Local probing of the polarization state in thin Pb(ZrTi)O3 films during polarization reversal

Мишина, Е. Д.; Sherstyuk, N. É.; Pevtsov, E Ph; Воротилов, К. А.; Сигов, А. С.; Moret, Mona P.; Rössinger, S. A.; Larsen, P.K.; Rasing, T.H.M.

doi:10.1063/1.1329332

Cited by 21 publications

(10 citation statements)

References 10 publications

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“…It is interesting as well as challenging to employ the nonlinear optical effects in the imaging technique. Due to the high sensitivity to the symmetry and order, it has been used to image the ferroelectric domains and domain walls [42][43][44], molecular surface ordering [45,46], metal [47] and semiconductor [48] surface structures. In addition, due to its high contrast, SHG microscopy could be combined with the optical near-field imaging [49][50][51] thus expanding the resolution possibilities.…”

Section: Mshg Microscopymentioning

confidence: 99%

Nonlinear optics in application to magnetic surfaces and thin films

Kirilyuk

2002

J. Phys. D: Appl. Phys.

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Magnetization sensitive second harmonic generation (MSHG) is a nonlinear optical technique that, due to the dipole selection rules, is specifically sensitive to surfaces and interfaces of centrosymmetric media. This surface/interface sensitivity of MSHG in combination with very large magneto-optical effects lead to a fast development of this technique over the past decade. The main attention of the present review is on the application of the MSHG technique to magnetic thin films and surfaces, with a focus on the achieved progress in understanding, with the help of MSHG, of the magnetic surface and interface phenomena. On the one hand, an extreme sensitivity of MSHG to the electronic and magnetic structure of clean surfaces has been successfully demonstrated. On the other hand, the penetration depth of light allowed one to use this sensitivity to study buried interfaces in multilayer systems. Various phenomena, such as surface states on magnetic metals, enhanced magnetic moments of low-coordinated atoms, and quantum well states, have been studied. Further experimental developments of the MSHG technique, like space- and time resolution as well as magnetization sensitive sum frequency generation, appear to be promising as well.

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Section: Mshg Microscopymentioning

confidence: 99%

Nonlinear optics in application to magnetic surfaces and thin films

Kirilyuk

2002

J. Phys. D: Appl. Phys.

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“…17,18 Analogous expressions can be obtained for non-normal incidence. In those equations Z-oriented domains are represented by ⌬F Z ͑for coherent radiation͒ and F Z ͑for incoherent radiation͒.…”

Section: Theoretical Considerationmentioning

confidence: 99%

Domain orientation in ultrathin (Ba,Sr)TiO3 films measured by optical second harmonic generation

Мишина

Sherstyuk

Barskiy

et al. 2003

Journal of Applied Physics

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The analysis of polarization diagrams for specular and scattered second harmonic generation ͑SHG͒ was used for the structural characterization of submicron domain structures of thin (Ba,Sr͒TiO 3 ͑BST͒ films. It is shown that the lack of separation of these two contributions may lead to completely wrong conclusions about the domain orientation in these films. SHG studies of the thickness dependence of domain fractions ͑including 180°domains͒ reveal the presence of ferroelectric domains in ultrathin BST films ͑6 nm͒, although no domain structure was observed by atomic force microscopy. Thus the presence of ferroelectric ordering was demonstrated in perovskite films with a thickness down to 6 nm.

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“…͑iv͒ At room temperature, BBiT is in the ferroelectric phase, and this means that the present remnant polarization may in principle create additional, field-induced tensor elements in the optical nonlinearity. It was shown very recently for Pb͑ZrTi͒O 3 films that these elements can be used to detect ferroelectric polarization by SHG experiments; 31 however, since the electric field-induced terms are usually much smaller than crystallographic ones, 31 this is not expected to be important for interpretation of the data presented. It will, however, be an interesting aspect of future experiments where one may attempt to also investigate the ferroelectric characteristics of these BBiT films and of other Aurivillius phases with the help of SHG.…”

Section: Resultsmentioning

confidence: 99%

Nonlinear optical probing of nanocrystalline orientation in epitaxial ferroelectric thin films

Woltersdorf

Seifert

Graener

et al. 2002

Journal of Applied Physics

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Epitaxially grown ferroelectric BaBi 4 Ti 4 O 15 thin films were studied by optical second-harmonic ͑SH͒ generation using a femtosecond titanium:sapphire laser at 800 nm wavelength. By varying both the incidence and the azimuthal angle and registering the second-harmonic intensity, a significant correlation was found between the azimuthal dependence of the measured SH signal and the nanoscopic texture of the samples, which was determined by electron microscopy and x-ray diffraction. In particular, two different types of grains with different crystallographic orientations generate different SH intensity maxima with fourfold azimuthal symmetry, distinguishable from an isotropic background due to a c-axis oriented main layer. This correlation suggests the use of the SH technique for a purely optical characterization of the film orientation and thickness.

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Local probing of the polarization state in thin Pb(ZrTi)O3 films during polarization reversal

Cited by 21 publications

References 10 publications

Nonlinear optics in application to magnetic surfaces and thin films

Nonlinear optics in application to magnetic surfaces and thin films

Domain orientation in ultrathin (Ba,Sr)TiO3 films measured by optical second harmonic generation

Nonlinear optical probing of nanocrystalline orientation in epitaxial ferroelectric thin films

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