Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Yoshiaki Uesu"'
Autor:
Zheyi An, Hiroko Yokota, Kyomaru Kurihara, Nozomu Hasegawa, Pavel Marton, Anthony Michael Glazer, Yoshiaki Uesu, Wei Ren, Zuo‐Guang Ye, Marek Paściak, Nan Zhang
Publikováno v:
Advanced materials (Deerfield Beach, Fla.).
Domain boundaries in ferroic materials are found to have various physical properties not presenting in the surrounding domains. Such differences can be enhanced and bring promising functionalities when centrosymmetric non-polar materials encounter po
Autor:
Nozomo Hasegawa, Charles R. S. Haines, Alexe Marin, Yooun Heo, Yoshiaki Uesu, Hiroko Yokota, Michael A. Carpenter, Suguru Matsumoto, Ekhard K. H. Salje
Publikováno v:
Physical Review B. 102
Ferroelastic $\mathrm{La}\mathrm{Al}{\mathrm{O}}_{3}$ (space group $R\overline{3}c$) exists with two different microstructures: twins and tweed. Both microstructures contain electrical dipole moments. Polarity inside ferroelastic twin walls has been
Publikováno v:
Physical Review B. 100
Domain boundaries in lead phosphate, $\mathrm{P}{\mathrm{b}}_{3}{(\mathrm{P}{\mathrm{O}}_{4})}_{2}$, are investigated by using second harmonic generation (SHG) microscopy. It is revealed that they are polar while the bulk is a purely ferroelastic, ce
Autor:
Yoshiaki Uesu, Hiroko Yokota
Publikováno v:
Journal of Applied Physics. 129:014101
Domain walls (DWs) of four typical ferroelastics, CaTiO3 (CTO), LaAlO3 (LAO), Pb3(PO4)2 (PPO), and BiVO4 (BVO), were observed by the second harmonic generation (SHG) microscopy, and the results were compared. The DWs of the examined ferroelastics are
Publikováno v:
Applied Physics Letters. 116:232901
Ferroelastic domain boundaries in semiconductor bismuth vanadate, BiVO4, are examined using second harmonic generation microscopy. Although the bulk is centrosymmetric, domain boundaries produce homogeneous second harmonic (SH) signals. The polarizat
Publikováno v:
Journal of Physics: Condensed Matter. 32:345401
The effect of doping metal ions in ferroelastic Pb3(PO4)2 (PPO) on the polar nature of domain boundaries (DBs) was investigated using a second harmonic generation (SHG) microscope. It has been already reported that (DBs) of non-doped PPO is SH active
Publikováno v:
Physical Review B. 98
The domain boundaries of ferroelastic $\mathrm{LaAl}{\mathrm{O}}_{3}$ (LAO) are examined using a nonlinear optical second harmonic generation (SHG) microscope. Although bulk crystalline LAO possesses centro-symmetry and is inherently non-SH active, o
Publikováno v:
Science and Technology of Advanced Materials, Vol 5, Iss 4, p 417 (2004)
The oxygen isotope exchange of 16O by 18O in SrTiO3 causes a drastic change from paraelectric to ferroelectric, due to the suppression of quantum fluctuation. The phase transition and origin of the huge domain wall response were evaluated by dielectr
Externí odkaz:
https://doaj.org/article/424b2fa7c56840e29d74529de8e364c9
Publikováno v:
AIP Advances
AIP Advances, American Institute of Physics-AIP Publishing LLC, 2017, 7 (8), ⟨10.1063/1.4990608⟩
AIP Advances, Vol 7, Iss 8, Pp 085315-085315-7 (2017)
AIP Advances, American Institute of Physics-AIP Publishing LLC, 2017, 7 (8), ⟨10.1063/1.4990608⟩
AIP Advances, Vol 7, Iss 8, Pp 085315-085315-7 (2017)
International audience; A compressive uniaxial mechanical stress is applied on ferroelastic CaTiO3 (CTO), and a change in the domain structure is observed under a polarization microscope and a second harmonic generation (SHG) microscope. New twin wal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bee027c2ac50a063669d5fb9263e9613
https://hal.archives-ouvertes.fr/hal-01781595
https://hal.archives-ouvertes.fr/hal-01781595
Publikováno v:
Physics Research International. 2012:1-12
The second harmonic generation microscope (SHGM) constructs images of intensity distributions of SH waves produced by the interaction of fundamental waves with a polar material. We have developed this nonlinear optical microscope in order to make pos