Specific heat measuremnts on high transition temperature perovskite superconductor were conducted from 5.3 K to 345 K. The sample was prepared by mixing stoichiometric amounts of Yttrium oxide, BaO, and CuO so as to yield a 1:2:3 ratio of metals. T he decrease in specific heat at the transition temperature ‐ 91 K is discussed.(AIP)

1.
B. D.
Dunlap
,
M. V.
Nevitt
,
M.
Slaski
,
T. E.
Klippert
,
Z.
Sungaila
,
A. G.
McKale
,
D. W.
Capone
,
R. B.
Poeppel
, and
B. K.
Flandermeyer
,
Phys. Rev. B
35
,
7210
(
1987
).
2.
K.
Kitazawa
,
M.
Sakai
,
S.
Uchida
,
H.
Takagi
,
K.
Kishio
,
S.
Kanbe
,
S.
Tanaka
, and
K.
Fueki
,
Jpn. J. Appl. Phys.
26
,
L342
(
1987
).
3.
L. E.
Wenger
,
J. T.
Chen
,
G. W.
Hunter
, and
E. M.
Logothetis
,
Phys. Rev. B
35
,
7213
(
1987
).
4.
M. E.
Reeves
,
T. A.
Friedmann
, and
D. M.
Ginsberg
,
Phys. Rev. B
35
,
7207
(
1987
).
5.
Y.
Maeno
,
Y.
Aoki
,
H.
Kamimura
,
J.
Sakurai
, and
T.
Fujita
,
Jpn. J. Appl. Phys.
26
,
L402
(
1987
).
6.
Y.
LePage
,
W. R.
McKinnon
,
J. M.
Tarascon
,
L. H.
Greene
,
G. W.
Hull
, and
D. M.
Hwang
,
Phys. Rev. B
35
,
7245
(
1987
).
7.
R. J.
Cava
,
B.
Batlogg
,
R. B.
van Dover
,
D. W.
Murphy
,
S.
Sunshine
,
T.
Siegrist
,
J. P.
Remeika
,
E. A.
Reitman
,
S.
Zahurak
, and
G. P.
Espinosa
,
Phys. Rev. Lett.
58
,
1676
(
1987
).
8.
E. F. Westrum Jr., G. T. Furukawa, and J. P. McCullough, Experimental Thermodynamics, edited by J. P. McCullough and D. W. Scott (Butterworths, London, 1968), Vol. I, p. 133.
9.
A. C. Rose‐Innes and E. H. Rhoderick, Introduction to Superconductivity (Pergamon, Oxford, 1969), p. 60.
10.
B. Battlogg (private communication).
11.
R. D. Parks, Superconductivity (Dekkar, New York, 1969), Vol. I, p. 79.
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