Superconducting and Magnetic Behavior in La2-xNaxCuO4.
New phases of the type La2-xAx(l+)CUO4-y have been prepared where A(l+) is sodium or potassium. The sodium phases are superconducting for x values from 0.2 to 0.5 at temperatures up to about 40 K. In addition, there are unusual magnetic properties below about 10 K that may be indicative of spin glass behavior. Phases of the type La2-xKxCuO4-y could only be prepared with x values up to about 0.1, and these phases are not superconducting above 4.2 K.
Subramanian
M A
MA
Gopalakrishnan
J
J
Torardi
C C
CC
Askew
T R
TR
Flippen
R B
RB
Sleight
A W
AW
Lin
J J
JJ
Poon
S J
SJ