随着掺杂浓度的增加，体系在低温区由金属向绝缘体转变。

The system turns from metal to insulator at lower temperatures with Cu concentration increasing.

youdao

随着掺杂浓度的增加，体系在低温区由金属向绝缘体转变。

The system turns from metal to insulator at lower temperatures with Cu concentration increasing.

youdao