Effect of ion irradiation on the stability of amorphous Ge2Sb2Te5 thin films

作者: R. De Bastiani , A.M. Piro , I. Crupi , M.G. Grimaldi , E. Rimini

DOI: 10.1016/J.NIMB.2008.03.037

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摘要: Abstract The archival life of phase-change memories (PCM) is determined by the thermal stability amorphous phase in a crystalline matrix. In this paper, we report effect ion beam irradiation on crystallization kinetics Ge2Sb2Te5 alloy (GST). transition rate GST films was measured situ time resolved reflectivity (TRR). to crystal transformation decreases considerably irradiated samples when fluence increases. thin subjected discussed terms free energy variation state because damage accumulation.

参考文章(8)
Noboru Yamada, Toshiyuki Matsunaga, Structure of laser-crystallized Ge2Sb2+xTe5 sputtered thin films for use in optical memory Journal of Applied Physics. ,vol. 88, pp. 7020- 7028 ,(2000) , 10.1063/1.1314323
M. Mayer, SIMNRA, a simulation program for the analysis of NRA, RBS and ERDA The fifteenth international conference on the application of accelerators in research and industry. ,vol. 475, pp. 541- 544 ,(1999) , 10.1063/1.59188
Martijn H. R. Lankhorst, Bas W. S. M. M. Ketelaars, R. A. M. Wolters, Low-cost and nanoscale non-volatile memory concept for future silicon chips. Nature Materials. ,vol. 4, pp. 347- 352 ,(2005) , 10.1038/NMAT1350
Matthias Wuttig, Phase-change materials: towards a universal memory? Nature Materials. ,vol. 4, pp. 265- 266 ,(2005) , 10.1038/NMAT1359
Wojciech Wełnic, Ariesto Pamungkas, Ralf Detemple, Christoph Steimer, Stefan Blügel, Matthias Wuttig, Unravelling the interplay of local structure and physical properties in phase-change materials Nature Materials. ,vol. 5, pp. 56- 62 ,(2006) , 10.1038/NMAT1539
Toshiyuki Matsunaga, Noboru Yamada, A Study of Highly Symmetrical Crystal Structures, Commonly Seen in High-Speed Phase-Change Materials, Using Synchrotron Radiation Japanese Journal of Applied Physics. ,vol. 41, pp. 1674- 1678 ,(2002) , 10.1143/JJAP.41.1674
Corrado Spinella, Salvatore Lombardo, Francesco Priolo, Crystal grain nucleation in amorphous silicon Journal of Applied Physics. ,vol. 84, pp. 5383- 5414 ,(1998) , 10.1063/1.368873
Alexander V. Kolobov, Paul Fons, Anatoly I. Frenkel, Alexei L. Ankudinov, Junji Tominaga, Tomoya Uruga, Understanding the phase-change mechanism of rewritable optical media Nature Materials. ,vol. 3, pp. 703- 708 ,(2004) , 10.1038/NMAT1215