Electronic structure and nesting-driven enhancement of the RKKY interaction at the magnetic ordering propagation vector in Gd2PdSi3 and Tb2PdSi3

D. S. Inosov; D. V. Evtushinsky; A. Koitzsch; V. B. Zabolotnyy; S. V. Borisenko; A. A. Kordyuk; M. Frontzek; M. Loewenhaupt; W. Löser; I. Mazilu; H. Bitterlich; G. Behr; J. U. Hoffmann; R. Follath; B. Büchner

doi:10.1103/PhysRevLett.102.046401

Electronic structure and nesting-driven enhancement of the RKKY interaction at the magnetic ordering propagation vector in Gd2PdSi3 and Tb2PdSi3

D. S. Inosov, D. V. Evtushinsky, A. Koitzsch, V. B. Zabolotnyy, S. V. Borisenko, A. A. Kordyuk, M. Frontzek, M. Loewenhaupt, W. Löser, I. Mazilu, H. Bitterlich, G. Behr, J. U. Hoffmann, R. Follath, B. Büchner

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Abstract

Measurements of the low-energy electronic structure in Gd2PdSi3 and Tb2PdSi3 by means of angle-resolved photoelectron spectroscopy reveal a Fermi surface consisting of an electron barrel at the Γ point surrounded by spindle-shaped electron pockets originating from the same band. The calculated momentum-dependent RKKY coupling strength is peaked at the 12ΓK wave vector, which coincides with the propagation vector of the low-temperature in-plane magnetic order observed by neutron diffraction, thereby demonstrating the decisive role of the Fermi surface geometry in explaining the complex magnetic ground state of ternary rare earth silicides.

Original language	English
Article number	046401
Journal	Physical Review Letters
Volume	102
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.102.046401
State	Published - Jan 26 2009
Externally published	Yes

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Inosov, D. S., Evtushinsky, D. V., Koitzsch, A., Zabolotnyy, V. B., Borisenko, S. V., Kordyuk, A. A., Frontzek, M., Loewenhaupt, M., Löser, W., Mazilu, I., Bitterlich, H., Behr, G., Hoffmann, J. U., Follath, R., & Büchner, B. (2009). Electronic structure and nesting-driven enhancement of the RKKY interaction at the magnetic ordering propagation vector in Gd2PdSi3 and Tb2PdSi3. Physical Review Letters, 102(4), Article 046401. https://doi.org/10.1103/PhysRevLett.102.046401

@article{6f307a3f82f14f98b3f8e2a41223d077,

title = "Electronic structure and nesting-driven enhancement of the RKKY interaction at the magnetic ordering propagation vector in Gd2PdSi3 and Tb2PdSi3",

abstract = "Measurements of the low-energy electronic structure in Gd2PdSi3 and Tb2PdSi3 by means of angle-resolved photoelectron spectroscopy reveal a Fermi surface consisting of an electron barrel at the Γ point surrounded by spindle-shaped electron pockets originating from the same band. The calculated momentum-dependent RKKY coupling strength is peaked at the 12ΓK wave vector, which coincides with the propagation vector of the low-temperature in-plane magnetic order observed by neutron diffraction, thereby demonstrating the decisive role of the Fermi surface geometry in explaining the complex magnetic ground state of ternary rare earth silicides.",

author = "Inosov, \{D. S.\} and Evtushinsky, \{D. V.\} and A. Koitzsch and Zabolotnyy, \{V. B.\} and Borisenko, \{S. V.\} and Kordyuk, \{A. A.\} and M. Frontzek and M. Loewenhaupt and W. L{\"o}ser and I. Mazilu and H. Bitterlich and G. Behr and Hoffmann, \{J. U.\} and R. Follath and B. B{\"u}chner",

year = "2009",

month = jan,

day = "26",

doi = "10.1103/PhysRevLett.102.046401",

language = "English",

volume = "102",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "4",

}

Inosov, DS, Evtushinsky, DV, Koitzsch, A, Zabolotnyy, VB, Borisenko, SV, Kordyuk, AA, Frontzek, M, Loewenhaupt, M, Löser, W, Mazilu, I, Bitterlich, H, Behr, G, Hoffmann, JU, Follath, R & Büchner, B 2009, 'Electronic structure and nesting-driven enhancement of the RKKY interaction at the magnetic ordering propagation vector in Gd2PdSi3 and Tb2PdSi3', Physical Review Letters, vol. 102, no. 4, 046401. https://doi.org/10.1103/PhysRevLett.102.046401

TY - JOUR

T1 - Electronic structure and nesting-driven enhancement of the RKKY interaction at the magnetic ordering propagation vector in Gd2PdSi3 and Tb2PdSi3

AU - Inosov, D. S.

AU - Evtushinsky, D. V.

AU - Koitzsch, A.

AU - Zabolotnyy, V. B.

AU - Borisenko, S. V.

AU - Kordyuk, A. A.

AU - Frontzek, M.

AU - Loewenhaupt, M.

AU - Löser, W.

AU - Mazilu, I.

AU - Bitterlich, H.

AU - Behr, G.

AU - Hoffmann, J. U.

AU - Follath, R.

AU - Büchner, B.

PY - 2009/1/26

Y1 - 2009/1/26

N2 - Measurements of the low-energy electronic structure in Gd2PdSi3 and Tb2PdSi3 by means of angle-resolved photoelectron spectroscopy reveal a Fermi surface consisting of an electron barrel at the Γ point surrounded by spindle-shaped electron pockets originating from the same band. The calculated momentum-dependent RKKY coupling strength is peaked at the 12ΓK wave vector, which coincides with the propagation vector of the low-temperature in-plane magnetic order observed by neutron diffraction, thereby demonstrating the decisive role of the Fermi surface geometry in explaining the complex magnetic ground state of ternary rare earth silicides.

AB - Measurements of the low-energy electronic structure in Gd2PdSi3 and Tb2PdSi3 by means of angle-resolved photoelectron spectroscopy reveal a Fermi surface consisting of an electron barrel at the Γ point surrounded by spindle-shaped electron pockets originating from the same band. The calculated momentum-dependent RKKY coupling strength is peaked at the 12ΓK wave vector, which coincides with the propagation vector of the low-temperature in-plane magnetic order observed by neutron diffraction, thereby demonstrating the decisive role of the Fermi surface geometry in explaining the complex magnetic ground state of ternary rare earth silicides.

UR - https://www.scopus.com/pages/publications/60149095571

U2 - 10.1103/PhysRevLett.102.046401

DO - 10.1103/PhysRevLett.102.046401

M3 - Article

AN - SCOPUS:60149095571

SN - 0031-9007

VL - 102

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

M1 - 046401

ER -

Electronic structure and nesting-driven enhancement of the RKKY interaction at the magnetic ordering propagation vector in Gd2PdSi3 and Tb2PdSi3

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