TITLE

Identification of Te alloys with suitable phase change characteristics

AUTHOR(S)
Detemple, Ralf; Wamwangi, Daniel; Wuttig, Matthias; Bihlmayer, Gustav
PUB. DATE
September 2003
SOURCE
Applied Physics Letters;9/29/2003, Vol. 83 Issue 13, p2572
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
At present, the discovery and development of phase change materials is mainly based upon empirical strategies and trial and error approaches. Here, we present a structural criterion that needs to be met to enable the mandatory fast recrystallization with sufficient optical contrast that characterizes suitable phase change materials. Comparing the behavior of AgInTe[sub 2] and AgSbTe[sub 2] films it is demonstrated that only the AgSbTe[sub 2] films, which show a cubic coordination, have sufficient density contrast, and hence, also optical contrast to allow phase change recording. © 2003 American Institute of Physics.
ACCESSION #
10894465

 

Related Articles

  • Phase transformation kinetics—the role of laser power and pulse width in the phase change cycling of Te alloys. Rubin, K. A.; Barton, R. W.; Chen, M.; Jipson, V. B.; Rugar, D. // Applied Physics Letters;5/25/1987, Vol. 50 Issue 21, p1488 

    The effect of laser pulse width and amplitude on the kinetics of laser-induced phase transformations of thin films of Te alloys has been mapped. This map, called a phase transformation kinetics diagram, shows distinct regions of crystallization and amorphization and allows important material...

  • Thermal conductivities and conduction mechanisms of Sb-Te Alloys at high temperatures. Lan, Rui; Endo, Rie; Kuwahara, Masashi; Kobayashi, Yoshinao; Susa, Masahiro // Journal of Applied Physics;Jul2011, Vol. 110 Issue 2, p023701 

    Sb-Te alloys have drawn much attention due to its application in phase change memory as well as the unique properties as chalcogenide. In this work, the thermal conductivities of Sb-x mol%Te alloys (x = 14, 25, 44, 60, 70, and 90) have been measured by the hot strip method from room temperature...

  • Information storage: Around the phase-change cycle. Kolobov, Alexander V. // Nature Materials;May2008, Vol. 7 Issue 5, p351 

    The author presents his view on phase-change materials, which is commonly reserved for tellurium-based compounds. The materials have seen widespread commercialization in data-storage applications. It is a new generation of optical disks, the so-called super-resolution near-field structure disks....

  • A Study on Phases Change of Ti-Mn Alloys Produced by Metal Injection Molding. Gouda, Mohammed K.; Gepreel, Mohamed A. H.; El Moniem, A. Abd // AIP Conference Proceedings;Dec2013, Vol. 1569 Issue 1, p203 

    The phases change of a set of Ti-Mn alloys produced by powder metal injection molding technique (MIM) is studied in the present work. The materials were received in the as sintered condition (1100 °C for 8 hours), then subjected to solution treatment and aging. In the as sintered condition,...

  • Effects of Mg-Doping on Tetragonal Phase and Superconductivity in FeTeSe. Lee, W.; Chen, S.; Liang, S.; Lan, M. // Journal of Superconductivity & Novel Magnetism;Jan2016, Vol. 29 Issue 1, p101 

    As revealed in the x-ray-powder patterns and crystallographic data, the primitive tetragonal structure of FeTe is retained in MgFeTeSe up to the solubility limit near x = 0.5. The excess Mg in MgFeTeSe is found to be able to stabilize the PbO-type crystal structure with space group P4/nmm. The...

  • Experimental confirmation of universality for a phase transition in two dimensions. Back, C.H.; Wursch, Ch. // Nature;12/7/1995, Vol. 378 Issue 6557, p597 

    Presents experimental confirmation of universality for a phase transition in two dimensions. System's exhibition of a dynamical structures on all available scales; Definition of the universality hypothesis; Parallelism showed by the equation of state of two-dimensional system; Use of the...

  • Entropy, macroscopic information, and phase transitions. Parrondo, Juan M. R. // AIP Conference Proceedings;2000, Vol. 511 Issue 1, p314 

    The relationship between entropy and information is reviewed, taking into account that information is stored in macroscopic degrees of freedom, such as the order parameter in a system exhibiting spontaneous symmetry breaking. It is shown that most problems of the relationship between entropy and...

  • Additive noise and noise-induced nonequilibrium phase transitions. Zaikin, A.; Kurths, J. // AIP Conference Proceedings;2000, Vol. 511 Issue 1, p303 

    We study how additive noise influences noise-induced nonequilibrium phase transitions. The review of the most recent results and a discussion about open questions is presented. We show that additive noise strongly influences a noise-induced phase transition. We demonstrate also that additive...

  • A phase transition in a system driven by coloured noise. Arraya´s, M.; Dykman, M. I.; Mannella, R.; McClintock, P. V. E.; Stein, N. D. // AIP Conference Proceedings;2000, Vol. 502 Issue 1, p42 

    For a system driven by coloured noise, we investigate the activation energy of escape, and the dynamics during the escape. We have performed analogue experiments to measure the change in activation energy as the power spectrum of the noise varies. An adiabatic approach based on path integral...

  • Properties of phase transitions in easy-axis tetragonal antiferromagnets. Chepurnykh, G. K.; Ivaniı, V. S.; Medvedovskaya, O. G.; Nikitina, O. A. // Physics of the Solid State;Nov99, Vol. 41 Issue 11, p1877 

    Properties of phase transitions in a magnetic field H parallel to the easy axis have been investigated, and it has been shown, in particular, that the nature of the transition of the magnetic subsystem from the antiferromagnetic phase to the angular phase depends on the "sign" of the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics