Magnetic character of chiral phonons
Chirality is one of the most fundamental symmetry properties in nature. In condensed matter systems, the connection of chirality and electronic and magnetic properties has gained renewed interest. Here we propose to directly test the underlying concept of orbital angular moment transfer required for an excitation of a chiral phonon in chiral ¿-quartz. Considering a 100% chiral phonon mode has to conserve orbital angular momentum, it will require the neutron to flip its spin when exciting the mode. As certain modes at a specific point in reciprocal space in quartz are highly chiraly polarized, one would expect a significant spin-flip signal, similar to the significant observed dichroic signal in our recent RIXS experiment. Besides the basic concepts, nothing is known to our knowledge on any attempt to confirm this process directly and quantify the magnetic character of a chiral phonon experimentally.
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The recommended format for citing this dataset in a research publication is in the following format:
STAUB Urs; ENDERLE Mechthild; HANSEN Ursula Bengaard; ROESSLI Bertrand; ROMAO Carl; SPALDIN Nicola and Hiroki Ueda. (2023). Magnetic character of chiral phonons. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-05-876
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This data is not yet public
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