期刊
SCIENCE
卷 343, 期 6177, 页码 1333-1336出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1242862
关键词
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资金
- LCLS
- Stanford University through SIMES
- Lawrence Berkeley National Laboratory
- University of Hamburg through the BMBF [FSP 301]
- Center for Free Electron Laser Science (CFEL)
- National Center for Competence in Research (NCCR) Molecular Ultrafast Science and Technology
- NCCR Materials with Novel Electronic Properties
- Swiss National Science Foundation
- Swiss National Science Foundation [200021_144115]
- DOE [DE-AC02-05CH11231]
- DOE, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-FG02-08ER46544]
- DOE, Office of Basic Energy Sciences, Materials Sciences and Engineering Division [DE-AC02-76SF00515]
- Swiss National Science Foundation (SNF) [200021_144115] Funding Source: Swiss National Science Foundation (SNF)
Multiferroics have attracted strong interest for potential applications where electric fields control magnetic order. The ultimate speed of control via magnetoelectric coupling, however, remains largely unexplored. Here, we report an experiment in which we drove spin dynamics in multiferroic TbMnO3 with an intense few-cycle terahertz (THz) light pulse tuned to resonance with an electromagnon, an electric-dipole active spin excitation. We observed the resulting spin motion using time-resolved resonant soft x-ray diffraction. Our results show that it is possible to directly manipulate atomic-scale magnetic structures with the electric field of light on a sub-picosecond time scale.
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