Anomalous behavior of linear resistivity arising in intergrain ordering process of weak-sintered ceramic system YBa2Cu4O8

► Ceramic system of YBa2Cu4O8 (Y124) shows intergrain ordering affected by frustration. ► Novel vanishing process of electric resistivity is caused by the frustration effect. ► Almost vanished resistivity around the critical temp. is restored below the region. ► Faint peak of resistivity appears certainly below the ordering point decided magnetically.