Phase‐Change Superlattice Materials toward Low Power Consumption and High Density Data Storage: Microscopic Picture, Working Principles, and Optimization

XB Li, NK Chen, XP Wang… - Advanced Functional …, 2018 - Wiley Online Library
To meet the requirement of big data era and neuromorphic computations, nonvolatile
memory with fast speed, high density, and low power consumption is urgently needed. As an …

Challenges for developing photo-induced phase transition (PIPT) systems: from classical (incoherent) to quantum (coherent) control of PIPT dynamics

S Koshihara, T Ishikawa, Y Okimoto, K Onda, R Fukaya… - Physics Reports, 2022 - Elsevier
This work reviews the experimental studies on photo-induced cooperative phenomena
(photo-induced phase transitions, PIPT), which are related to ultrafast structural and …

Interfacial phase-change memory

RE Simpson, P Fons, AV Kolobov, T Fukaya… - Nature …, 2011 - nature.com
Phase-change memory technology relies on the electrical and optical properties of certain
materials changing substantially when the atomic structure of the material is altered by …

Visible-near infrared ultra-broadband polarization-independent metamaterial perfect absorber involving phase-change materials

X Tian, ZY Li - Photonics Research, 2016 - opg.optica.org
We numerically demonstrate a novel ultra-broadband polarization-independent
metamaterial perfect absorber in the visible and near-infrared region involving the phase …

Enhancement in thermoelectric properties of Te-embedded Bi2Te3 by preferential phonon scattering in heterostructure interface

H Choi, K Jeong, J Chae, H Park, J Baeck, TH Kim… - Nano Energy, 2018 - Elsevier
A comprehensive understanding of the nano-structural effects that cause reduction in
thermal conductivity represents important challenges for the development of thermoelectric …

Distortion-triggered loss of long-range order in solids with bonding energy hierarchy

AV Kolobov, M Krbal, P Fons, J Tominaga, T Uruga - Nature chemistry, 2011 - nature.com
An amorphous-to-crystal transition in phase-change materials like Ge–Sb–Te is widely used
for data storage. The basic principle is to take advantage of the property contrast between …

Active control of surface plasmon waveguides with a phase change material

M Rudé, RE Simpson, R Quidant, V Pruneri… - Acs …, 2015 - ACS Publications
The ability to manipulate light propagation at the nanoscale is of vital importance for future
integrated photonic circuits. In this work we exploit the high contrast in the optical properties …

Rapid phase transition of a phase-change metamaterial perfect absorber

T Cao, C Wei, RE Simpson, L Zhang… - Optical Materials …, 2013 - opg.optica.org
Phase-change materials (PCMs) have great potential in applications for data storage, optical
switching and tunable photonic devices. However, heating the whole of the phase change …

Comparison of the phase change process in a GST-loaded silicon waveguide and MMI

H Zhang, X Yang, L Lu, J Chen, BMA Rahman… - Optics …, 2021 - opg.optica.org
In the past decades, silicon photonic integrated circuits (PICs) have been considered a
promising approach to solve the bandwidth bottleneck in optical communications and …

Femtosecond structural transformation of phase-change materials far from equilibrium monitored by coherent phonons

M Hase, P Fons, K Mitrofanov, AV Kolobov… - Nature …, 2015 - nature.com
Multicomponent chalcogenides, such as quasi-binary GeTe–Sb2Te3 alloys, are widely used
in optical data storage media in the form of rewritable optical discs. Ge2Sb2Te5 (GST) in …