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Strong dopant dependence of electric transport in ion-gated MoS2

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arxiv 1704.07618 v3 pith:Z4KGSKB5 submitted 2017-04-25 cond-mat.mes-hall cond-mat.mtrl-scicond-mat.supr-con

Strong dopant dependence of electric transport in ion-gated MoS2

classification cond-mat.mes-hall cond-mat.mtrl-scicond-mat.supr-con
keywords intercalationmathrmelectrictransportaccessdependencedifferentdisorder-induced
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We report modifications of the temperature-dependent transport properties of $\mathrm{MoS_2}$ thin flakes via field-driven ion intercalation in an electric double layer transistor. We find that intercalation with $\mathrm{Li^+}$ ions induces the onset of an inhomogeneous superconducting state. Intercalation with $\mathrm{K^+}$ leads instead to a disorder-induced incipient metal-to-insulator transition. These findings suggest that similar ionic species can provide access to different electronic phases in the same material.

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