An approach is proposed to develop recording materials for high speed phase change optical data storage. It utilizes a thin film alloy mixture between a stoichiometric GeSbTe alloy and an additive ternary telluride alloy. Selection rules for an additive alloy are suggested. For a test, (Ge1Sb2Te4)1−x(Sn1Bi2Te4)x thin films are deposited by co-sputtering and their structural and thermal properties are studied. Ge1Sb2Te4 and Sn1Bi2Te4 are found to form a completely soluble pseudo-binary system, whose crystalline lattice parameters obey Vegard’s rule over the entire range of x (0<x<1). Furthermore, the alloy mixtures display an increasing tendency for crystallization with Sn1Bi2Te4 content. Dynamic tests of disk samples are made to show the effectiveness of the approach for high speed erasure.

1.
J. H.
Coombs
,
A. P. J. M.
Jongenelis
,
W.
van Es-Spiekman
, and
B. A. J.
Jacobs
,
J. Appl. Phys.
78
,
4918
(
1995
).
Google Scholar
 
2.
T.
Akiyama
,
M.
Uno
,
H.
Kitaura
,
K.
Narumi
,
R.
Kojima
,
K.
Nishiuchi
, and
N.
Yamada
,
Jpn. J. Appl. Phys., Part 1
40
,
1598
(
2001
).
Google Scholar
 
3.
C. M.
Lee
,
T. S.
Chin
, and
E. Y.
Huang
,
J. Appl. Phys.
89
,
3290
(
2001
).
Google Scholar
 
4.
G. F.
Zhou
and
B. A. J.
Jacobs
,
Jpn. J. Appl. Phys., Part 1
38
,
1625
(
1999
).
Google Scholar
 
5.
N.
Yamada
,
M.
Otoba
,
K.
Kawahara
,
N.
Miyagawa
,
H.
Ohta
,
N.
Akahira
, and
T.
Matsunaga
,
Jpn. J. Appl. Phys., Part 1
37
,
2104
(
1998
).
Google Scholar
 
6.
C.
Trappe
,
B.
Bechevet
,
B.
Hyot
,
O.
Winkler
,
S.
Facsko
, and
H.
Kurz
,
Jpn. J. Appl. Phys., Part 1
39
,
766
(
2000
).
Google Scholar
 
7.
Structural Chemistry of Layer-Type Phases, edited by F. Levy (D. Reidel, Dordrecht, Holland, 1976), and references therein.
8.
Handbook of Ternary Alloy Phase Diagrams, edited by P. Villars, A. Prince, and Okamoto (American Society of Metals, Metals Park, Ohio, 1997), and references therein.
9.
M.
Mansuripur
,
C.
Peng
,
J. K.
Erwin
,
W.
Bletsher
,
S. K.
Lee
,
R. E.
Gerber
,
C.
Bartlett
,
T. D.
Goodman
,
L.
Cheng
,
C. S.
Chung
,
T.
Kim
, and
K.
Bates
,
Appl. Opt.
36
,
9296
(
1997
).
Google Scholar
 
10.
N.
Yamada
,
E.
Ohno
,
K.
Nishiuchi
,
N.
Akahira
, and
M.
Takao
,
J. Appl. Phys.
69
,
2849
(
1991
).
Google Scholar
 
11.
H.
Yinnon
and
D. R.
Uhlmann
,
J. Non-Cryst. Solids
54
,
253
(
1983
).
Google Scholar
 
12.
K. A.
Agaev
and
A. G.
Talybov
,
Kristallografiya
11
,
400
(
1966
).
Google Scholar
 
13.
T. B.
Zhukova
and
A. I.
Zaslavskii
,
Kristallografiya
16
,
796
(
1971
).
Google Scholar
 
14.
Handbook of Chemistry and Physics, 81st ed., edited by D. R. Lide (Chemical Rubber, Boca Raton, FL, 2000), pp. 9–52.
This content is only available via PDF.
© 2002 American Institute of Physics.
2002
American Institute of Physics
You do not currently have access to this content.