000225141 001__ 225141
000225141 005__ 20180913064147.0
000225141 0247_ $$2doi$$a10.1103/PhysRevB.94.165165
000225141 022__ $$a2469-9950
000225141 02470 $$2ISI$$a000390034700005
000225141 037__ $$aARTICLE
000225141 245__ $$aRevealing the role of electrons and phonons in the ultrafast recovery of charge density wave correlations in 1T-TiSe2
000225141 260__ $$aCollege Pk$$bAmer Physical Soc$$c2016
000225141 269__ $$a2016
000225141 300__ $$a9
000225141 336__ $$aJournal Articles
000225141 520__ $$aUsing time-and angle-resolved photoemission spectroscopy with selective near-and midinfrared photon excitations, we investigate the femtosecond dynamics of the charge density wave ( CDW) phase in 1T-TiSe2 as well as the dynamics of CDW fluctuations at 240 K. In the CDW phase, we observe the coherent oscillation of the CDW amplitude mode. At 240 K, we single out an ultrafast component in the recovery of the CDW correlations, which we explain as the manifestation of electron-hole correlations. Our momentum-resolved study of femtosecond electron dynamics supports a mechanism for the CDW phase resulting from the cooperation between the interband Coulomb interaction, the mechanism of excitonic insulator phase formation, and electron-phonon coupling.
000225141 700__ $$aMonney, C.$$uMax Planck Gesell, Fritz Haber Insitut, Faradayweg 4-6, D-14195 Berlin, Germany
000225141 700__ $$aPuppin, M.$$uMax Planck Gesell, Fritz Haber Insitut, Faradayweg 4-6, D-14195 Berlin, Germany
000225141 700__ $$aNicholson, C. W.$$uMax Planck Gesell, Fritz Haber Insitut, Faradayweg 4-6, D-14195 Berlin, Germany
000225141 700__ $$aHoesch, M.$$uDiamond Light Source, Harwell Campus, Didcot OX11 0DE, Oxon, England
000225141 700__ $$aChapman, R. T.$$uSTFC Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England
000225141 700__ $$aSpringate, E.$$uSTFC Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England
000225141 700__ $$0240360$$aBerger, H.$$g104502
000225141 700__ $$aMagrez, A.
000225141 700__ $$aCacho, C.$$uSTFC Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England
000225141 700__ $$aErnstorfer, R.$$uMax Planck Gesell, Fritz Haber Insitut, Faradayweg 4-6, D-14195 Berlin, Germany
000225141 700__ $$aWolf, M.$$uMax Planck Gesell, Fritz Haber Insitut, Faradayweg 4-6, D-14195 Berlin, Germany
000225141 773__ $$j94$$k16$$q165165$$tPhysical Review B
000225141 909C0 $$0252170$$pLSE$$xU10153
000225141 909CO $$ooai:infoscience.tind.io:225141$$pSB$$particle
000225141 917Z8 $$x107920
000225141 937__ $$aEPFL-ARTICLE-225141
000225141 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000225141 980__ $$aARTICLE