Signatures of a magnetic superstructure phase induced by ultrahigh magnetic fields in a breathing pyrochlore antiferromagnet.
breathing anisotropy
frustrated magnetism
spin–lattice coupling
ultrahigh magnetic fields
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
15 Aug 2023
15 Aug 2023
Historique:
medline:
7
8
2023
pubmed:
7
8
2023
entrez:
7
8
2023
Statut:
ppublish
Résumé
The mutual coupling of spin and lattice degrees of freedom is ubiquitous in magnetic materials and potentially creates exotic magnetic states in response to the external magnetic field. Particularly, geometrically frustrated magnets serve as a fertile playground for realizing magnetic superstructure phases. Here, we observe an unconventional two-step magnetostructural transition prior to a half-magnetization plateau in a breathing pyrochlore chromium spinel by means of state-of-the-art magnetization and magnetostriction measurements in ultrahigh magnetic fields available up to 600 T. Considering a microscopic magnetoelastic theory, the intermediate-field phase can be assigned to a magnetic superstructure with a three-dimensional periodic array of 3-up-1-down and canted 2-up-2-down spin molecules. We attribute the emergence of the magnetic superstructure to a unique combination of the strong spin-lattice coupling and large breathing anisotropy.
Identifiants
pubmed: 37549272
doi: 10.1073/pnas.2302756120
pmc: PMC10438373
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2302756120Subventions
Organisme : MEXT | Japan Society for the Promotion of Science (JSPS)
ID : 20J10988
Organisme : MEXT | Japan Society for the Promotion of Science (JSPS)
ID : 21K03469
Références
Phys Rev Lett. 2002 Apr 22;88(16):167207
pubmed: 11955262
Phys Rev Lett. 2000 Apr 17;84(16):3718-21
pubmed: 11019185
Phys Rev B Condens Matter. 1996 Aug 15;54(8):5368-5380
pubmed: 9986496
Phys Rev B Condens Matter. 1995 Aug 15;52(8):R5467-R5470
pubmed: 9981806
Phys Rev Lett. 2006 Mar 10;96(9):097207
pubmed: 16606312
Phys Rev Lett. 2008 Feb 22;100(7):077201
pubmed: 18352589
Nat Commun. 2023 Apr 4;14(1):1744
pubmed: 37015917
Nat Commun. 2013;4:2287
pubmed: 23912842
Phys Rev Lett. 2011 Nov 11;107(20):207203
pubmed: 22181764
Rev Sci Instrum. 2018 Sep;89(9):095106
pubmed: 30278742
Phys Rev Lett. 2017 Jun 9;118(23):237203
pubmed: 28644650
Rev Sci Instrum. 2017 Aug;88(8):083906
pubmed: 28863652
Phys Rev Lett. 2004 Nov 5;93(19):197203
pubmed: 15600874
Phys Rev Lett. 2005 Dec 9;95(24):247204
pubmed: 16384420
Phys Rev Lett. 2019 Jul 12;123(2):027205
pubmed: 31386536
Phys Rev Lett. 2013 Mar 1;110(9):097203
pubmed: 23496743
Phys Rev Lett. 2021 Oct 1;127(14):147205
pubmed: 34652174
Phys Rev Lett. 1993 Jun 7;70(23):3651-3654
pubmed: 10053928
Nat Commun. 2019 Mar 15;10(1):1229
pubmed: 30874548
Science. 2002 Oct 11;298(5592):395-9
pubmed: 12376697
Phys Rev Lett. 2013 Sep 27;111(13):137204
pubmed: 24116813
Phys Rev Lett. 2010 Jan 29;104(4):047201
pubmed: 20366734
Phys Rev Lett. 1996 Oct 28;77(18):3865-3868
pubmed: 10062328