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HORKÝ, M. ARREGI URIBEETXEBARRIA, J. PATEL, S. STAŇO, M. MEDAPALLI, R. CAHA, O. VOJÁČEK, L. HORÁK, M. UHLÍŘ, V. FULLERTON, E.
Originální název
Controlling the Metamagnetic Phase Transition in FeRh/MnRh Superlattices and Thin-Film Fe50-xMnxRh50 Alloys
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Equiatomic and chemically ordered FeRh and MnRh compounds feature a first-order metamagnetic phase transition between antiferromagnetic and ferromagnetic order in the vicinity of room temperature, exhibiting interconnected structural, magnetic, and electronic order parameters. We show that these two alloys can be combined to form hybrid metamagnets in the form of sputter-deposited superlattices and alloys on single-crystalline MgO substrates. Despite being structurally different, the magnetic behavior of the alloys with substantial Mn content resembles that of the FeRh/MnRh superlattices in the ultrathin individual layer limit. For FeRh/MnRh superlattices, dissimilar lattice distortions of the constituent FeRh and MnRh layers at the antiferromagnetic-ferromagnetic transition cause double-step transitions during cooling, while the magnetization during the heating branch shows a smooth, continuous trend. For Fe(50-x)Mn(x)Rh(50 )alloy films, the substitution of Mn at the Fe sites introduces an effective tensile in-plane strain and magnetic frustration in the highly ordered epitaxial films, largely influencing the phase transition temperature T-M (by more than 150 K). In addition, Mn acts as a surfactant, enabling the growth of continuous thin films at higher temperatures. Thus, the introduction of hybrid FeRh-MnRh systems with adjustable parameters provides a pathway for the realization of tunable spintronic devices based on magnetic phase transitions.
Klíčová slova
metamagnetism; magnetic alloys and superlattices; FeRh; MnRh; epitaxy; strain engineering
Autoři
HORKÝ, M.; ARREGI URIBEETXEBARRIA, J.; PATEL, S.; STAŇO, M.; MEDAPALLI, R.; CAHA, O.; VOJÁČEK, L.; HORÁK, M.; UHLÍŘ, V.; FULLERTON, E.
Vydáno
6. 2. 2022
Nakladatel
AMER CHEMICAL SOC
Místo
WASHINGTON
ISSN
1944-8252
Periodikum
ACS applied materials & interfaces
Ročník
14
Číslo
2
Stát
Spojené státy americké
Strany od
3568
Strany do
3579
Strany počet
12
URL
https://pubs.acs.org/doi/10.1021/acsami.1c22460
BibTex
@article{BUT176681, author="Michal {Horký} and Jon Ander {Arregi Uribeetxebarria} and Sheena K. K. {Patel} and Michal {Staňo} and Rajasekhar {Medapalli} and Ondřej {Caha} and Libor {Vojáček} and Michal {Horák} and Vojtěch {Uhlíř} and E.E. {Fullerton}", title="Controlling the Metamagnetic Phase Transition in FeRh/MnRh Superlattices and Thin-Film Fe50-xMnxRh50 Alloys", journal="ACS applied materials & interfaces", year="2022", volume="14", number="2", pages="3568--3579", doi="10.1021/acsami.1c22460", issn="1944-8252", url="https://pubs.acs.org/doi/10.1021/acsami.1c22460" }