000224802 001__ 224802
000224802 005__ 20180317094446.0
000224802 0247_ $$2doi$$a10.1039/c6nr06327f
000224802 022__ $$a2040-3364
000224802 02470 $$2ISI$$a000387858700016
000224802 037__ $$aARTICLE
000224802 245__ $$aTuning the magnetoresistance of ultrathin WTe2 sheets by electrostatic gating
000224802 260__ $$aCambridge$$bRoyal Soc Chemistry$$c2016
000224802 269__ $$a2016
000224802 300__ $$a7
000224802 336__ $$aJournal Articles
000224802 520__ $$aThe semimetallic, two-dimensional layered transition metal dichalcogenide WTe2 has raised considerable interest due to its huge, non-saturating magnetoresistance. While for the origin of this effect, a close-toideal balance of electrons and holes has been put forward, the carrier concentration dependence of the magnetoresistance remains to be clarified. Here, we present a detailed study of the magnetotransport behaviour of ultrathin, mechanically exfoliated WTe2 sheets as a function of electrostatic back gating. The carrier concentration and mobility, determined using the two band model and analysis of the Shubnikovde Haas oscillations, indicate enhanced surface scattering for the thinnest sheets. By the back gate action, the magnetoresistance could be tuned by up to similar to 100% for a similar to 13 nm-thick WTe2 sheet.
000224802 700__ $$aNa, Junhong$$uMax Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
000224802 700__ $$aHoyer, Alexander$$uMax Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
000224802 700__ $$aSchoop, Leslie$$uMax Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
000224802 700__ $$aWeber, Daniel$$uMax Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
000224802 700__ $$aLotsch, Bettina V.$$uMax Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
000224802 700__ $$0245079$$aBurghard, Marko$$g168699$$uMax Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
000224802 700__ $$0240038$$aKern, Klaus$$g105546$$uMax Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
000224802 773__ $$j8$$k44$$q18703-18709$$tNanoscale
000224802 909CO $$ooai:infoscience.tind.io:224802$$particle$$pSB
000224802 909C0 $$0252366$$pLSEN$$xU10152
000224802 917Z8 $$x105546
000224802 937__ $$aEPFL-ARTICLE-224802
000224802 973__ $$aOTHER$$rREVIEWED$$sPUBLISHED
000224802 980__ $$aARTICLE