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Negligible Substrate‐Induced Strain Effects on Magnetic Properties of SrRuO 3 Thin Films
Author(s) -
Lee Seung Ran,
Anwar Muhammad Shahbaz,
Shin Yeong Jae,
Lee Min-Cheol,
Sugimoto Yusuke,
Kunieda Masanao,
Yonezawa Shingo,
Maeno Yoshiteru,
Noh Tae Won
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.202000047
Subject(s) - condensed matter physics , materials science , magnetocrystalline anisotropy , magnetization , lattice constant , thin film , strain engineering , magnetic anisotropy , nanotechnology , diffraction , magnetic field , optics , physics , quantum mechanics , phase transition
SrRuO 3 is known to exhibit strong magnetocrystalline effect, which enables us to control its magnetic properties using lattice engineering. The magnetocrystalline effect of SrRuO 3 is systematically investigated under both compressive and tensile strain by depositing SrRuO 3 thin films on various oxide substrates with different in‐plane lattice mismatch. All SrRuO 3 films have high crystallinity with flat interface and surface. It is found that out‐of‐plane lattice constant is decreased with increasing strain. Moreover, unit cell volume decreases with strain due to structural distortion attributable to RuO 6 octahedral distortion as theoretically expected. However, magnetization does not match to any of the theoretical models only considering structural changes; at current stage, internal interactions rather than structural changes seem critical in determining the magnetization of the SrRuO 3 films. This study can play a crucial role in understanding internal correlations of magnetic properties in ruthenate films and can trigger research on magnetic functionality.