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  Non-monotonic pressure dependence of high-field nematicity and magnetism in CeRhIn5

Helm, T., Grockowiak, A. D., Balakirev, F. F., Singleton, J., Betts, J. B., Shirer, K. R., et al. (2020). Non-monotonic pressure dependence of high-field nematicity and magnetism in CeRhIn5. Nature Communications, 11: 3482, pp. 1-10. doi:10.1038/s41467-020-17274-6.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-C752-D Version Permalink: http://hdl.handle.net/21.11116/0000-0006-C766-7
Genre: Journal Article

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 Creators:
Helm, Toni1, Author              
Grockowiak, Audrey D.2, Author
Balakirev, Fedor F.2, Author
Singleton, John2, Author
Betts, Jonathan B.2, Author
Shirer, Kent R.1, Author              
König, Markus3, Author              
Förster, Tobias2, Author
Bauer, Eric D.2, Author
Ronning, Filip2, Author
Tozer, Stanley W.2, Author
Moll, Philip J. W.1, Author              
Affiliations:
1Physics of Microstructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_2466701              
2External Organizations, ou_persistent22              
3Markus König, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863470              

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 Abstract: CeRhIn5 provides a textbook example of quantum criticality in a heavy fermion system: Pressure suppresses local-moment antiferromagnetic (AFM) order and induces superconductivity in a dome around the associated quantum critical point (QCP) near pc ≈ 23 kbar. Strong magnetic fields also suppress the AFM order at a field-induced QCP at Bc ≈ 50 T. In its vicinity, a nematic phase at B* ≈ 28 T characterized by a large in-plane resistivity anisotropy emerges. Here, we directly investigate the interrelation between these phenomena via magnetoresistivity measurements under high pressure. As pressure increases, the nematic transition shifts to higher fields, until it vanishes just below pc. While pressure suppresses magnetic order in zero field as pc is approached, we find magnetism to strengthen under strong magnetic fields due to suppression of the Kondo effect. We reveal a strongly non-mean-field-like phase diagram, much richer than the common local-moment description of CeRhIn5 would suggest. © 2020, The Author(s).

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Language(s): eng - English
 Dates: 2020-07-132020-07-13
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1038/s41467-020-17274-6
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 11 Sequence Number: 3482 Start / End Page: 1 - 10 Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723