Evolution of strain across the magnetostructural phase
transition in epitaxial FeRh films on different substrates

J 2020

Evolution of strain across the magnetostructural phase transition in epitaxial FeRh films on different substrates

ARREGI, Jon Ander; Ondřej CAHA a Vojtěch UHLÍŘ

Základní údaje

Originální název

Evolution of strain across the magnetostructural phase transition in epitaxial FeRh films on different substrates

Autoři

ARREGI, Jon Ander; Ondřej CAHA a Vojtěch UHLÍŘ

Vydání

Physical Review B, College PK (USA), American Physical Society, 2020, 2469-9950

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.036

Kód RIV

RIV/00216224:14310/20:00116839

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1103/PhysRevB.101.174413

UT WoS

000531182800003

EID Scopus

2-s2.0-85085511733

Klíčová slova anglicky

Antiferromagnetism; Epitaxial strain; Ferromagnetism; First order phase transitions; Magnetic phase transitions

Štítky

14312020, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 30. 4. 2021 18:33, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We present a detailed x-ray diffraction study of the structural evolution of epitaxial FeRh films across the temperature-driven phase transition between antiferromagnetic and ferromagnetic order. FeRh films grown onto MgO, W/MgO, and Al2O3 substrates show qualitatively different lattice distortions (tetragonal vs rhombohedral), while keeping a sharp transition above room temperature. Temperature-dependent x-ray reciprocal space mapping reveals the phase-specific crystal structure, giving access to both in-plane and out-of-plane lattice parameters and crystalline coherence lengths across different stages of the phase transition. Diffuse x-ray scattering from relaxed films is treated via a mosaic block model, which provides a robust data fitting scheme. It is found that the ferromagnetic phase fraction can stand a larger amount of strain before completely annihilating and transitioning to the antiferromagnetic phase upon cooling, as compared to heating. This is related to the distinct magnetic exchange correlations in the antiferromagnetic and ferromagnetic parent phases.

Návaznosti

90110, velká výzkumná infrastruktura

Název: CzechNanoLab

Citovat

ARREGI, Jon Ander; Ondřej CAHA a Vojtěch UHLÍŘ. Evolution of strain across the magnetostructural phase transition in epitaxial FeRh films on different substrates. Physical Review B. College PK (USA): American Physical Society, 2020, roč. 101, č. 17, s. 1-14. ISSN 2469-9950. Dostupné z: https://doi.org/10.1103/PhysRevB.101.174413.

@article{1689316,
   author = {Arregi, Jon Ander and Caha, Ondřej and Uhlíř, Vojtěch},
   article_location = {College PK (USA)},
   article_number = {17},
   doi = {https://doi.org/10.1103/PhysRevB.101.174413},
   keywords = {Antiferromagnetism; Epitaxial strain; Ferromagnetism; First order phase transitions; Magnetic phase transitions},
   language = {eng},
   issn = {2469-9950},
   journal = {Physical Review B},
   title = {Evolution of strain across the magnetostructural phase transition in epitaxial FeRh films on different substrates},
   url = {https://doi.org/10.1103/PhysRevB.101.174413},
   volume = {101},
   year = {2020}
}

TY  - JOUR
ID  - 1689316
AU  - Arregi, Jon Ander - Caha, Ondřej - Uhlíř, Vojtěch
PY  - 2020
TI  - Evolution of strain across the magnetostructural phase transition in epitaxial FeRh films on different substrates
JF  - Physical Review B
VL  - 101
IS  - 17
SP  - 1-14
EP  - 1-14
PB  - American Physical Society
SN  - 24699950
KW  - Antiferromagnetism
KW  - Epitaxial strain
KW  - Ferromagnetism
KW  - First order phase transitions
KW  - Magnetic phase transitions
UR  - https://doi.org/10.1103/PhysRevB.101.174413
L2  - https://doi.org/10.1103/PhysRevB.101.174413
N2  - We present a detailed x-ray diffraction study of the structural evolution of epitaxial FeRh films across the temperature-driven phase transition between antiferromagnetic and ferromagnetic order. FeRh films grown onto MgO, W/MgO, and Al2O3 substrates show qualitatively different lattice distortions (tetragonal vs rhombohedral), while keeping a sharp transition above room temperature. Temperature-dependent x-ray reciprocal space mapping reveals the phase-specific crystal structure, giving access to both in-plane and out-of-plane lattice parameters and crystalline coherence lengths across different stages of the phase transition. Diffuse x-ray scattering from relaxed films is treated via a mosaic block model, which provides a robust data fitting scheme. It is found that the ferromagnetic phase fraction can stand a larger amount of strain before completely annihilating and transitioning to the antiferromagnetic phase upon cooling, as compared to heating. This is related to the distinct magnetic exchange correlations in the antiferromagnetic and ferromagnetic parent phases.
ER  -

ARREGI, Jon Ander; Ondřej CAHA a Vojtěch UHLÍŘ. Evolution of strain across the magnetostructural phase transition in epitaxial FeRh films on different substrates. \textit{Physical Review B}. College PK (USA): American Physical Society, 2020, roč.~101, č.~17, s.~1-14. ISSN~2469-9950. Dostupné z: https://doi.org/10.1103/PhysRevB.101.174413.

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