000230582 001__ 230582
000230582 005__ 20181203024816.0
000230582 0247_ $$2doi$$a10.1103/PhysRevB.96.060501
000230582 022__ $$a2469-9950
000230582 02470 $$2ISI$$a000406671500002
000230582 037__ $$aARTICLE
000230582 245__ $$aHigh-energy electronic interaction in the 3d band of high-temperature iron-based superconductors
000230582 260__ $$bAmer Physical Soc$$c2017$$aCollege Pk
000230582 269__ $$a2017
000230582 300__ $$a5
000230582 336__ $$aJournal Articles
000230582 520__ $$aOne of the most unique and robust experimental facts about iron-based superconductors is the renormalization of the electronic band dispersion by factor of 3 and more near the Fermi level. Obviously related to the electron pairing, this prominent deviation from the band theory lacks understanding. Experimentally studying the entire spectrum of the valence electrons in iron arsenides, we have found an unexpected depletion of the spectral weight in the middle of the iron-derived band, which is accompanied by a drastic increase of the scattering rate. At the same time, the measured arsenic-derived band exhibits very good agreement with theoretical calculations. We show that the low-energy Fermi velocity renormalization should be viewed as a part of the modification of the spectral function by a strong electronic interaction. Such an interaction with an energy scale of the whole d band appears to be a hallmark of many families of unconventional superconductors.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aEvtushinsky, D. V.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aYaresko, A. N.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aZabolotnyy, V. B.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aMaletz, J.
000230582 700__ $$uDiamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England$$aKim, T. K.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aKordyuk, A. A.
000230582 700__ $$uHumboldt Univ, Rudower Chaussee 25, D-12489 Berlin, Germany$$aViazovska, M. S.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aRoslova, M.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aMorozov, I.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aBeck, R.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aAswartham, S.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aHarnagea, L.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aWurmehl, S.
000230582 700__ $$0240360$$g104502$$uEcole Polytech Fed Lausanne, Inst Phys Appl, CH-1015 Lausanne, Switzerland$$aBerger, H.
000230582 700__ $$uPaul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland$$aRogalev, V. A.
000230582 700__ $$uPaul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland$$aStrocov, V. N.
000230582 700__ $$uKarlsruher Inst Technol, Inst Festkorperphys, D-76021 Karlsruhe, Germany$$aWolf, T.
000230582 700__ $$uUniv Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland$$aZhigadlo, N. D.
000230582 700__ $$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany$$aBuechner, B.
000230582 700__ $$aBorisenko, S. V.$$uIFW Dresden, Inst Solid State Res, POB 270116, D-01171 Dresden, Germany
000230582 773__ $$j96$$tPhysical Review B$$k6$$q060501
000230582 909C0 $$xU10153$$0252170$$pLSE
000230582 909CO $$pSB$$particle$$ooai:infoscience.tind.io:230582
000230582 917Z8 $$x107920
000230582 937__ $$aEPFL-ARTICLE-230582
000230582 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000230582 980__ $$aARTICLE