Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi4 P2

H. Pfau; R. Daou; S. Friedemann; S. Karbassi; S. Ghannadzadeh; R. Küchler; S. Hamann; A. Steppke; D. Sun; M. König; A. P. Mackenzie; K. Kliemt; C. Krellner; M. Brando

doi:10.1103/PhysRevLett.119.126402

Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi4 P2

H. Pfau, R. Daou, S. Friedemann, S. Karbassi, S. Ghannadzadeh, R. Küchler, S. Hamann, A. Steppke, D. Sun, M. König, A. P. Mackenzie, K. Kliemt, C. Krellner, M. Brando

Physics

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Abstract

A ferromagnetic quantum critical point is thought not to exist in two- and three-dimensional metallic systems yet is realized in the Kondo lattice compound YbNi4(P,As)2, possibly due to its one-dimensionality. It is crucial to investigate the dimensionality of the Fermi surface of YbNi4P2 experimentally, but common probes such as angle-resolved photoemission spectroscopy and quantum oscillation measurements are lacking. Here, we study the magnetic-field dependence of transport and thermodynamic properties of YbNi4P2. The Kondo effect is continuously suppressed, and additionally we identify nine Lifshitz transitions between 0.4 and 18 T. We analyze the transport coefficients in detail and identify the type of Lifshitz transitions as neck or void type to gain information on the Fermi surface of YbNi4P2. The large number of Lifshitz transitions observed within this small energy window is unprecedented and results from the particular flat renormalized band structure with strong 4f-electron character shaped by the Kondo lattice effect.

Original language	English (US)
Article number	126402
Journal	Physical review letters
Volume	119
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.119.126402
State	Published - Sep 21 2017

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Physics and Astronomy(all)

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10.1103/PhysRevLett.119.126402

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Pfau, H., Daou, R., Friedemann, S., Karbassi, S., Ghannadzadeh, S., Küchler, R., Hamann, S., Steppke, A., Sun, D., König, M., Mackenzie, A. P., Kliemt, K., Krellner, C., & Brando, M. (2017). Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi4 P2. Physical review letters, 119(12), [126402]. https://doi.org/10.1103/PhysRevLett.119.126402

@article{70a72f8ae0f6402c8ecd580526d306b4,

title = "Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi4 P2",

abstract = "A ferromagnetic quantum critical point is thought not to exist in two- and three-dimensional metallic systems yet is realized in the Kondo lattice compound YbNi4(P,As)2, possibly due to its one-dimensionality. It is crucial to investigate the dimensionality of the Fermi surface of YbNi4P2 experimentally, but common probes such as angle-resolved photoemission spectroscopy and quantum oscillation measurements are lacking. Here, we study the magnetic-field dependence of transport and thermodynamic properties of YbNi4P2. The Kondo effect is continuously suppressed, and additionally we identify nine Lifshitz transitions between 0.4 and 18 T. We analyze the transport coefficients in detail and identify the type of Lifshitz transitions as neck or void type to gain information on the Fermi surface of YbNi4P2. The large number of Lifshitz transitions observed within this small energy window is unprecedented and results from the particular flat renormalized band structure with strong 4f-electron character shaped by the Kondo lattice effect.",

author = "H. Pfau and R. Daou and S. Friedemann and S. Karbassi and S. Ghannadzadeh and R. K{\"u}chler and S. Hamann and A. Steppke and D. Sun and M. K{\"o}nig and Mackenzie, {A. P.} and K. Kliemt and C. Krellner and M. Brando",

note = "Funding Information: We are indebted to C. Geibel, A. Gourgout, B. Schmidt, F. Steglich, and A. A. Varlamov for useful discussions. This work was supported by the German Research Foundation (DFG) through Grants No. BR4110/1-1, No. KR3831/4-1, No. KU3287/1-1, and Fermi-NESt. H. P. acknowledges the support from the Alexander von Humboldt Foundation. S. K. and S. F. acknowledge support from the EPSRC under Grant No. EP/N01085X/1 and for the Centre for Doctoral Training in Condensed Matter Physics Grant No. EP/L015544/1. Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

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doi = "10.1103/PhysRevLett.119.126402",

language = "English (US)",

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Pfau, H, Daou, R, Friedemann, S, Karbassi, S, Ghannadzadeh, S, Küchler, R, Hamann, S, Steppke, A, Sun, D, König, M, Mackenzie, AP, Kliemt, K, Krellner, C & Brando, M 2017, 'Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi4 P2', Physical review letters, vol. 119, no. 12, 126402. https://doi.org/10.1103/PhysRevLett.119.126402

TY - JOUR

T1 - Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi4 P2

AU - Pfau, H.

AU - Daou, R.

AU - Friedemann, S.

AU - Karbassi, S.

AU - Ghannadzadeh, S.

AU - Küchler, R.

AU - Hamann, S.

AU - Steppke, A.

AU - Sun, D.

AU - König, M.

AU - Mackenzie, A. P.

AU - Kliemt, K.

AU - Krellner, C.

AU - Brando, M.

N1 - Funding Information: We are indebted to C. Geibel, A. Gourgout, B. Schmidt, F. Steglich, and A. A. Varlamov for useful discussions. This work was supported by the German Research Foundation (DFG) through Grants No. BR4110/1-1, No. KR3831/4-1, No. KU3287/1-1, and Fermi-NESt. H. P. acknowledges the support from the Alexander von Humboldt Foundation. S. K. and S. F. acknowledge support from the EPSRC under Grant No. EP/N01085X/1 and for the Centre for Doctoral Training in Condensed Matter Physics Grant No. EP/L015544/1. Publisher Copyright: © 2017 American Physical Society.

PY - 2017/9/21

Y1 - 2017/9/21

N2 - A ferromagnetic quantum critical point is thought not to exist in two- and three-dimensional metallic systems yet is realized in the Kondo lattice compound YbNi4(P,As)2, possibly due to its one-dimensionality. It is crucial to investigate the dimensionality of the Fermi surface of YbNi4P2 experimentally, but common probes such as angle-resolved photoemission spectroscopy and quantum oscillation measurements are lacking. Here, we study the magnetic-field dependence of transport and thermodynamic properties of YbNi4P2. The Kondo effect is continuously suppressed, and additionally we identify nine Lifshitz transitions between 0.4 and 18 T. We analyze the transport coefficients in detail and identify the type of Lifshitz transitions as neck or void type to gain information on the Fermi surface of YbNi4P2. The large number of Lifshitz transitions observed within this small energy window is unprecedented and results from the particular flat renormalized band structure with strong 4f-electron character shaped by the Kondo lattice effect.

AB - A ferromagnetic quantum critical point is thought not to exist in two- and three-dimensional metallic systems yet is realized in the Kondo lattice compound YbNi4(P,As)2, possibly due to its one-dimensionality. It is crucial to investigate the dimensionality of the Fermi surface of YbNi4P2 experimentally, but common probes such as angle-resolved photoemission spectroscopy and quantum oscillation measurements are lacking. Here, we study the magnetic-field dependence of transport and thermodynamic properties of YbNi4P2. The Kondo effect is continuously suppressed, and additionally we identify nine Lifshitz transitions between 0.4 and 18 T. We analyze the transport coefficients in detail and identify the type of Lifshitz transitions as neck or void type to gain information on the Fermi surface of YbNi4P2. The large number of Lifshitz transitions observed within this small energy window is unprecedented and results from the particular flat renormalized band structure with strong 4f-electron character shaped by the Kondo lattice effect.

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DO - 10.1103/PhysRevLett.119.126402

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JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi4 P2

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