Dipolar antiferromagnetism and quantum criticality in LiErF4

Conradin Kraemer; Neda Nikseresht; Julian O. Piatek; Nikolay Tsyrulin; Bastien Dalla Piazza; Klaus Kiefer; Bastian Klemke; Thomas F. Rosenbaum; Gabriel Aeppli; Ché Gannarelli; Karel Prokes; Andrey Podlesnyak; Thierry Strässle; Lukas Keller; Oksana Zaharko; Karl W. Krämer; Henrik M. Rønnow

doi:10.1126/science.1221878

Dipolar antiferromagnetism and quantum criticality in LiErF₄

Conradin Kraemer, Neda Nikseresht, Julian O. Piatek, Nikolay Tsyrulin, Bastien Dalla Piazza, Klaus Kiefer, Bastian Klemke, Thomas F. Rosenbaum, Gabriel Aeppli, Ché Gannarelli, Karel Prokes, Andrey Podlesnyak, Thierry Strässle, Lukas Keller, Oksana Zaharko, Karl W. Krämer, Henrik M. Rønnow

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

46 Scopus citations

Abstract

Magnetism has been predicted to occur in systems in which dipolar interactions dominate exchange. We present neutron scattering, specific heat, and magnetic susceptibility data for LiErF₄, establishing it as a model dipolar-coupled antiferromagnet with planar spin-anisotropy and a quantum phase transition in applied field H_c|| = 4.0 ± 0.1 kilo-oersteds. We discovered non-mean-field critical scaling for the classical phase transition at the antiferromagnetic transition temperature that is consistent with the two-dimensional XY/h₄ universality class; in accord with this, the quantum phase transition at H_c exhibits three-dimensional classical behavior. The effective dimensional reduction may be a consequence of the intrinsic frustrated nature of the dipolar interaction, which strengthens the role of fluctuations.

Original language	English
Pages (from-to)	1416-1419
Number of pages	4
Journal	Science
Volume	336
Issue number	6087
DOIs	https://doi.org/10.1126/science.1221878
State	Published - Jun 15 2012
Externally published	Yes

Funding

Funders	Funder number
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	121397, 132877, 133815

Access to Document

10.1126/science.1221878

Cite this

Kraemer, C., Nikseresht, N., Piatek, J. O., Tsyrulin, N., Piazza, B. D., Kiefer, K., Klemke, B., Rosenbaum, T. F., Aeppli, G., Gannarelli, C., Prokes, K., Podlesnyak, A., Strässle, T., Keller, L., Zaharko, O., Krämer, K. W., & Rønnow, H. M. (2012). Dipolar antiferromagnetism and quantum criticality in LiErF₄. Science, 336(6087), 1416-1419. https://doi.org/10.1126/science.1221878

@article{df9431e6463547f6a66f45c13f7ad75c,

title = "Dipolar antiferromagnetism and quantum criticality in LiErF4",

abstract = "Magnetism has been predicted to occur in systems in which dipolar interactions dominate exchange. We present neutron scattering, specific heat, and magnetic susceptibility data for LiErF4, establishing it as a model dipolar-coupled antiferromagnet with planar spin-anisotropy and a quantum phase transition in applied field Hc|| = 4.0 ± 0.1 kilo-oersteds. We discovered non-mean-field critical scaling for the classical phase transition at the antiferromagnetic transition temperature that is consistent with the two-dimensional XY/h4 universality class; in accord with this, the quantum phase transition at Hc exhibits three-dimensional classical behavior. The effective dimensional reduction may be a consequence of the intrinsic frustrated nature of the dipolar interaction, which strengthens the role of fluctuations.",

author = "Conradin Kraemer and Neda Nikseresht and Piatek, {Julian O.} and Nikolay Tsyrulin and Piazza, {Bastien Dalla} and Klaus Kiefer and Bastian Klemke and Rosenbaum, {Thomas F.} and Gabriel Aeppli and Ch{\'e} Gannarelli and Karel Prokes and Andrey Podlesnyak and Thierry Str{\"a}ssle and Lukas Keller and Oksana Zaharko and Kr{\"a}mer, {Karl W.} and R{\o}nnow, {Henrik M.}",

year = "2012",

month = jun,

day = "15",

doi = "10.1126/science.1221878",

language = "English",

volume = "336",

pages = "1416--1419",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6087",

}

TY - JOUR

T1 - Dipolar antiferromagnetism and quantum criticality in LiErF4

AU - Kraemer, Conradin

AU - Nikseresht, Neda

AU - Piatek, Julian O.

AU - Tsyrulin, Nikolay

AU - Piazza, Bastien Dalla

AU - Kiefer, Klaus

AU - Klemke, Bastian

AU - Rosenbaum, Thomas F.

AU - Aeppli, Gabriel

AU - Gannarelli, Ché

AU - Prokes, Karel

AU - Podlesnyak, Andrey

AU - Strässle, Thierry

AU - Keller, Lukas

AU - Zaharko, Oksana

AU - Krämer, Karl W.

AU - Rønnow, Henrik M.

PY - 2012/6/15

Y1 - 2012/6/15

N2 - Magnetism has been predicted to occur in systems in which dipolar interactions dominate exchange. We present neutron scattering, specific heat, and magnetic susceptibility data for LiErF4, establishing it as a model dipolar-coupled antiferromagnet with planar spin-anisotropy and a quantum phase transition in applied field Hc|| = 4.0 ± 0.1 kilo-oersteds. We discovered non-mean-field critical scaling for the classical phase transition at the antiferromagnetic transition temperature that is consistent with the two-dimensional XY/h4 universality class; in accord with this, the quantum phase transition at Hc exhibits three-dimensional classical behavior. The effective dimensional reduction may be a consequence of the intrinsic frustrated nature of the dipolar interaction, which strengthens the role of fluctuations.

AB - Magnetism has been predicted to occur in systems in which dipolar interactions dominate exchange. We present neutron scattering, specific heat, and magnetic susceptibility data for LiErF4, establishing it as a model dipolar-coupled antiferromagnet with planar spin-anisotropy and a quantum phase transition in applied field Hc|| = 4.0 ± 0.1 kilo-oersteds. We discovered non-mean-field critical scaling for the classical phase transition at the antiferromagnetic transition temperature that is consistent with the two-dimensional XY/h4 universality class; in accord with this, the quantum phase transition at Hc exhibits three-dimensional classical behavior. The effective dimensional reduction may be a consequence of the intrinsic frustrated nature of the dipolar interaction, which strengthens the role of fluctuations.

UR - http://www.scopus.com/inward/record.url?scp=84862270066&partnerID=8YFLogxK

U2 - 10.1126/science.1221878

DO - 10.1126/science.1221878

M3 - Article

AN - SCOPUS:84862270066

SN - 0036-8075

VL - 336

SP - 1416

EP - 1419

JO - Science

JF - Science

IS - 6087

ER -

Dipolar antiferromagnetism and quantum criticality in LiErF₄

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this