual motifs …