Interfacial Ferromagnetism in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>LaNiO</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:mo>/</mml:mo><mml:msub><mml:mi>CaMnO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>Superlattices

Grutter, Alexander J.; Yang, Hao; Kirby, Brian J.; Fitzsimmons, M. R.; Aguiar, J. Albino; Browning, Nigel D.; Jenkins, Catherine; Arenholz, Elke; Mehta, Virat; Alaan, Urusa S.; Suzuki, Yuri

doi:10.1103/physrevlett.111.087202

Cited by 84 publications

(75 citation statements)

References 23 publications

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“…Ferromagnetism that is present only at the interface between LaNiO 3 and CaMnO 3 has been observed by x-ray magnetic circular dichroism combined with polarized neutron reflectometry [16]. Exchange bias has been observed in bilayers of La 0.75 Sr 0.25 MnO 3 and LaNiO 3 [18] (LSMO/LNO) grown along (001) direction.…”

Section: Introductionmentioning

confidence: 98%

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Interfacial properties ofLaMnO3/LaNiO3superlattices grown along (001) and (111) orientations

et al. 2015

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We have employed x-ray absorption spectroscopy and x-ray magnetic circular dichroism (XMCD) at the Ni and Mn L 3,2 edges in LaMnO 3 /LaNiO 3 superlattices grown along (001) and (111) orientations. Our results show a significant XMCD signal and thus the presence of magnetic moments localized on both Ni and Mn, which are ferromagnetically coupled to each other. X-ray absorption experiments reveal a charge transfer between Ni and Mn which is larger for (111) than for (001) superlattices. These results are compared to theoretical predictions for such superlattices.

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Section: Introductionmentioning

confidence: 98%

“…A few experimental investigations have explored heterostructures combining manganites and nickelates [5,[15][16][17][18][19][20][21]. Ferromagnetism that is present only at the interface between LaNiO 3 and CaMnO 3 has been observed by x-ray magnetic circular dichroism combined with polarized neutron reflectometry [16].…”

Section: Introductionmentioning

confidence: 99%

Interfacial properties ofLaMnO3/LaNiO3superlattices grown along (001) and (111) orientations

et al. 2015

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“…[ 18,19 ] Moreover, interfacial FM has been observed at 95 and 75 K in (001)-oriented CaMnO 3 /CaRuO 3 and LaNiO 3 /CaMnO 3 superlattices, respectively even though CaMnO 3 is AFM and both CaRuO 3 and LaNiO 3 are paramagnetic. [20][21][22] Additional changes in the B -B′ magnetic interactions may result from internal charge transfer from B to B′. [20][21][22][23][24] Internal charge transfer has been observed in, e.g., (001)-oriented LaNiO 3 /LaMnO 3 superlattices from Mn 3+ to Ni 3+ , similar to rock salt ordered La 2 NiMnO 6 .…”

Section: Doi: 101002/admi201500597mentioning

confidence: 99%

“…[20][21][22] Additional changes in the B -B′ magnetic interactions may result from internal charge transfer from B to B′. [20][21][22][23][24] Internal charge transfer has been observed in, e.g., (001)-oriented LaNiO 3 /LaMnO 3 superlattices from Mn 3+ to Ni 3+ , similar to rock salt ordered La 2 NiMnO 6 . [ 23,24 ] As a result, interface-induced ferromagnetism was found in the paramagnetic LaNiO 3 layer.…”

Section: Doi: 101002/admi201500597mentioning

confidence: 99%

“…Such leakage is predicted to be on the order of 0.07 e − /Mn in order to stabilize interfacial FM in CaMnO 3 /CaRuO 3 , and is suggested to occur experimentally in SL of CaRuO 3 /CaMnO 3 and LaNiO 3 /CaMnO 3 . [20][21][22] Note that such a leakage has only been observed when CaRuO 3 and LaNiO 3 are metallic. BFO is an insulator, but BFO fi lms are often not highly resistive owing to the presence of defects in the structure, allowing small charge leakage.…”

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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Atomic‐Scale Control of Electronic Structure and Ferromagnetic Insulating State in Perovskite Oxide Superlattices by Long‐Range Tuning of BO₆ Octahedra

Zhu

et al. 2020

Adv Funct Materials

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Control of BO 6 octahedral rotations at the heterointerfaces of dissimilar ABO 3 perovskites has emerged as a powerful route for engineering novel physical properties. However, its impact length scale is constrained at 2-6 unit cells close to the interface and the octahedral rotations relax quickly into bulk tilt angles away from interface. Here, a long-range (up to 12 unit cells) suppression of MnO 6 octahedral rotations in La 0.9 Ba 0.1 MnO 3 through the formation of superlattices with SrTiO 3 can be achieved. The suppressed MnO 6 octahedral rotations strongly modify the magnetic and electronic properties of La 0.9 Ba 0.1 MnO 3 and hence create a new ferromagnetic insulating state with enhanced Curie temperature of 235 K. The emergent properties in La 0.9 Ba 0.1 MnO 3 arise from a preferential occupation of the out-of-plane Mn d 3z 2 −r 2 orbital and a reduced Mn e g bandwidth, induced by the suppressed octahedral rotations. The realization of long-range tuning of BO 6 octahedra via superlattices can be applicable to other strongly correlated perovskites for exploring new emergent quantum phenomena.

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Interfacial Ferromagnetism inLaNiO3/CaMnO3Superlattices

Cited by 84 publications

References 23 publications

Interfacial properties ofLaMnO3/LaNiO3superlattices grown along (001) and (111) orientations

Interfacial properties ofLaMnO3/LaNiO3superlattices grown along (001) and (111) orientations

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

Atomic‐Scale Control of Electronic Structure and Ferromagnetic Insulating State in Perovskite Oxide Superlattices by Long‐Range Tuning of BO₆ Octahedra

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Interfacial Ferromagnetism inLaNiO3/CaMnO3Superlattices

Cited by 84 publications

References 23 publications

Interfacial properties ofLaMnO3/LaNiO3superlattices grown along (001) and (111) orientations

Interfacial properties ofLaMnO3/LaNiO3superlattices grown along (001) and (111) orientations

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

Atomic‐Scale Control of Electronic Structure and Ferromagnetic Insulating State in Perovskite Oxide Superlattices by Long‐Range Tuning of BO6 Octahedra

Contact Info

Product

Resources

About

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

Atomic‐Scale Control of Electronic Structure and Ferromagnetic Insulating State in Perovskite Oxide Superlattices by Long‐Range Tuning of BO₆ Octahedra