The Valence Band Structure of Gadolinium Studied with Time-Resolved Photoemission

作者: B. Frietsch , J. Bowlan , R. Carley , M. Teichmann , J. Wolter

DOI: 10.1007/978-3-319-07743-7_85

关键词: Magnetic circular dichroismLaserGadoliniumMaterials scienceCurie temperatureExcitationFerromagnetismCondensed matter physicsAngle-resolved photoemission spectroscopyValence (chemistry)

摘要: We have studied the response of exchange split valence bands ferromagnetic gadolinium tofemtosecond laser excitation. observe a drop splitting with time constant 0.9 ps but different times minority and majority spin bands. Furthermore, even above Curie temperature there is finite splitting, which also decreases

参考文章(14)
Michael Krauß, Tobias Roth, Sabine Alebrand, Daniel Steil, Mirko Cinchetti, Martin Aeschlimann, Hans Christian Schneider, Ultrafast demagnetization of ferromagnetic transition metals: The role of the Coulomb interaction Physical Review B. ,vol. 80, pp. 180407- ,(2009) , 10.1103/PHYSREVB.80.180407
Alexey Melnikov, Oksana Chubykalo-Fesenko, Uwe Bovensiepen, Electron- and phonon-mediated ultrafast magnetization dynamics of Gd(0001) Physical Review B. ,vol. 85, pp. 184407- ,(2012) , 10.1103/PHYSREVB.85.184407
M. Battiato, K. Carva, P. M. Oppeneer, Superdiffusive Spin Transport as a Mechanism of Ultrafast Demagnetization Physical Review Letters. ,vol. 105, pp. 027203- 027203 ,(2010) , 10.1103/PHYSREVLETT.105.027203
A. B. Schmidt, M. Pickel, M. Donath, P. Buczek, A. Ernst, V. P. Zhukov, P. M. Echenique, L. M. Sandratskii, E. V. Chulkov, M. Weinelt, Ultrafast magnon generation in an Fe film on Cu(100). Physical Review Letters. ,vol. 105, pp. 197401- ,(2010) , 10.1103/PHYSREVLETT.105.197401
I. Radu, K. Vahaplar, C. Stamm, T. Kachel, N. Pontius, H. A. Dürr, T. A. Ostler, J. Barker, R. F. L. Evans, R. W. Chantrell, A. Tsukamoto, A. Itoh, A. Kirilyuk, Th. Rasing, A. V. Kimel, Transient ferromagnetic-like state mediating ultrafast reversal of antiferromagnetically coupled spins Nature. ,vol. 472, pp. 205- 208 ,(2011) , 10.1038/NATURE09901
K. Maiti, M. C. Malagoli, A. Dallmeyer, C. Carbone, Finite temperature magnetism in Gd: Evidence against a Stoner behavior Physical Review Letters. ,vol. 88, pp. 167205- ,(2002) , 10.1103/PHYSREVLETT.88.167205
Jean-Yves Bigot, Mircea Vomir, Eric Beaurepaire, Coherent ultrafast magnetism induced by femtosecond laser pulses Nature Physics. ,vol. 5, pp. 515- 520 ,(2009) , 10.1038/NPHYS1285
B. Frietsch, R. Carley, K. Döbrich, C. Gahl, M. Teichmann, O. Schwarzkopf, Ph. Wernet, M. Weinelt, A high-order harmonic generation apparatus for time- and angle-resolved photoelectron spectroscopy Review of Scientific Instruments. ,vol. 84, pp. 075106- 075106 ,(2013) , 10.1063/1.4812992
Marko Wietstruk, Alexey Melnikov, Christian Stamm, Torsten Kachel, Niko Pontius, Muhammad Sultan, Cornelius Gahl, Martin Weinelt, Hermann A. Dürr, Uwe Bovensiepen, Hot-Electron-Driven Enhancement of Spin-Lattice Coupling in Gd and Tb 4 f Ferromagnets Observed by Femtosecond X-Ray Magnetic Circular Dichroism Physical Review Letters. ,vol. 106, pp. 127401- ,(2011) , 10.1103/PHYSREVLETT.106.127401