Abstract
This paper describes recent developments in experimental techniques for thermodynamic measurements. Particularly, we focus on the derivatives of the chemical potential with respect to magnetic field and temperature. The former enables to determine the spin magnetization per electron and the latter the entropy per electron. We briefly describe recent results obtained with these techniques and their impact on the current understanding of the still challenging problem of the ground state(s) of strongly correlated two-dimensional electron systems.
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Acknowledgments
AYuK acknowledges support by RFBR (15-02-07715); VMP and ISB acknowledge support by RSF (14-12-00879). MR was supported by ISF, Grant No. 1445/11. Measurements at LPI were performed using research equipment of the LPI shared facility center.
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Pudalov, V.M., Kuntsevich, A.Y., Burmistrov, I.S. et al. Thermodynamic Studies of Two-Dimensional Correlated Electron Systems. J Low Temp Phys 181, 99–111 (2015). https://doi.org/10.1007/s10909-015-1330-x
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DOI: https://doi.org/10.1007/s10909-015-1330-x