Avoided ferromagnetic quantum critical point: Antiferromagnetic ground state in 
substituted CeFePO

Jesche, A.; Balle, T.; Kliemt, K.; Geibel, C.; Brando, M.; Krellner, C.

doi:10.1002/pssb.201600169

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Avoided ferromagnetic quantum critical point: Antiferromagnetic ground state in substituted CeFePO

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/persons/resource/persons126677

Jesche, A.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126614

Geibel, C.
Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126548

Brando, M.
Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126710

Krellner, C.
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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引用

Jesche, A., Balle, T., Kliemt, K., Geibel, C., Brando, M., & Krellner, C. (2017). Avoided ferromagnetic quantum critical point: Antiferromagnetic ground state in substituted CeFePO. Physica Status Solidi B, 254(1):, pp. 1-6. doi:10.1002/pssb.201600169.

引用: https://hdl.handle.net/11858/00-001M-0000-002C-A9A2-9

要旨

We have investigated single crystals of two substitution series Ce(Ru1-x Fe-x)PO and CeFe(As1-y P-y)O in the vicinity to the quantum critical material CeFePO by means of magnetic-susceptibility and specific-heat measurements. We observe an antiferromagnetic ground state in the vicinity of the quantum critical point, with pronounced metamagnetic transitions for H parallel to c, which is the magnetically hard direction. Our results verify that a ferromagnetic quantum critical point is avoided in substituted CeFePO, because we clearly demonstrate that the ferromagnetic ground state changes into an antiferromagnetic one, when approaching the quantum critical point. (C) 2016 WILEY- VCH Verlag GmbH & Co. KGaA, Weinheim