Three-dimensional structure of a single colloidal crystal grain studied by coherent x-ray diffraction

Gulden, J.; Yefanov, Oleksandr; Mancuso, Adrian P.; Dronyak, R.; Singer, Andrej; Bernátová, V.; Burkhardt, Anja; Polozhentsev, O. E.; Soldatov, A. V.; Sprung, Michael; Vartanyants, Ivan A.

doi:10.1364/oe.20.004039

Cited by 25 publications

(22 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[47]. Because of experimental challenges, attempts to generalize this approach to three dimensions were not successful so far [48]. Here we present the first successful realization of a detailed reconstruction, visualizing 3D positions of individual particles in a single colloidal crystal grain.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Revealing Three-Dimensional Structure of an Individual Colloidal Crystal Grain by Coherent X-Ray Diffractive Imaging

et al. 2016

Self Cite

View full text Add to dashboard Cite

We present results of a coherent x-ray diffractive imaging experiment performed on a single colloidal crystal grain. The full three-dimensional (3D) reciprocal space map measured by an azimuthal rotational scan contained several orders of Bragg reflections together with the coherent interference signal between them. Applying the iterative phase retrieval approach, the 3D structure of the crystal grain was reconstructed and positions of individual colloidal particles were resolved. As a result, an exact stacking sequence of hexagonal close-packed layers including planar and linear defects were identified. DOI: 10.1103/PhysRevLett.117.138002 Colloidal crystals nowadays are actively exploited as an important model system to study nucleation phenomena in freezing, melting, and solid-solid phase transitions [1][2][3][4][5], jamming and glass formation [6,7]. In addition, colloidal crystals are attractive for multiple applications since they can be used as large-scale templates to fabricate novel materials with unique optical properties such as the full photonic band gap, "slow" photons and negative refraction, as well as materials for application in catalysis, biomaterials, and sensorics [8][9][10][11]. Colloidal crystals grown by self-organization provide a low cost large-scale alternative to lithographic techniques, which are very effective for producing high-quality materials with a desired structure, but are limited in building up a truly three-dimensional (3D) structure and bring high production costs [12]. Recently, significant progress has been achieved in engineering materials with tunable periodic structure on the mesoscale by functionalizing colloids with DNA [13], applying external fields [14,15] or varying the particle shape [16,17].Understanding the real structure of colloidal crystals and its disorder is an important aspect from both fundamental and practical points of view. Even at equilibrium, colloidal crystals can have a finite density of defects, which can be anomalously large for certain colloidal lattices [18]. The opposite can also happen as defects can play a decisive role in the choice of the crystal structure [19,20]. For applications such as photonic crystals most of growth-induced defects can deteriorate their optical properties. On the other hand, controlled incorporation of certain defects can be desirable to enhance the functionality such as creating wave guides [21,22], trapping photons [12,23], and developing optical chips [24]. In these studies, monitoring an internal 3D structure of colloidal crystals including defects in real time remains a challenge [25].Among widely used techniques of the colloidal crystal structure investigation are optical microscopy [26,27] and confocal laser scanning microscopy [28]. However, the range of applications of these methods is strongly reduced by the limited resolution (at best about 250 nm) and the need of a careful refractive index matching, which is not always possible. Furthermore, some of the materials are opaque for visible light which comp...

show abstract

mentioning

confidence: 99%

“…1(b)]. These streaks (Bragg rods) indicate the presence of plane defects in the crystalline lattice and the intensity modulations along them are directly related to the exact stacking sequence [48,51]. In the full 3D reciprocal space data set [see Fig.…”

mentioning

confidence: 99%

Revealing Three-Dimensional Structure of an Individual Colloidal Crystal Grain by Coherent X-Ray Diffractive Imaging

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…It consists of measuring the diffraction pattern of a finite-sized object that is illuminated with a coherent X-ray beam. CXDI has been applied to the imaging of different samples and (crystalline) materials [124,126] as well as colloidal crystals [127,128] . The use of a coherent X-ray beam results in the appearance of distinct features between the Bragg reflections that are not present in a typical SAXS pattern and are directly related the size and shape of the studied object.…”

Section: Coherent X-ray Diffraction Imagingmentioning

confidence: 99%

Colloidal Crystals of Spheres and Cubes in Real and Reciprocal Space

Meijer

2015

Springer Theses

View full text Add to dashboard Cite

show abstract

“…The method is extremely useful for the structural examination of non-crystalline specimens [1][2][3][4], and can be applied for the determination of the exact positions of individual scattering objects and the mapping of defects in periodically ordered structures [5,6]. One of the promising applications of coherent soft X-rays is the imaging of the local magnetization of magnetic specimens [7].…”

Section: Introductionmentioning

confidence: 99%

Coherent Resonant Soft X-ray Scattering Study of Magnetic Textures in FeGe

Ukleev

Yamasaki

Morikawa

et al. 2018

QuBS

View full text Add to dashboard Cite

Coherent resonant soft X-ray scattering was utilized to examine the magnetic textures in a thin plate of the cubic B20 compound FeGe. Small-angle scattering patterns were measured with controlled temperatures and magnetic fields exhibiting magnetic scattering from a helical texture and skyrmion lattice. By measuring the scattering pattern in a saturation magnetic field, magnetic and charge scattering were distinguished and an iterative phase retrieval algorithm was applied to reconstruct the magnetic texture in the real-space. Results of the real-space reconstruction of magnetic texture from two independently measured datasets were used to compare the reliability of the retrieval.

show abstract

Three-dimensional structure of a single colloidal crystal grain studied by coherent x-ray diffraction

Cited by 25 publications

References 33 publications

Revealing Three-Dimensional Structure of an Individual Colloidal Crystal Grain by Coherent X-Ray Diffractive Imaging

Revealing Three-Dimensional Structure of an Individual Colloidal Crystal Grain by Coherent X-Ray Diffractive Imaging

Colloidal Crystals of Spheres and Cubes in Real and Reciprocal Space

Coherent Resonant Soft X-ray Scattering Study of Magnetic Textures in FeGe

Contact Info

Product

Resources

About