Excitons moving inside TaSe3 (IMAGE)
Caption
During angle-resolved photoemission spectroscopy (ARPES), an electron is ejected into a vacuum and an exciton is formed when the hole left by the electron pairs up with an electron at the Fermi level. The researchers gained insight into the excitons forming and moving inside the TaSe3 sample by measuring the energy of the electrons emitted into the vacuum.
Credit
City University of Hong Kong
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