| 摘要 |
<p>Provided is a metal oxide material represented by the composition formula of LnaSrbCu3-xMxOc, where 2.7 </= a + b </= 3.3; 0.8 </= a </= 1.2; 6 </= c </= 9; and 0.05 </= x </= 0.7, Ln is at least one element selected from the group of elements of Y and lanthanoids or an atomic group consisting of said elements, and M is at least one element selected from the group of elements of Ti, V, Ga, Ge, Mo, W and Re or an atomic group consisting of said elements.</p> |
