Indexed by: Journal paper

First Author: TONG HAO

Correspondence Author: 缪向水

Co-author: 王嘉慧,童非,Sun.J.J,张乐,Wang.H,程晓敏

Journal: Applied Physics Letters

Affiliation of Author(s): 华中科技大学

Discipline: Engineering

First-Level Discipline: Electronic Science And Technology

Document Type: J

Volume: 98

Issue: 10

Page Number: 101904

DOI number: 10.1063/1.3562610

Date of Publication: 4060-09-01

Abstract: Thermal conductivity of chalcogenide material with superlatticelike (SLL) structure is investigated using the 3ω method and the molecular dynamics method. Both the measured and calculated results show that the thermal conductivity of SLL is lower than those of conventional chalcogenide materials and will decrease to a minimum as the number of interfaces increases. The Raman spectrum is introduced to study the phonon behavior of SLL and the “phonon mode vanishing” is proposed to explain its lower thermal conductivity. Finite-element analysis and phase change memory cell testing confirm the enhancement of cell performance for SLL with minimum thermal conductivity.

Links to published journals: https://pubs.aip.org/aip/apl/article/98/10/101904/122129/Thermal-conductivity-of-chalcogenide-material-with