Investigation of metamagnetic transition in nanosized FeRh structures (hdl:21.15109/ARP/RHG3SO)

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Investigation of metamagnetic transition in nanosized FeRh structures

hdl:21.15109/ARP/RHG3SO

ARP

2025-06-26

1

Attila Lengyel; Maria A. Gracheva; Aleksandr I. Chumakov; Dimitrios Bessas; Szilárd Sajti; András Deák; Zsolt Zolnai; György Z. Radnóczi; Zsolt E. Horváth; Gergő Hegedűs; Dániel G. Merkel, 2025, "Investigation of metamagnetic transition in nanosized FeRh structures", https://hdl.handle.net/21.15109/ARP/RHG3SO, ARP, V1

Investigation of metamagnetic transition in nanosized FeRh structures

hdl:21.15109/ARP/RHG3SO

Attila Lengyel (HUN-REN Wigner RCP)

Maria A. Gracheva (HUN-REN CER)

Aleksandr I. Chumakov (ESRF)

Dimitrios Bessas (ESRF)

Szilárd Sajti (HUN-REN Wigner RCP)

András Deák (HUN-REN CER)

Zsolt Zolnai (HUN-REN CER)

György Z. Radnóczi (HUN-REN CER)

Zsolt E. Horváth (HUN-REN CER)

Gergő Hegedűs (HUN-REN Wigner RCP)

Dániel G. Merkel (HUN-REN Wigner RCP)

ARP

Attila Lengyel

Attila Lengyel

2025-06-23

https://hdl.handle.net/21.15109/ARP/RHG3SO

Engineering, Physics, iron-rhodium, size-effect, metamagnetic phase transition, magnetic nanostructures, nuclear resonance scattering

It is the data set belonging to the article of the same title published in Vacuum available at https://doi.org/10.1016/j.vacuum.2025.114533 Nanosized iron-rhodium islands of various sizes have been successfully prepared on MgO substrate by masked molecular beam epitaxy. Nuclear scattering of nanofocused synchrotron radiation was used to map the islands, and in-situ measure their magnetic states and metamagnetic phase transition. The findings demonstrated a pronounced size dependency in the metamagnetic behavior of the FeRh, as the size of the islands decreased, the metamagnetic phase transition changes until finally it disappears completely at certain threshold size. This suppression effect suggests that finite-size scaling plays a significant role in determining the magnetic characteristics of FeRh at the nanoscale. These results provide insight into the fundamental mechanisms behind size-dependent magnetic phase transitions in FeRh nanostructures, which likely arise due to increased surface-to-volume ratios, altered atomic coordination, and oxidation-based effects.

A. Lengyel, et al. ,,Investigation of metamagnetic transition in nanosized FeRh structures'' Vacuum Vol. 240, Oct. 2025, 114533

10.1016/j.vacuum.2025.114533

A. Lengyel, et al. ,,Investigation of metamagnetic transition in nanosized FeRh structures'' Vacuum Vol. 240, Oct. 2025, 114533

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