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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2017 ; 114 (27): E5300-7 Nephropedia Template TP
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Distinguishing attosecond electron?electron scattering and screening in transition metals #MMPMID28630331
Chen C; Tao Z; Carr A; Matyba P; Szilvási T; Emmerich S; Piecuch M; Keller M; Zusin D; Eich S; Rollinger M; You W; Mathias S; Thumm U; Mavrikakis M; Aeschlimann M; Oppeneer PM; Kapteyn H; Murnane M
Proc Natl Acad Sci U S A 2017[Jul]; 114 (27): E5300-7 PMID28630331show ga
Electron?electron interactions are among the fastest processes in materials that determine their fascinating properties, occurring on attosecond timescales on up (1 as = 10?18 s). The recent development of attosecond angle-resolved photoemission spectroscopy (atto-ARPES) using high harmonic generation has opened up the possibility of probing electron?electron interactions in real time. In this paper, we distinguish electron?electron screening and charge scattering in the time domain in individual energy bands within a solid. These results open up new possibilities for probing fundamental electron?electron interactions in a host of materials including magnetic, superconducting, and advanced quantum materials.