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Showing 1–3 of 3 results
Advanced filters: Author: Minglin Toh Clear advanced filters

  • Two-dimensional semiconducting transition metal dichalcogenides strongly absorb visible light. Kozawa et al.study the photocarrier relaxation in mono- and bilayer MX2 samples and find that loss of photocarriers by direct recombination becomes a second-order process when excitation is in resonance with band nesting.

    • Daichi Kozawa
    • Rajeev Kumar
    • Goki Eda
    Research
    Nature Communications
    Volume: 5, P: 1-7

  • Atomically thin transition metal dichalcogenides offer a platform to explore the valley degree of freedom originating from their electronic band structure. Here, the authors use polarization- and time-resolved spectroscopy to investigate the temperature-dependent valley pseudospin relaxation processes in WSe2 monolayers.

    • Yuhei Miyauchi
    • Satoru Konabe
    • Kazunari Matsuda
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-10

  • A magnetic field can lift the spin degeneracy of electrons. This Zeeman effect is an important route to generating the spin polarization required for spintronics. It is now shown that such polarization can also be achieved without the need for magnetism. The unique crystal symmetry of tungsten selenide creates a Zeeman-like effect when a monolayer of the material is exposed to an external electric field.

    • Hongtao Yuan
    • Mohammad Saeed Bahramy
    • Yoshihiro Iwasa
    Research
    Nature Physics
    Volume: 9, P: 563-569