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13 - Electrical and Electronic Engineering, Metallurgy and Materials

University of Cambridge

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Article title

Characterization of supercooled liquid Ge2Sb2Te5 and its crystallization by ultrafast-heating calorimetry

Type

D - Journal article

DOI

10.1038/nmat3275

Title of journal

Nature Materials

Article number

Volume number

Issue number

First page of article

279

ISSN of journal

1476-4660

Year of publication

2012

URL

Number of additional authors

Additional information

Phase-change (glass/crystal) materials are a likely basis of new-generation non-volatile memory with low energy consumption and excellent scalability. Fast (1-100ns) crystallization (erasure) must co-exist with stability of written glassy marks. The innovation in this work is ultrafast DSC, achieving the first self-consistent description of crystallization kinetics over the entire relevant temperature range. Wuttig & Salinga [News&Views, NatureMater 11(2012)270] comment: this “certainly marks the beginning of more systematic studies of fast-crystallization”, and this study of phase-change materials “suggests a profound new insight into their fundamental properties”. Resulting conference invitations: EPCOS 2012, ISMANAM 2012, Laenwitzseminar 2012, MRS Spring 2013, TMS 2013).

Interdisciplinary

Cross-referral requested

Research group

None

Proposed double-weighted

Double-weighted statement

Reserve for a double-weighted output

Non-English

English abstract