Studies of magnetic behavior of spin-1/2 frustrated system Hg2Cu2F6S

Kawabata, S.; Yasui, Yukihiko; Kobayashi, Yoshihiko; Sato, Masanori; Igawa, Naoki; Kakurai, Kazuhisa

doi:10.1016/j.jmmm.2006.10.472

Cited by 6 publications

(2 citation statements)

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“…Recently, a quantum spin system, Hg 2 Cu 2 F 6 S, with S ¼ 1 2 on the pyrochlore lattice was discovered and its magnetic properties have been investigated [3]. Strong lattice distortion has not been observed.…”

Section: Introductionmentioning

confidence: 99%

Classical antiferromagnet on the pyrochlore lattice

Nakamura

Hirashima

2007

Journal of Magnetism and Magnetic Materials

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Section: Introductionmentioning

confidence: 99%

Classical antiferromagnet on the pyrochlore lattice

Nakamura

Hirashima

2007

Journal of Magnetism and Magnetic Materials

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“…There are, for example, fluorosulfide and oxyfluoride pyrochlores of the type A 2 B 2 F 6 O and A 2 B 2 F 6 S wherein the anions are site-ordered such that the one sulfur or one oxygen fully occupies the 48f Wyckoff site [129]. An NMR study on Mg 2 Cu 2 F 6 S, a rare example of a Cu 2+ pyrochlore lattice material, found that the nearest neighbor coupling was on the order of 100 K, yet there is no magnetic order down to 2 K, indicating strong frustration [130]. Low temperature topochemical anion substitution reactions may prove a promising route to synthesizing new mixed anion pyrochlore lattice materials, as has been shown in oxynitride molybdate pyrochlores [131].…”

Section: Future Directionsmentioning

confidence: 99%

Frustrated Magnetism in Fluoride and Chalcogenide Pyrochlore Lattice Materials

Reig-i-Plessis,

Hallas

2020

Preprint

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Pyrochlore lattices, which are found in two important classes of materials -the A2B2X7 pyrochlore family and the AB2X4 spinel family -are the quintessential 3-dimensional frustrated lattice architecture. While historically oxides (X = O) have played the starring role in this field, the past decade has seen material's synthesis breakthroughs that have lead to the emergence of fluoride (X = F) and chalcogenide (X = S, Se) pyrochlore lattice materials. In this Research Update, we summarize recent progress in understanding the magnetically frustrated ground states in three families of non-oxide pyrochlore lattice materials: (i) 3d-transition metal fluoride pyrochlores, (ii) rare earth chalcogenide spinels, and (iii) chromium chalcogenide spinels with a breathing pyrochlore lattice. We highlight how the change of anion may modify the single ion spin anisotropy due to crystal electric field effects, stabilize new magnetic atom combinations, or dramatically alter the exchange pathways and thereby lead to new magnetic ground states. We also consider a slate of future directions -materials with the potential to define the next decade of research in frustrated magnetism.

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