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We present an ab initio study of the (001) interfaces between two insulating perovskites, the polar LaAlO3 and the nonpolar SrTiO3. We observe an insulating-to-metallic transition above a critical LaAlO3 thickness. We explain that the high…

Materials Science · Physics 2009-11-13 Hanghui Chen , Alexie M. Kolpak , Sohrab Ismail-Beigi

A key element to tailor the properties of magnetic multilayers is the coupling between the individual magnetic layers. In case of skyrmion hosting multilayers, coupling of skyrmions across the magnetic layers is highly desirable. Here the…

Recently, perovskite related BaPbO$_3$ has attracted attention due to its hidden topological properties and, moreover, has been used as a thin layer in heterostructures to induce two-dimensional superconductivity. Here we investigate the…

Mesoscale and Nanoscale Physics · Physics 2019-10-09 Patrick Seiler , Robert Bartel , Thilo Kopp , German Hammerl

La$_{1-x}$Sr$_{x}$CoO3-$\delta$ is a promising off-stoichiometric metal oxide that undergoes a topotactic perovskite ($\delta$ = 0) to brownmillerite ($\delta$ = 0.5) transition under electrochemical and thermochemical stimuli, with…

Materials Science · Physics 2026-02-06 Armand J. Lannerd , Nathan J. Szymanski , Christopher J. Bartel

We have deployed density functional theory, Wannier function analysis and mean-field calculations to investigate the double-double perovskite compound CaMnCrSbO_{6}. The crystallographically non-equivalent Mn atoms in the unit cell have…

Materials Science · Physics 2022-06-14 Rakshanda Dhawan , Padmanabhan Balasubramanian , Tashi Nautiyal

RuO$_{2}$ has been proposed as the prototypical altermagnetic material. However, several reports have recently questioned its intrinsic magnetic ordering, leading to conflicting findings, especially in thin film heterostructures pointing to…

Considerable evidence for proximity-induced triplet superconductivity on the ferromagnetic side of a superconductor-ferromagnet (S-F) interface now exists; however, the corresponding effect on the superconductor side has hardly been…

Superconductivity · Physics 2015-09-02 Yoav Kalcheim , Oded Millo , Angelo Di Bernardo , Avardeep Pal , Jason W. A. Robinson

Materials with strongly correlated electrons exhibit physical properties that are often difficult to predict as they result from the interactions of large numbers of electrons combined with several quantum degrees of freedom. The layered…

Cross-sectional scanning tunnelling microscopy and spectroscopy (XSTM/S) were used to map out the band alignment across the complex oxide interface of La$_{2/3}$Ca$_{1/3}$MnO$_{3}$/Nb-doped SrTiO$_{3}$. By a controlled cross-sectional…

Mesoscale and Nanoscale Physics · Physics 2010-07-06 TeYu Chien , Jian Liu , Jacques Chakhalian , Nathan P. Guisinger , John W. Freeland

We report local probe investigations of the magnetic interaction between BiFeO3 films and a ferromagnetic Co0.9Fe0.1 layer. Within the constraints of intralayer exchange coupling in the Co0.9Fe0.1, the multiferroic imprint in the…

Materials Science · Physics 2013-05-01 M. Trassin , J. D. Clarkson , S. R. Bowden , Jian Liu , J. T. Heron , R. J. Paull , E. Arenholz , D. T. Pierce , J. Unguris

Electric-field control of magnetism provides a promising route towards ultralow power information storage and sensor technologies. The effects of magneto-ionic motion have so far been prominently featured in the direct modification of…

Mesoscale and Nanoscale Physics · Physics 2016-09-19 Dustin A. Gilbert , Alexander J. Grutter , Elke Arenholz , Kai Liu , B. J. Kirby , Julie A. Borchers , Brian B. Maranville

The exchange bias (EB) effect, pivotal in magnetic data storage and sensing devices, has been observed not only in interfacial regions but also in intrinsic ferromagnetic materials. Here, we've uncovered a robust and stable exchange bias…

Materials Science · Physics 2023-12-29 Xi Zhang , Xiuquan Xia , Qiye Liu , Yonggang He , Le Wang , Junhao Lin , Jia-Wei Mei , Yingchun Cheng , Jun-Feng Dai

Ferromagnetic SrRuO3 thin films are deposited on the ab-surface of single crystals of the spin-triplet superconductor Sr2RuO4 as substrates using pulsed laser deposition. The films are under a severe in-plane compressive strain.…

We perform first-principles density functional calculations to elucidate structural, electronic and magnetic properties at the interface of \ce{(0001)Cr2O3-(111)Pt} bilayers. This investigation is motivated by the fact that, despite the…

Materials Science · Physics 2024-05-09 Marlies Reher , Nicola A. Spaldin , Sophie F. Weber

Exchange bias is one of the most extensively studied phenomena in magnetism, since it exerts a unidirectional anisotropy to a ferromagnet (FM) when coupled to an antiferromagnet (AFM) and the control of the exchange bias is therefore very…

Materials Science · Physics 2016-07-12 Wei Yuan , Tang Su , Qi Song , Wenyu Xing , Yangyang Chen , Tianyu Wang , Zhangyuan Zhang , Xiumei Ma , Peng Gao , Jing Shi , Wei Han

Magnetization reversal of soft ferromagnetic Fe layer, coupled to [Co/Pt]ML multilayer [ML] with perpendicular magnetic anisotropy (PMA), has been studied in-situ with an aim to understand the origin of exchange bias (EB) in orthogonal…

The complex investigation of dc transport and magnetic properties of the epitaxial manganite/iridate heterostructure was carried out by mean of X-ray (XRD), dc resistance measurements, ferromagnetic resonance (FMR) and polarized neutron…

Mesoscale and Nanoscale Physics · Physics 2020-10-07 G. A. Ovsyannikov , T. A Shaikhulov , V. V. Demidov , K. L. Stankevich , Yu. Khaydukov , N. V. Andreev

Exchange bias properties are observed in a double perovskite compound, Sr2LuRuO6. The observed exchange bias properties have been analyzed on the basis of some of the available theoretical models. Detailed magnetization measurements show…

Strongly Correlated Electrons · Physics 2010-09-17 Ravi. P. Singh , C. V. Tomy

The advent of magnetic two-dimensional electron gases (2DEGs) at oxide interfaces has provided new opportunities in the field of spintronics. The enhancement of magnetism in 2DEGs at oxide interfaces continues to be a significant challenge,…

The exchange bias (EB) phenomenon has been found in Nd2/3Ca1/3MnO3 perovskite. The phenomenon manifests itself as a negative horizontal shift of magnetization hysteresis loops. The EB phenomenon is evident of an interface exchange coupling…

Materials Science · Physics 2015-06-17 Elena Fertman , Sergiy Dolya , Vladimir Desnenko , Marcela Kajnakova , Alexander Feher