Transition from Order to Configurational Disorder for Surface Reconstructions on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>SrTiO</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>(111)

Marks, Laurence D.; Chiaramonti, Ann N.; Rahman, Shams; Castell, Martin R.

doi:10.1103/physrevlett.114.226101

Cited by 36 publications

(53 citation statements)

References 49 publications

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“…One common feature that is consistent across both the images is the high signal at the origin. In contrast, other experimental data including STM and density functional theory based calculations [80] (see Figs. 3c and d) show the opposite.…”

Section: (3 â 3) Surface Reconstruction On Srtio 3 (111)mentioning

confidence: 43%

“…This gives rise to inconsistency in the results even for images acquired from the same sample but from different areas. For instance, different (n Â n) reconstructions have been found to coexist on the SrTiO 3 (111) surface along with other difficulties due to long range disorder in the sample and glass like behavior of some of the surfaces [80]. Similarly, issues with the signal to noise (S/N) ratio from the surface is critical.…”

Section: Discussionmentioning

confidence: 99%

“…In (c) STM image with the simulation overlaid and (d) the corresponding structure of the (3 Â 3) surface reconstruction on SrTiO 3 on (111) [Subfigures (c) and (d) adapted from Ref. [80].] (The (3 Â 3) unit cell is outlined in red.).…”

Section: (3 â 3) Surface Reconstruction On Srtio 3 (111)mentioning

confidence: 99%

“…This is particularly relevant for oxide materials which have an abundance of surface reconstructions; even the prototypical perovskite material SrTiO 3 has highly complex surface structures [1,2,4,6,9,[12][13][14]16,17,19,[21][22][23][24][25]27,29,[34][35][36][37]. The surfaces of these oxides are of prime importance as many phenomena occur at the surface.…”

Section: Introductionmentioning

confidence: 99%

“…Several techniques have been developed both from the theoretical and experimental fronts to address this issue. For conducting materials and simple unit cells, low-energy electron diffraction (LEED) is a very powerful approach [1][2][3][4][5][6], particularly when complemented by atomic resolution scanning probe methods [4,[7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Transmission electron diffraction (TED) [24,25] in unison with direct methods [26][27][28][29], X-ray scattering studies [29][30][31], reflection high energy electron diffraction (RHEED) [20,32,33] and recently high resolution secondary electron microscopy (HRSEM) [34] have also been effectively used to study surface structures.…”

Section: Introductionmentioning

confidence: 99%

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When does atomic resolution plan view imaging of surfaces work?

et al. 2016

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a b s t r a c tSurface structures that are different from the corresponding bulk, reconstructions, are exceedingly difficult to characterize with most experimental methods. Scanning tunneling microscopy, the workhorse for imaging complex surface structures of metals and semiconductors, is not as effective for oxides and other insulating materials. This paper details the use of transmission electron microscopy plan view imaging in conjunction with image processing for solving complex surface structures. We address the issue of extracting the surface structure from a weak signal with a large bulk contribution. This method requires the sample to be thin enough for kinematical assumptions to be valid. The analysis was performed on two sets of data, c(6 Â 2) on the (100) surface and (3 Â 3) on the (111) surface of SrTiO 3 , and was unsuccessful in the latter due to the thickness of the sample and a lack of inversion symmetry. The limits and the functionality of this method are discussed.

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Section: (3 â 3) Surface Reconstruction On Srtio 3 (111)mentioning

confidence: 43%

Section: Discussionmentioning

confidence: 99%

Section: (3 â 3) Surface Reconstruction On Srtio 3 (111)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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When does atomic resolution plan view imaging of surfaces work?

et al. 2016

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Controlled growth of complex polar oxide films with atomically precise molecular beam epitaxy

Liang

Liu

et al. 2018

Front. Phys.

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Atomically flat single terminated oxide substrate surfaces

Biswas

Yang

Ramesh

et al. 2017

Progress in Surface Science

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To achieve high quality epitaxial thin films and heterostructures of transition metal oxides with atomically controlled interfaces, one critical requirement is the use of atomically flat single terminated oxide substrates since the atomic arrangements and the reaction chemistry of the topmost surface layer of substrates determine the growth and consequent properties of the overlying films. Achieving the atomically flat and chemically single terminated surface state of commercially available substrates, however, requires judicious efforts because the surface of as-received substrates is of chemically mixed nature and also often polar. In this review, we summarize the surface treatment procedures to accomplish atomically flat surfaces with single terminating layer for various metal oxide substrates. We particularly focus on the substrates with lattice constant ranging from 4.00 to 3.70 angstrom, as the lattice constant of most perovskite materials falls into this range. For materials outside the range, one can utilize the substrates to induce compressive or tensile strain on the films and explore new states not available in bulk. The substrates covered in this review, which have been chosen with commercial availability and, most importantly, experimental practicality as a criterion, are KTaO3, REScO3 (RE = Rare-earth elements), SrTiO3, La0.18Sr0.82Al0.59Ta0.41O3 (LSAT), NdGaO3, LaAlO3, SrLaAlO4, and YAlO3. Analyzing all the established procedures, we conclude that atomically flat surfaces with selective A- or B-site single termination would be obtained for most commercially available oxide substrates. We further note that this topmost surface layer selectivity would provide an additional degree of freedom in searching for unforeseen emergent phenomena and functional applications in epitaxial oxide thin films and heterostructures with atomically controlled interfaces.Comment: A review articl

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Transition from Order to Configurational Disorder for Surface Reconstructions onSrTiO3(111)

Cited by 36 publications

References 49 publications

When does atomic resolution plan view imaging of surfaces work?

When does atomic resolution plan view imaging of surfaces work?

Controlled growth of complex polar oxide films with atomically precise molecular beam epitaxy

Atomically flat single terminated oxide substrate surfaces

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