Spontaneous structural distortion of the metallic Shastry-Sutherland system Dy B4 by quadrupole-spin-lattice coupling

Hasung Sim; Seongsu Lee; Kun Pyo Hong; Jaehong Jeong; J. R. Zhang; T. Kamiyama; D. T. Adroja; C. A. Murray; S. P. Thompson; F. Iga; S. Ji; D. Khomskii; Je Geun Park

doi:10.1103/PhysRevB.94.195128

Spontaneous structural distortion of the metallic Shastry-Sutherland system Dy B4 by quadrupole-spin-lattice coupling

Hasung Sim, Seongsu Lee, Kun Pyo Hong, Jaehong Jeong, J. R. Zhang, T. Kamiyama, D. T. Adroja, C. A. Murray, S. P. Thompson, F. Iga, S. Ji, D. Khomskii, Je Geun Park

Physics

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

10 Citations (Scopus)

Abstract

DyB4 has a two-dimensional Shastry-Sutherland (Sh-S) lattice with strong Ising character of the Dy ions. Despite the intrinsic frustrations, it undergoes two successive transitions: a magnetic ordering at TN=20K and a quadrupole ordering at TQ=12.5K. From high-resolution neutron and synchrotron x-ray powder diffraction studies, we have obtained full structural information on this material in all phases and demonstrate that structural modifications occurring at quadrupolar transition lead to the lifting of frustrations inherent in the Sh-S model. Our paper thus provides a complete experimental picture of how the intrinsic frustration of the Sh-S lattice can be lifted by the coupling to quadrupole moments. We show that two other factors, i.e., strong spin-orbit coupling and long-range Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in metallic DyB4, play an important role in this behavior.

Original language	English
Article number	195128
Journal	Physical Review B
Volume	94
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevB.94.195128
Publication status	Published - 15 Nov 2016

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.94.195128

Cite this

Sim, H., Lee, S., Hong, K. P., Jeong, J., Zhang, J. R., Kamiyama, T., Adroja, D. T., Murray, C. A., Thompson, S. P., Iga, F., Ji, S., Khomskii, D., & Park, J. G. (2016). Spontaneous structural distortion of the metallic Shastry-Sutherland system Dy B4 by quadrupole-spin-lattice coupling. Physical Review B, 94(19), Article 195128. https://doi.org/10.1103/PhysRevB.94.195128

@article{85fac45ac749408abdf40ccc173a6e7c,

title = "Spontaneous structural distortion of the metallic Shastry-Sutherland system Dy B4 by quadrupole-spin-lattice coupling",

abstract = "DyB4 has a two-dimensional Shastry-Sutherland (Sh-S) lattice with strong Ising character of the Dy ions. Despite the intrinsic frustrations, it undergoes two successive transitions: a magnetic ordering at TN=20K and a quadrupole ordering at TQ=12.5K. From high-resolution neutron and synchrotron x-ray powder diffraction studies, we have obtained full structural information on this material in all phases and demonstrate that structural modifications occurring at quadrupolar transition lead to the lifting of frustrations inherent in the Sh-S model. Our paper thus provides a complete experimental picture of how the intrinsic frustration of the Sh-S lattice can be lifted by the coupling to quadrupole moments. We show that two other factors, i.e., strong spin-orbit coupling and long-range Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in metallic DyB4, play an important role in this behavior.",

author = "Hasung Sim and Seongsu Lee and Hong, {Kun Pyo} and Jaehong Jeong and Zhang, {J. R.} and T. Kamiyama and Adroja, {D. T.} and Murray, {C. A.} and Thompson, {S. P.} and F. Iga and S. Ji and D. Khomskii and Park, {Je Geun}",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = nov,

day = "15",

doi = "10.1103/PhysRevB.94.195128",

language = "English",

volume = "94",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "19",

}

TY - JOUR

T1 - Spontaneous structural distortion of the metallic Shastry-Sutherland system Dy B4 by quadrupole-spin-lattice coupling

AU - Sim, Hasung

AU - Lee, Seongsu

AU - Hong, Kun Pyo

AU - Jeong, Jaehong

AU - Zhang, J. R.

AU - Kamiyama, T.

AU - Adroja, D. T.

AU - Murray, C. A.

AU - Thompson, S. P.

AU - Iga, F.

AU - Ji, S.

AU - Khomskii, D.

AU - Park, Je Geun

PY - 2016/11/15

Y1 - 2016/11/15

N2 - DyB4 has a two-dimensional Shastry-Sutherland (Sh-S) lattice with strong Ising character of the Dy ions. Despite the intrinsic frustrations, it undergoes two successive transitions: a magnetic ordering at TN=20K and a quadrupole ordering at TQ=12.5K. From high-resolution neutron and synchrotron x-ray powder diffraction studies, we have obtained full structural information on this material in all phases and demonstrate that structural modifications occurring at quadrupolar transition lead to the lifting of frustrations inherent in the Sh-S model. Our paper thus provides a complete experimental picture of how the intrinsic frustration of the Sh-S lattice can be lifted by the coupling to quadrupole moments. We show that two other factors, i.e., strong spin-orbit coupling and long-range Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in metallic DyB4, play an important role in this behavior.

AB - DyB4 has a two-dimensional Shastry-Sutherland (Sh-S) lattice with strong Ising character of the Dy ions. Despite the intrinsic frustrations, it undergoes two successive transitions: a magnetic ordering at TN=20K and a quadrupole ordering at TQ=12.5K. From high-resolution neutron and synchrotron x-ray powder diffraction studies, we have obtained full structural information on this material in all phases and demonstrate that structural modifications occurring at quadrupolar transition lead to the lifting of frustrations inherent in the Sh-S model. Our paper thus provides a complete experimental picture of how the intrinsic frustration of the Sh-S lattice can be lifted by the coupling to quadrupole moments. We show that two other factors, i.e., strong spin-orbit coupling and long-range Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in metallic DyB4, play an important role in this behavior.

UR - http://www.scopus.com/inward/record.url?scp=84995579396&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.94.195128

DO - 10.1103/PhysRevB.94.195128

M3 - Article

AN - SCOPUS:84995579396

SN - 2469-9950

VL - 94

JO - Physical Review B

JF - Physical Review B

IS - 19

M1 - 195128

ER -

Spontaneous structural distortion of the metallic Shastry-Sutherland system Dy B4 by quadrupole-spin-lattice coupling

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this