High-Temperature Magnetic Insulating Phase in Ultrathin<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>La</mml:mi><mml:mn>0.67</mml:mn></mml:msub><mml:msub><mml:mi>Sr</mml:mi><mml:mn>0.33</mml:mn></mml:msub><mml:msub><mml:mi>MnO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>Films

Boschker, Hans; Kautz, Jaap; Houwman, Evert Pieter; Siemons, Wolter; Blank, David H.A.; Huijben, Mark; Koster, Gertjan; Vailionis, Artūras; Rijnders, Guus

doi:10.1103/physrevlett.109.157207

Cited by 110 publications

(91 citation statements)

References 32 publications

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“…Here, the distortions of the B O 6 octahedra at the BMO/ BFO interfaces may be not suitable for optimum magnetic coupling. [25][26][27][28] Similar effects of strongly sensitive magnetic properties to structural distortion have been observed previously in superlattices of [ 25 (SL-LSMO/BTO). Strong enhancements of T C were found in these strained superlattices, 1000 K for SL-LCMO/BTO, and 650 K for SL-LSMO/ BTO, whereas in relaxed bulk and plain thin fi lms of LCMO and LSMO lower T C s of only 250 and 370 K, respectively, were achieved.…”

Section: Doi: 101002/admi201500597supporting

confidence: 60%

“…But this could be due to a difference in B O 6 octahedral rotations which has been shown to affect the T C of LSMO significantly. [ 26 ] In addition, this double exchange FM coupling of Mn 2+ -O-Mn 3+ should result in metallic behavior below T C2 caused by electron hopping, just as for La 1− x Ce x MnO 3 with x = 0.3. [ 51,52 ] However, independent of m , all our superlattices are highly resistive, which indicates that the Mn 2+ -O-Mn 3+ is not the dominant interaction.…”

Section: Doi: 101002/admi201500597mentioning

confidence: 99%

“…Moreover, the lattice strain from the substrate as well as the superlattice interfaces can affect the magnetic behavior as a result of changes in orbital ordering or bonding distortion of the B O 6 octahedra. [25][26][27][28][29] Here, in SL-BFO m /BMO m ( m = 1, 2, 4, and 8 unit cells (u.c. )), tuning Fe-Mn magnetic interactions through interfacial strain and charge engineering is demonstrated.…”

Section: Doi: 101002/admi201500597mentioning

confidence: 99%

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Interface‐Coupled BiFeO₃/BiMnO₃ Superlattices with Magnetic Transition Temperature up to 410 K

Choi

Kleibeuker

Fix

et al. 2016

Adv Materials Inter

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polarization is very small (0.1 µ C cm −2 at ≈90 K) or it is even paraelectric. [ 4 ] In BFO, strong FE behavior (Ferroelectric transition temperature, T C,FE ≈ 1103 K) coexists together with antiferromagnetism (AFM). BFO has an incommensurate cycloidally modulated G-type AFM structure with a large period of 62 nm (Néel temperature, T N ≈ 650 K). [ 5,6 ] Despite having ferroelectric and magnetic ordering at high temperatures, BFO has drawbacks for practical applications. Most notably the weak FM-like magnetic behavior results from destruction of its incommensurate magnetic structure leading to AFM. [ 6 ] With strong ferromagnetic behavior in BMO and strong ferroelectric behavior in BFO, various studies have suggested combining BMO and BFO in order to achieve room-temperature (RT) multiferroicity. [7][8][9][10] One approach is to modify the local spin confi guration of Fe by chemical doping at the B -site. [ 8,9 ] By 50% doping, this simple concept could result in ordered double perovskite ferrites of Bi 3+ 2 Fe6 (TM = transition metal: Cr, Mn, Co, Ni, and Cu) giving antiferromagnetically coupled high spin state of the TM and Fe. However, this concept has not been widely realized due to the lack of cation ordering as a result of negligible differences in ionic valences and ionic radii. [11][12][13][14][15] On the other hand, disordered double perovskites (notably BiFe 0.5 Mn 0.5 O 3 (BFMO) and Bi 2 CoMnO 6 (BCMO)) show a strongly enhanced T C albeit with lower magnetic moment than expected for the ordered structure. [ 16,17 ] Pálová et al. extended the idea of ordered double perovskites by theoretically studying BFMO with an ordered nanoscale checkerboard structure (NCB-BFO/BMO, see Figure 1 a), i.e., columnar B -site ordering. [ 10 ] Their calculations predict that an ordered NCB-BFO/BMO would be ferroelectric and ferrimagnetic (FiM) with M S of 3.8 µ B /Fe-Mn pair and T C of 406 K, as a result of magnetic ordering arising from the superexchange coupling between the neighboring AFM-Fe and FM-Mn. [ 10 ] Unfortunately, spontaneous columnar B -site ordering is not expected and high quality growth of artifi cial 1:1 BFO/BMO superlattices along the 〈110〉 direction is very hard.

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Section: Doi: 101002/admi201500597supporting

confidence: 60%

Section: Doi: 101002/admi201500597mentioning

confidence: 99%

Section: Doi: 101002/admi201500597mentioning

confidence: 99%

See 1 more Smart Citation

Interface‐Coupled BiFeO₃/BiMnO₃ Superlattices with Magnetic Transition Temperature up to 410 K

Choi

Kleibeuker

Fix

et al. 2016

Adv Materials Inter

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“…Finally, inspired by the rather typical (001) perovskite orientation, orientations other than (001) are being investigated, leading to surprising results. 55 In addition, crystal structures other than perovskites (e.g., spinels), 48 TM other than 3 d -4 d ones (e.g., 5 d , Iridates), 6 , 56 interfaces for redox resistive switching (typically not all-perovskite), 57 and MgO-based magnetic tunnel junction interfaces (non-perovskites, metal electrodes) are all being investigated. 58 It is our strong conviction that both in the short term as well as the long term, oxides and their interfaces will play a prominent role in many applications.…”

Section: Outlook: Recent and Future Trendsmentioning

confidence: 99%

Functional oxide interfaces

2013

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Functional perovskite oxides are recognized for their stunningly rich physics and for their potential as next-generation electronic materials. Their properties include high T c superconductivity, colossal magnetoresistance, record-high dielectric/ferroelectric/piezoelectric performances, multiferroic behavior, resistive switching behavior, giant thermoelectric and magnetocaloric effects, giant ionic conduction, and catalytic behavior. Due to their intrinsic chemical and crystal similarities, functional oxides can be stacked in multilayer heterostructures exhibiting an astonishing degree of epitaxial perfection. Such artifi cial systems not only allow one to combine in a single device the functionalities of their individual layers, but often reveal an even wider range of emergent novel properties that can be surprisingly different from those of the single building blocks. The goal of this issue of MRS Bulletin is to present the state of the art of oxide interfaces in inscience and technology. Here we provide an introduction to their properties, serving as a base for the following topical articles.

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“…This once again 378 confirms the strong interplay between the orbital and spin 379 degrees of freedom in this transition-metal oxide, and how the 380 strain crucially affects the competition between FM and AFM 381 orderings. XMCD cannot provide the experimental evidence of 382 the existence of an AFM ordering; however, orbital anisotropy 383 was already demonstrated for LSMO epitaxial film grown on 384 substrates with a lower mismatch [39,45,46], so it is expected in 385 this case too, also taking into account the insulating behavior 386 observed from transport measurements in the R phase (see 387 Fig. 4).…”

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Strain-induced magnetization control in an oxide multiferroic heterostructure

et al. 2018

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Controlling magnetism by using electric fields is a goal of research towards novel spintronic devices and future nano-electronics. For this reason, multiferroic heterostructures attract much interest. Here we provide experimental evidence, and supporting DFT analysis, of a transition in La0.65Sr0.35MnO3 (LSMO) thin film to a stable ferromagnetic phase, that is induced by the structural and strain 2 properties of the ferroelectric BaTiO3 (BTO) substrate, which can be modified by applying external electric fields. X-ray Magnetic Circular Dichroism (XMCD) measurements on Mn L edges with a synchrotron radiation show, in fact two magnetic transitions as a function of temperature that correspond to structural changes of the BTO substrate. We also show that ferromagnetism, absent in the pristine condition at room temperature, can be established by electrically switching the BTO ferroelectric domains in the out-of-plane direction. The present results confirm that electrically induced strain can be exploited to control magnetism in multiferroic oxide heterostructures.

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High-Temperature Magnetic Insulating Phase in UltrathinLa0.67Sr0.33MnO3Films

Cited by 110 publications

References 32 publications

Interface‐Coupled BiFeO₃/BiMnO₃ Superlattices with Magnetic Transition Temperature up to 410 K

Interface‐Coupled BiFeO₃/BiMnO₃ Superlattices with Magnetic Transition Temperature up to 410 K

Functional oxide interfaces

Strain-induced magnetization control in an oxide multiferroic heterostructure

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High-Temperature Magnetic Insulating Phase in UltrathinLa0.67Sr0.33MnO3Films

Cited by 110 publications

References 32 publications

Interface‐Coupled BiFeO3/BiMnO3 Superlattices with Magnetic Transition Temperature up to 410 K

Interface‐Coupled BiFeO3/BiMnO3 Superlattices with Magnetic Transition Temperature up to 410 K

Functional oxide interfaces

Strain-induced magnetization control in an oxide multiferroic heterostructure

Contact Info

Product

Resources

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Interface‐Coupled BiFeO₃/BiMnO₃ Superlattices with Magnetic Transition Temperature up to 410 K

Interface‐Coupled BiFeO₃/BiMnO₃ Superlattices with Magnetic Transition Temperature up to 410 K