Anisotropy: Spin order and magnetization of single-crystalline barlowite
Abstract
Despite decades-long fascination, the difficulty of maintaining high lattice symmetry in frustrated nonbipartite S = $$\frac{1}{2}$$ materials that can also be made into high-quality single crystals has been a persistent challenge. We report magnetization studies of a single-crystal sample of barlowite, Cu4 (OH)6 FBr, which has a geometrically perfect kagome motif. At T ≤ 4.2 K and 35 ≤ μ0H ≤ 65 T, the interlayer spins are fully polarized, and the kagome-intrinsic magnetization is consistent with a Heisenberg model having J/kB = -180 K. Several field-driven anomalies are observed, having varied scalings with temperature. At an applied field, kagome disorder caused by the interlayer spins is smaller than that in herbertsmithite. At T ≤ 15 K, the bulk magnetic moment comes from the interlayer spins. An almost coplanar spin order suggests that the magnitude of in-plane Dzyaloshinskii-Moriya interaction is smaller than 0.006(6) J. On the other hand, the possibility of a spin-liquid state in the kagome lattice coexisting with ordered interlayer spins is left open.
- Authors:
-
- Univ. of Chicago, IL (United States). James Frank Inst. and Dept. of Physics; Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Univ. of Chicago, IL (United States). James Frank Inst. and Dept. of Physics
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; National Science Foundation (NSF), Arlington, VA (United States). Division of Materials Research
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1457234
- Alternate Identifier(s):
- OSTI ID: 1257493
- Report Number(s):
- LA-UR-15-22247
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1901319
- Grant/Contract Number:
- AC52-06NA25396; FG02-99ER45789; AC02-06CH11357; DMR-1157490
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 21; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION; antiferromagnetism; antiferromagnets; kagome lattice; single crystal materials; magnetization measurements; spin lattice models
Citation Formats
Han, Tian-Heng, Isaacs, Eric D., Schlueter, John A., and Singleton, John. Anisotropy: Spin order and magnetization of single-crystalline Cu4(OH)6FBr barlowite. United States: N. p., 2016.
Web. doi:10.1103/PhysRevB.93.214416.
Han, Tian-Heng, Isaacs, Eric D., Schlueter, John A., & Singleton, John. Anisotropy: Spin order and magnetization of single-crystalline Cu4(OH)6FBr barlowite. United States. https://doi.org/10.1103/PhysRevB.93.214416
Han, Tian-Heng, Isaacs, Eric D., Schlueter, John A., and Singleton, John. 2016.
"Anisotropy: Spin order and magnetization of single-crystalline Cu4(OH)6FBr barlowite". United States. https://doi.org/10.1103/PhysRevB.93.214416. https://www.osti.gov/servlets/purl/1457234.
@article{osti_1457234,
title = {Anisotropy: Spin order and magnetization of single-crystalline Cu4(OH)6FBr barlowite},
author = {Han, Tian-Heng and Isaacs, Eric D. and Schlueter, John A. and Singleton, John},
abstractNote = {Despite decades-long fascination, the difficulty of maintaining high lattice symmetry in frustrated nonbipartite S = $\frac{1}{2}$ materials that can also be made into high-quality single crystals has been a persistent challenge. We report magnetization studies of a single-crystal sample of barlowite, Cu4 (OH)6 FBr, which has a geometrically perfect kagome motif. At T ≤ 4.2 K and 35 ≤ μ0H ≤ 65 T, the interlayer spins are fully polarized, and the kagome-intrinsic magnetization is consistent with a Heisenberg model having J/kB = -180 K. Several field-driven anomalies are observed, having varied scalings with temperature. At an applied field, kagome disorder caused by the interlayer spins is smaller than that in herbertsmithite. At T ≤ 15 K, the bulk magnetic moment comes from the interlayer spins. An almost coplanar spin order suggests that the magnitude of in-plane Dzyaloshinskii-Moriya interaction is smaller than 0.006(6) J. On the other hand, the possibility of a spin-liquid state in the kagome lattice coexisting with ordered interlayer spins is left open.},
doi = {10.1103/PhysRevB.93.214416},
url = {https://www.osti.gov/biblio/1457234},
journal = {Physical Review B},
issn = {2469-9950},
number = 21,
volume = 93,
place = {United States},
year = {Wed Jun 15 00:00:00 EDT 2016},
month = {Wed Jun 15 00:00:00 EDT 2016}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
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Figures / Tables found in this record: