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Observation of scissors modes in solid state systems with a SQUID

Abstract : The occurrence of scissors modes in crystals that have deformed ions in their unit cells was predicted some time ago. The theoretical value of their energy is rather uncertain, however, ranging between ten and a few tens of eV, with the corresponding widths of 10(-7) to 10(-6) eV. Their observation by resonance fluorescence experiments therefore requires a photon spectrometer covering a wide energy range with a very high resolving power. Here, a new experiment is proposed and discussed in which such difficulties are overcome by measuring with a superconducting quantum interference device (SQUID) the variation of the magnetic field associated with the excitation of scissors modes
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Submitted on : Friday, March 4, 2016 - 4:58:45 PM
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Keisuke Hatada, Kuniko Hayakawa, Fabrizio Palumbo, Augusto Marcelli. Observation of scissors modes in solid state systems with a SQUID. Journal of Synchrotron Radiation, International Union of Crystallography, 2016, 23 (Pt 2), pp.560--565. ⟨10.1107/S1600577516001326⟩. ⟨hal-01282979⟩



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