Open AccessObservation of scissors modes in solid state systems with a SQUID
Author(s) -
Hatada Keisuke,
Hayakawa Kuniko,
Palumbo Fabrizio,
Marcelli Augusto
Publication year - 2016
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577516001326
Subject(s) - squid , excitation , photon , physics , ion , spectrometer , range (aeronautics) , superconductivity , atomic physics , resonance (particle physics) , interference (communication) , energy (signal processing) , quantum , magnetic field , optics , materials science , condensed matter physics , quantum mechanics , computer science , telecommunications , ecology , channel (broadcasting) , composite material , biology
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.