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Structural Changes in a Single GaN Nanowire under Applied Voltage Bias

GaN nanowires (NWs) are promising building blocks for future optoelectronic devices and nanoelectronics. They exhibit stronger piezoelectric properties than bulk GaN. This phenomena may be crucial for applications of NWs and makes their study highly important. We report on an investigation of the structure evolution of a single GaN NW under an applied voltage bias along polar [0001] crystallograph

The η′-carbon potential at low meson momenta

The production of η′ mesons in coincidence with forward-going protons has been studied in photon-induced reactions on 12 C and on a liquid hydrogen (LH 2 ) target for incoming photon energies of 1.3–2.6 GeV at the electron accelerator ELSA. The η′ mesons have been identified via the η′ → π 0 π 0 η → 6γ decay registered with the CBELSA/TAPS detector system. Coincident protons have been identif