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  Observation of Antiferromagnetic Order as Odd-Parity Multipoles inside the Superconducting Phase in CeRh2As2

Kibune, M., Kitagawa, S., Kinjo, K., Ogata, S., Manago, M., Taniguchi, T., et al. (2022). Observation of Antiferromagnetic Order as Odd-Parity Multipoles inside the Superconducting Phase in CeRh2As2. Physical Review Letters, 128(5): 057002, pp. 1-6. doi:10.1103/PhysRevLett.128.057002.

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 Creators:
Kibune, Mayu1, Author
Kitagawa, Shunsaku1, Author
Kinjo, Katsuki1, Author
Ogata, Shiki1, Author
Manago, Masahiro1, Author
Taniguchi, Takanori1, Author
Ishida, Kenji1, Author
Brando, Manuel2, Author              
Hassinger, Elena3, Author              
Rosner, Helge4, Author              
Geibel, Christoph5, Author              
Khim, Seunghyun4, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863469              
3Physics of Unconventional Metals and Superconductors, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_2466700              
4Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
5Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465              

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Free keywords: Crystal symmetry, Nuclear quadrupole resonance, Antiferromagnetic orderings, Breakings, Crystals structures, Experimental validations, Model materials, Multipoles, Odd-parity, Spatial inversion symmetry, Super conducting phasis, Antiferromagnetism, article, magnetism, parity, superconductivity, transition temperature
 Abstract: Spatial inversion symmetry in crystal structures is closely related to the superconducting (SC) and magnetic properties of materials. Recently, several theoretical proposals that predict various interesting phenomena caused by the breaking of the local inversion symmetry have been presented. However, experimental validation has not yet progressed owing to the lack of model materials. Here we present evidence for antiferromagnetic (AFM) order in Formula Presented (SC transition temperature Formula Presented), wherein the Ce site breaks the local inversion symmetry. The evidence is based on the observation of different extents of broadening of the nuclear quadrupole resonance spectrum at two crystallographically inequivalent As sites. This AFM ordering breaks the inversion symmetry of this system, resulting in the activation of an odd-parity magnetic multipole. Moreover, the onset of antiferromagnetism Formula Presented within an SC phase, with Formula Presented, is quite unusual in systems wherein superconductivity coexists or competes with magnetism. Our observations show that Formula Presented is a promising system to study how the absence of local inversion symmetry induces or influences unconventional magnetic and SC states, as well as their interaction. © 2022 American Physical Society

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Language(s): eng - English
 Dates: 2022-02-032022-02-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1103/PhysRevLett.128.057002
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 128 (5) Sequence Number: 057002 Start / End Page: 1 - 6 Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1