Non-equilibrium steady state (NESS) conditions induced by DC current can alter the physical properties of strongly correlated electron systems (SCES). In this regard, it was recently shown that DC current can trigger novel electronic states, such as current-induced diamagnetism, which cannot be realized in equilibrium conditions. However, reversible control of diamagnetism has not been achieved yet. Here, we demonstrate reversible in situ control between a Mott insulating state and a diamagnetic semimetal-like state by DC current in the Tisubstituted bilayer ruthenate Ca 3 (Ru 1−x Ti x ) 2 O 7 (x = 0.5%). By performing simultaneous magnetic and resistive measurements, we map out the temperature vs current-density phase diagram in the NESS of this material. The present results open up the possibility of creating novel electronic states in a variety of SCES under DC current.
Following the publication of the Letter, new measurements performed in Kyoto by Mattoni, Yonezawa, and Maeno [1] led to reveal a serious technical artefact that affected our published data. In particular, it became clear that a large part of the reported diamagnetic signal was arising from a mechanism that we did not anticipate. This signal can be understood as due to localized heating of the sample holder, caused by the unavoidable Joule heating in the sample. Because the artefact affects the main experimental data, the authors unanimously agreed to retract the Letter. For the same reason, previous work on Ca 2 RuO 4 [2] has also been retracted [3]. We are profoundly sorry for having overlooked this aspect, and we explain the details of this rather unexpected phenomenon in Ref. [1].
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