Probing spin frustration in high-symmetry magnetic nanomolecules by inelastic neutron scattering

V. O. Garlea; S. E. Nagler; J. L. Zarestky; C. Stassis; D. Vaknin; P. Kögerler; D. F. McMorrow; C. Niedermayer; D. A. Tennant; B. Lake; Y. Qiu; M. Exler; J. Schnack; M. Luban

doi:10.1103/PhysRevB.73.024414

Probing spin frustration in high-symmetry magnetic nanomolecules by inelastic neutron scattering

V. O. Garlea
, S. E. Nagler
, J. L. Zarestky
, C. Stassis
, D. Vaknin
, P. Kögerler
, D. F. McMorrow
, C. Niedermayer
, D. A. Tennant
, B. Lake
, Y. Qiu
, M. Exler
, J. Schnack
, M. Luban

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

Low temperature inelastic neutron scattering studies have been performed to characterize the low energy magnetic excitation spectrum of the magnetic nanomolecule { Mo72 Fe30 }. This unique highly symmetric cluster features spin frustration and is one of the largest discrete magnetic molecules studied to date by inelastic neutron scattering. The 30 s=52 FeIII ions, embedded in a spherical polyoxomolybdate molecule, occupy the vertices of an icosidodecahedron and are coupled via nearest-neighbor antiferromagnetic interactions. The overall energy scale of the excitation and the gross features of the temperature dependence of the observed neutron scattering are explained by a quantum model of the frustrated spin cluster. However, no satisfactory theoretical explanation is yet available for the observed magnetic field dependence.

Original language	English
Article number	024414
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	73
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.73.024414
State	Published - 2006
Externally published	Yes

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Garlea, V. O., Nagler, S. E., Zarestky, J. L., Stassis, C., Vaknin, D., Kögerler, P., McMorrow, D. F., Niedermayer, C., Tennant, D. A., Lake, B., Qiu, Y., Exler, M., Schnack, J., & Luban, M. (2006). Probing spin frustration in high-symmetry magnetic nanomolecules by inelastic neutron scattering. Physical Review B - Condensed Matter and Materials Physics, 73(2), Article 024414. https://doi.org/10.1103/PhysRevB.73.024414

@article{04072f2bf6c0452caba0a7872128302d,

title = "Probing spin frustration in high-symmetry magnetic nanomolecules by inelastic neutron scattering",

abstract = "Low temperature inelastic neutron scattering studies have been performed to characterize the low energy magnetic excitation spectrum of the magnetic nanomolecule \{ Mo72 Fe30 \}. This unique highly symmetric cluster features spin frustration and is one of the largest discrete magnetic molecules studied to date by inelastic neutron scattering. The 30 s=52 FeIII ions, embedded in a spherical polyoxomolybdate molecule, occupy the vertices of an icosidodecahedron and are coupled via nearest-neighbor antiferromagnetic interactions. The overall energy scale of the excitation and the gross features of the temperature dependence of the observed neutron scattering are explained by a quantum model of the frustrated spin cluster. However, no satisfactory theoretical explanation is yet available for the observed magnetic field dependence.",

author = "Garlea, \{V. O.\} and Nagler, \{S. E.\} and Zarestky, \{J. L.\} and C. Stassis and D. Vaknin and P. K{\"o}gerler and McMorrow, \{D. F.\} and C. Niedermayer and Tennant, \{D. A.\} and B. Lake and Y. Qiu and M. Exler and J. Schnack and M. Luban",

year = "2006",

doi = "10.1103/PhysRevB.73.024414",

language = "English",

volume = "73",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "2",

}

Garlea, VO, Nagler, SE, Zarestky, JL, Stassis, C, Vaknin, D, Kögerler, P, McMorrow, DF, Niedermayer, C, Tennant, DA, Lake, B, Qiu, Y, Exler, M, Schnack, J & Luban, M 2006, 'Probing spin frustration in high-symmetry magnetic nanomolecules by inelastic neutron scattering', Physical Review B - Condensed Matter and Materials Physics, vol. 73, no. 2, 024414. https://doi.org/10.1103/PhysRevB.73.024414

TY - JOUR

T1 - Probing spin frustration in high-symmetry magnetic nanomolecules by inelastic neutron scattering

AU - Garlea, V. O.

AU - Nagler, S. E.

AU - Zarestky, J. L.

AU - Stassis, C.

AU - Vaknin, D.

AU - Kögerler, P.

AU - McMorrow, D. F.

AU - Niedermayer, C.

AU - Tennant, D. A.

AU - Lake, B.

AU - Qiu, Y.

AU - Exler, M.

AU - Schnack, J.

AU - Luban, M.

PY - 2006

Y1 - 2006

N2 - Low temperature inelastic neutron scattering studies have been performed to characterize the low energy magnetic excitation spectrum of the magnetic nanomolecule { Mo72 Fe30 }. This unique highly symmetric cluster features spin frustration and is one of the largest discrete magnetic molecules studied to date by inelastic neutron scattering. The 30 s=52 FeIII ions, embedded in a spherical polyoxomolybdate molecule, occupy the vertices of an icosidodecahedron and are coupled via nearest-neighbor antiferromagnetic interactions. The overall energy scale of the excitation and the gross features of the temperature dependence of the observed neutron scattering are explained by a quantum model of the frustrated spin cluster. However, no satisfactory theoretical explanation is yet available for the observed magnetic field dependence.

AB - Low temperature inelastic neutron scattering studies have been performed to characterize the low energy magnetic excitation spectrum of the magnetic nanomolecule { Mo72 Fe30 }. This unique highly symmetric cluster features spin frustration and is one of the largest discrete magnetic molecules studied to date by inelastic neutron scattering. The 30 s=52 FeIII ions, embedded in a spherical polyoxomolybdate molecule, occupy the vertices of an icosidodecahedron and are coupled via nearest-neighbor antiferromagnetic interactions. The overall energy scale of the excitation and the gross features of the temperature dependence of the observed neutron scattering are explained by a quantum model of the frustrated spin cluster. However, no satisfactory theoretical explanation is yet available for the observed magnetic field dependence.

UR - https://www.scopus.com/pages/publications/33244465189

U2 - 10.1103/PhysRevB.73.024414

DO - 10.1103/PhysRevB.73.024414

M3 - Article

AN - SCOPUS:33244465189

SN - 1098-0121

VL - 73

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 2

M1 - 024414

ER -

Probing spin frustration in high-symmetry magnetic nanomolecules by inelastic neutron scattering

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