Phase diagram with an enhanced spin-glass region of the mixed Ising–XY magnet LiHo{x}Er{1-x}F{4}

Piatek, J. O.; Dalla Piazza, B.; Nikseresht, N.; Tsyrulin, N.; Živković, I.; Krämer, Karl; Laver, M.; Prokes, K.; Mataš, S.; Christensen, N. B.; Rønnow, H. M. (2013). Phase diagram with an enhanced spin-glass region of the mixed Ising–XY magnet LiHo{x}Er{1-x}F{4}. Physical review. B - condensed matter and materials physics, 88(1), pp. 1-11. Ridge, N.Y.: American Physical Society 10.1103/PhysRevB.88.014408

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We present the experimental phase diagram of LiHoxEr1-xF4, a dilution series of dipolar-coupled model magnets. The phase diagram was determined using a combination of ac susceptibility and neutron scattering. Three unique phases in addition to the Ising ferromagnet LiHoF4 and the XY antiferromagnet LiErF4 have been identified. Below x = 0.86, an embedded spin-glass phase is observed, where a spin glass exists within the ferromagnetic structure. Below x = 0.57, an Ising spin glass is observed consisting of frozen needlelike clusters. For x ∼ 0.3–0.1, an antiferromagnetically coupled spin glass occurs. A reduction of TC(x) for the ferromagnet is observed which disobeys the mean-field predictions that worked for LiHoxY1-xF4.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Krämer, Karl

Subjects:

500 Science > 530 Physics
500 Science > 540 Chemistry

ISSN:

1098-0121

Publisher:

American Physical Society

Language:

English

Submitter:

Karl Krämer

Date Deposited:

16 Dec 2013 15:52

Last Modified:

24 Feb 2016 09:32

Publisher DOI:

10.1103/PhysRevB.88.014408

BORIS DOI:

10.7892/boris.39115

URI:

https://boris.unibe.ch/id/eprint/39115

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