通过电双电层栅极对Ca$_{2}$RuO$_{4}$进行金属化
Metallisation of the Mott Insulator Ca$_{2}$RuO$_{4}$ using Electric Double-Layer Gating
AI总结:
通过电双电层栅极技术,研究了Ca$_{2}$RuO$_{4}$在高电压下的电阻变化,发现其可能与体相结构变化相关。
摘要:
为验证是否可以通过单独施加电场将Mott绝缘体Ca2RuO4切换,无论是否有电流流动,我们采用电双电层栅极(EDLG)进行金属化。由于EDLG引起的电阻变化仅在施加超过+3 V的正栅极电压时发生。幅度达到初始值的约97%的减少,难以解释为表面金属化,很可能与体相结构变化有关。
英文摘要:
To verify whether the Mott insulator Ca2RuO4 can be switched by applying electric-field alone, regardless of current flow, we employ metallisation using electric double-layer gating (EDLG). The resistance change due to EDLG occurs only when positive gate-voltage above +3 V is applied. The amplitude of the reduction, reaching ~97% of the initial value, is difficult to interpret as surface metallisation and is likely related to structural change in bulk.
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