Magnetic versus nonmagnetic superconducting states in Sr$_2$RuO$_4$
Abstract
The measurements of intensity of ultrasonic resonances below the transition to the superconducting state in a tetragonal metal cannot distinguish between the magnetic and nonmagnetic superconducting states with two-component order parameters.
- Publication:
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arXiv e-prints
- Pub Date:
- September 2020
- DOI:
- 10.48550/arXiv.2009.03263
- arXiv:
- arXiv:2009.03263
- Bibcode:
- 2020arXiv200903263M
- Keywords:
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- Condensed Matter - Superconductivity
- E-Print:
- 1 page The piezo-magnetic term Eq.(4) is not invariant in respect of group D_4(E) Eq.(3). So, piezo-magnetic energy does not exist and play no role in the interpretation of ultrasound experiments