Time-resolved resonant soft x-ray diffraction with free-electron lasers: Femtosecond dynamics across the Verwey transition in magnetite

被引：36

作者：

Pontius, N. ^{[1
]}

Kachel, T. ^{[1
]}

Schuessler-Langeheine, C. ^{[1
,2
]}

Schlotter, W. F. ^{[3
,4
,5
]}

Beye, M. ^{[1
,3
,4
]}

Sorgenfrei, F. ^{[3
,4
]}

Chang, C. F. ^{[2
]}

Foehlisch, A. ^{[1
,3
,4
,6
]}

Wurth, W. ^{[3
,4
]}

Metcalf, P. ^{[7
]}

Leonov, I. ^{[8
]}

Yaresko, A. ^{[9
]}

Stojanovic, N. ^{[10
]}

Berglund, M. ^{[1
,3
,4
,6
]}

Guerassimova, N. ^{[10
]}

Duesterer, S. ^{[10
]}

Redlin, H. ^{[10
]}

Duerr, H. A. ^{[5
,11
]}

机构：

[1] Helmholtz Zentrum Berlin Mat & Energie GmbH, Inst Methods & Instrumentat Synchrotron Radiat Re, D-12489 Berlin, Germany

[2] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[3] Univ Hamburg, Dept Phys, D-22761 Hamburg, Germany

[4] Univ Hamburg, Ctr Free Electron Laser Sci, D-22761 Hamburg, Germany

[5] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[6] Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany

[7] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA

[8] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

[9] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[10] Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany

[11] Helmholtz Zentrum Berlin Mat & Energie GmbH, Dept Magnet Dynam, D-12489 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 18期

关键词：

FE3O4; FLASH; GAP;

D O I：

10.1063/1.3584855

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Resonant soft x-ray diffraction (RSXD) with femtosecond (fs) time resolution is a powerful tool for disentangling the interplay between different degrees of freedom in strongly correlated electron materials. It allows addressing the coupling of particular degrees of freedom upon an external selective perturbation, e. g., by an optical or infrared laser pulse. Here, we report a time-resolved RSXD experiment from the prototypical correlated electron material magnetite using soft x-ray pulses from the free-electron laser FLASH in Hamburg. We observe ultrafast melting of the charge-orbital order leading to the formation of a transient phase, which has not been observed in equilibrium. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3584855]

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页数：3

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