Magnitude of the magnetic exchange interaction in the heavy-fermion antiferromagnet cerhin5

Pinaki Das; S. Z. Lin; N. J. Ghimire; K. Huang; F. Ronning; E. D. Bauer; J. D. Thompson; C. D. Batista; G. Ehlers; M. Janoschek

doi:10.1103/PhysRevLett.113.246403

Magnitude of the magnetic exchange interaction in the heavy-fermion antiferromagnet cerhin5

Pinaki Das, S. Z. Lin, N. J. Ghimire, K. Huang, F. Ronning, E. D. Bauer, J. D. Thompson, C. D. Batista, G. Ehlers, M. Janoschek

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Abstract

We have used high-resolution neutron spectroscopy experiments to determine the complete spin wave spectrum of the heavy-fermion antiferromagnet CeRhIn5. The spin wave dispersion can be quantitatively reproduced with a simple frustrated J1-J2 model that also naturally explains the magnetic spin-spiral ground state of CeRhIn5 and yields a dominant in-plane nearest-neighbor magnetic exchange constant J0=0.74(3)meV. Our results pave the way to a quantitative understanding of the rich low-temperature phase diagram of the prominent CeTIn5 (T=Co, Rh, Ir) class of heavy-fermion materials.

Original language	English
Article number	246403
Journal	Physical Review Letters
Volume	113
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.113.246403
State	Published - Dec 8 2014

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title = "Magnitude of the magnetic exchange interaction in the heavy-fermion antiferromagnet cerhin5",

abstract = "We have used high-resolution neutron spectroscopy experiments to determine the complete spin wave spectrum of the heavy-fermion antiferromagnet CeRhIn5. The spin wave dispersion can be quantitatively reproduced with a simple frustrated J1-J2 model that also naturally explains the magnetic spin-spiral ground state of CeRhIn5 and yields a dominant in-plane nearest-neighbor magnetic exchange constant J0=0.74(3)meV. Our results pave the way to a quantitative understanding of the rich low-temperature phase diagram of the prominent CeTIn5 (T=Co, Rh, Ir) class of heavy-fermion materials.",

author = "Pinaki Das and Lin, {S. Z.} and Ghimire, {N. J.} and K. Huang and F. Ronning and Bauer, {E. D.} and Thompson, {J. D.} and Batista, {C. D.} and G. Ehlers and M. Janoschek",

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doi = "10.1103/PhysRevLett.113.246403",

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T1 - Magnitude of the magnetic exchange interaction in the heavy-fermion antiferromagnet cerhin5

AU - Das, Pinaki

AU - Lin, S. Z.

AU - Ghimire, N. J.

AU - Huang, K.

AU - Ronning, F.

AU - Bauer, E. D.

AU - Thompson, J. D.

AU - Batista, C. D.

AU - Ehlers, G.

AU - Janoschek, M.

PY - 2014/12/8

Y1 - 2014/12/8

N2 - We have used high-resolution neutron spectroscopy experiments to determine the complete spin wave spectrum of the heavy-fermion antiferromagnet CeRhIn5. The spin wave dispersion can be quantitatively reproduced with a simple frustrated J1-J2 model that also naturally explains the magnetic spin-spiral ground state of CeRhIn5 and yields a dominant in-plane nearest-neighbor magnetic exchange constant J0=0.74(3)meV. Our results pave the way to a quantitative understanding of the rich low-temperature phase diagram of the prominent CeTIn5 (T=Co, Rh, Ir) class of heavy-fermion materials.

AB - We have used high-resolution neutron spectroscopy experiments to determine the complete spin wave spectrum of the heavy-fermion antiferromagnet CeRhIn5. The spin wave dispersion can be quantitatively reproduced with a simple frustrated J1-J2 model that also naturally explains the magnetic spin-spiral ground state of CeRhIn5 and yields a dominant in-plane nearest-neighbor magnetic exchange constant J0=0.74(3)meV. Our results pave the way to a quantitative understanding of the rich low-temperature phase diagram of the prominent CeTIn5 (T=Co, Rh, Ir) class of heavy-fermion materials.

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VL - 113

JO - Physical Review Letters

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Magnitude of the magnetic exchange interaction in the heavy-fermion antiferromagnet cerhin5

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