Sign inversion phenomenon of voltage-induced tunnel magnetocapacitance

Takeru Nakagawa; Kentaro Ogata; Yusuke Nakayama; Gang Xiao; Hideo Kaiju

doi:10.1063/5.0050304

Studies on the Inversion Phenomenon of Physical Properties Observed in the Huagang Formation Reservoir in the Xihu Sag Based on the Water-Rock Reaction Experiments

Journal of Ocean University of China ◽

10.1007/s11802-021-4565-y ◽

2021 ◽

Vol 20 (4) ◽

pp. 755-764

Author(s):

Siqin Huang ◽

Fanghao Xu ◽

Guosheng Xu ◽

Hengyuan Cui ◽

Wu Zhang

Keyword(s):

Physical Properties ◽

Inversion Phenomenon

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Photoinduced sign inversion of the anomalous Hall effect in EuO thin films

Physical Review B ◽

10.1103/physrevb.89.121114 ◽

2014 ◽

Vol 89 (12) ◽

Cited By ~ 7

Author(s):

Y. Ohuchi ◽

Y. Kozuka ◽

N. Rezaei ◽

M. S. Bahramy ◽

R. Arita ◽

...

Keyword(s):

Thin Films ◽

Hall Effect ◽

Anomalous Hall Effect ◽

Sign Inversion

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On the inversion phenomenon in radio star scintillation

Journal of Atmospheric and Terrestrial Physics ◽

10.1016/0021-9169(68)90102-5 ◽

1968 ◽

Vol 30 (10) ◽

pp. 1823-1826 ◽

Cited By ~ 1

Author(s):

Andrew Hooper

Keyword(s):

Inversion Phenomenon

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Deepening of domains at e-beam writing on the -Z surface of lithium niobate

Journal of Physics D Applied Physics ◽

10.1088/1361-6463/ac44c1 ◽

2021 ◽

Author(s):

Lyudmila Kokhanchik ◽

Evgenii Emelin ◽

Vadim Vladimirovch Sirotkin ◽

Alexander Svintsov

Keyword(s):

Surface Layer ◽

Electron Beam ◽

Lithium Niobate ◽

Electric Field ◽

Domain Walls ◽

Normal Component ◽

Beam Current ◽

Near Surface ◽

Domain Structures ◽

Sign Inversion

Abstract The focus of the study was to investigate the peculiarities of the domains created by electron beam (e-beam) in a surface layer of congruent lithium niobate, which comparable to a depth of electron beam charge penetration. Direct e-beam writing (DEBW) of different domain structures with a scanning electron microscope was performed on the polar -Z cut. Accelerating voltage 15 kV and e-beam current 100 pA were applied. Different patterns of local irradiated squares were used to create domain structures and single domains. No domain contrast was observed by the PFM technique. Based on chemical etching, it was found that the vertices of the domains created do not reach the surface level. The average deepening of the domain vertices was several hundred nanometers and varied depending on the irradiation dose and the location of the irradiated areas (squares) relative to each other. Computer simulation was applied to analyze the spatial distribution of the electric field in the various irradiated patterns. The deepening was explained by the fact that in the near-surface layer there is a sign inversion of the normal component of the electric field strength vector, which controls the domain formation during DEBW. Thus, with the help of e-beam, domains were created completely located in the bulk, in contrast to the domains that are nucleated on the surface of the -Z cut during the polarization inversion with AFM tip. The detected deepening of e-beam domains suggests the possibility of creating the “head-to-head” domain walls in the near-surface layer lithium niobate by DEBW.

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Thermally activated delayed fluorescence with circularly polarized luminescence characteristics

Chemical Communications ◽

10.1039/c5cc04105h ◽

2015 ◽

Vol 51 (68) ◽

pp. 13268-13271 ◽

Cited By ~ 41

Author(s):

Takuro Imagawa ◽

Shuzo Hirata ◽

Kenro Totani ◽

Toshiyuki Watanabe ◽

Martin Vacha

Keyword(s):

Delayed Fluorescence ◽

Thermally Activated Delayed Fluorescence ◽

Circularly Polarized ◽

Metal Free ◽

Thermally Activated ◽

Sign Inversion ◽

Circularly Polarized Luminescence ◽

Polarized Luminescence ◽

Large Conformational Change ◽

Luminescence Characteristics

A metal-free aromatic compound exhibiting thermally activated delayed fluorescence as well as circularly polarized luminescence (CPL) with dissymmetry factors of 10−3 is reported. This compound shows a sign inversion between its circular dichroism signal and CPL, which is caused by a large conformational change upon photoexcitation.

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Sign inversion of circularly polarized luminescence by geometry manipulation of four naphthalene units introduced into a tartaric acid scaffold

Chemical Communications ◽

10.1039/c4cc04228j ◽

2014 ◽

Vol 50 (85) ◽

pp. 12836-12839 ◽

Cited By ~ 25

Author(s):

Tomoyuki Amako ◽

Kazuki Nakabayashi ◽

Tadashi Mori ◽

Yoshihisa Inoue ◽

Michiya Fujiki ◽

...

Keyword(s):

Circular Dichroism ◽

Tartaric Acid ◽

Circularly Polarized ◽

Sign Inversion ◽

Circularly Polarized Luminescence ◽

Polarized Luminescence ◽

Circular Dichroïsm

Tethering four 1- vs. 2-naphthyls to the same chiral scaffold derived from tartaric acid led to oppositely signed circularly polarized luminescence and circular dichroism.

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