Experimental analysis of YbT4M alloys identifies three regimes around the QCP, with CEF effects yielding a phase diagram dominated by quantum fluctuations that produce power-law and logarithmic specific-heat behavior without low-T divergences.
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Magnetization and specific heat analyses determine CEF parameters and reveal that the paramagnetic ground state in HoCo2Zn20 is a quasi-sextet from electron-nuclear spin entanglement, switchable to a dectet with different CEF parameters.
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II. Exploring the role of the Crystal Electric Field in the vicinity of a Quantum Critical Point
Experimental analysis of YbT4M alloys identifies three regimes around the QCP, with CEF effects yielding a phase diagram dominated by quantum fluctuations that produce power-law and logarithmic specific-heat behavior without low-T divergences.
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Paramagnetic electron-nuclear spin entanglement in HoCo2Zn20
Magnetization and specific heat analyses determine CEF parameters and reveal that the paramagnetic ground state in HoCo2Zn20 is a quasi-sextet from electron-nuclear spin entanglement, switchable to a dectet with different CEF parameters.