Ultrasmall Yttrium Iron Garnet Nanoparticles with High Coercivity at Low Temperature Synthesized by Laser Ablation and Fragmentation of Pressed Powders
Abstract
Pulsed laser ablation of pressed yttrium iron garnet powders in water is studied and compared to the ablation of a single‐crystal target. We find that target porosity is a crucial factor, which has far‐reaching implications on nanoparticle productivity. Although nanoparticle size distributions obtained by analytical disc centrifugation and transmission electron microscopy (TEM) are in agreement, X‐ray diffraction and energy dispersive X‐ray analysis show that only nanoparticles obtained from targets with densities close to that of a bulk target lead to comparable properties. Our findings also show why the gravimetrical measurement of nanoparticle productivity is often flawed and needs to be complemented by colloidal productivity measurements. The synthesized YIG nanoparticles are further reduced in size by laser fragmentation to obtain sizes smaller than 3 nm. Since the particle diameters are close to the YIG lattice constant, these ultrasmall nanoparticles reveal an immense change of the magnetic properties, exhibiting huge coercivity (0.11 T) and irreversibility fields (8 T) at low temperatures.
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The apparent contradiction between gravimetric and absorbance results can be attributed to formation of larger particles from low-density targets, which led to higher gravimetric productivity values.
“However, the apparent contradiction can be attributed to the formation of larger particles in the micro-and millimeter range from the low-density targets, which led to higher productivity values in gravimetric measurements.”
From Green nanoparticle synthesis at scale: a perspective on overcoming the limits of pulsed laser ablation in liquids for high-throughput production (2023) · cites this paper as [48]
Micro-powder-pressed targets showed the highest productivity in the gravimetrical approach compared to nanopowder-pressed and bulk targets.
“The micro-powder-pressed targets showed the highest productivity in the gravimetrical approach compared to the nanopowder-pressed and bulk targets.”
From Green nanoparticle synthesis at scale: a perspective on overcoming the limits of pulsed laser ablation in liquids for high-throughput production (2023) · cites this paper as [48]
Bigger particles settled at the bottom in less than one minute and did not increase the concentration of the colloid.
“The bigger particles already settled at the bottom in less than one minute, thus, did not increase the concentration of the colloid.”
From Green nanoparticle synthesis at scale: a perspective on overcoming the limits of pulsed laser ablation in liquids for high-throughput production (2023) · cites this paper as [48]
Absorbance values remained fairly consistent across the three samples.
“The absorption measurements indicated that the absorbance values remained fairly consistent across the three samples.”
From Green nanoparticle synthesis at scale: a perspective on overcoming the limits of pulsed laser ablation in liquids for high-throughput production (2023) · cites this paper as [48]
Cites
Streubel, R., Barcikowski, S., & Gökce, B. (2016) · Optics Letters · doi:10.1364/ol.41.001486 · Cited by 283 · see citing works
Self-citationWagener, P., Jakobi, J., Rehbock, C., Chakravadhanula, V. S. K., Thede, C., Wiedwald, U., Bartsch, M., Kienle, L., & Barcikowski, S. (2016) · Scientific Reports · doi:10.1038/srep23352 · Cited by 150 · see citing works
Self-citationNeumeister, A., Jakobi, J., Rehbock, C., Moysig, J., & Barcikowski, S. (2014) · Phys. Chem. Chem. Phys. · doi:10.1039/c4cp03316g · Cited by 125 · see citing works
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Laser Synthesis and Processing of Colloids: Fundamentals and Applications
Zhang, D., Gökce, B., & Barcikowski, S. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00468 · Cited by 1,344 · see citing works
Self-citationKhairani, I. Y., Mínguez-Vega, G., Doñate-Buendía, C., & Gökce, B. (2023) · Physical Chemistry Chemical Physics · doi:10.1039/d3cp01214j · Cited by 130 · see citing works
Self-citationKalus, M.-R., Bärsch, N., Streubel, R., Gökce, E., Barcikowski, S., & Gökce, B. (2017) · Physical Chemistry Chemical Physics · doi:10.1039/c6cp07011f · Cited by 109 · see citing works
Self-citationDittrich, S., Streubel, R., McDonnell, C., Huber, H. P., Barcikowski, S., & Gökce, B. (2019) · Applied Physics A · doi:10.1007/s00339-019-2704-8 · Cited by 53 · see citing works
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- Authors
- Schmitz, T., Wiedwald, U., Dubs, C., & Gökce, B.
- Affiliations
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE) University of Duisburg-Essen Universitaetsstr. 7 45141 Essen Germany
- University of Duisburg-Essen (DE)
- Innovent (DE)
- Corresponding author
- Gökce, Bilal
- Venue
- ChemPhysChem
- Publisher
- Wiley
- Published
- 2017-02-17
- Volume
- 18
- Issue
- 9
- Pages
- 1125-1132
- ISSN
- 1439-4235 (ISSN-L)
- 1439-7641
- OpenAlex
- W2562729833
- Cited by
- 32
- References
- 3
- Citations by year
- 2025: 2 · 2024: 3 · 2023: 3 · 2022: 2 · 2021: 2 · 2020: 9 · 2019: 2 · 2018: 5 · 2017: 4
- FWCI
- 1.77
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ChemPhysChem (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Laser-Ablation Synthesis of Nanoparticles
- Physical Sciences › Materials Science › Materials Chemistry › Magnetic Properties and Synthesis of Ferrites
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Geomagnetism and Paleomagnetism Studies
- Keywords
- yttrium iron garnet, ultrasmall nanoparticles, laser ablation, laser fragmentation, target porosity, nanoparticle size distribution, coercivity, low-temperature magnetic properties, irreversibility field, colloidal synthesis
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