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Triple‐junction effect and its electric field relaxation in three dielectrics
Author(s) -
Kawamoto Tadashi,
Takuma Tadasu,
Goshima Hisashi,
Shinkai Hiroyuki,
Fujinami Hideo
Publication year - 2009
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20670
Subject(s) - electric field , dielectric , exponent , wedge (geometry) , enhanced data rates for gsm evolution , condensed matter physics , relaxation (psychology) , field (mathematics) , exponential function , materials science , physics , electrical engineering , optics , mathematics , mathematical analysis , engineering , quantum mechanics , telecommunications , pure mathematics , psychology , social psychology , linguistics , philosophy
This paper analyzes the electric field distribution near a wedge‐like edge in arrangements consisting of three dielectrics using analytical and numerical methods. The electric potential behaves exponentially as r n ( r is the distance from the edge) near the edge, leading to an infinitely high field with decreasing r for all cases. The value of the analytically derived exponent n agreed well with that obtained from the numerical field calculations. It has also been demonstrated that rounded contact of the spacer with a zero contact angle can make the electric field constant without showing an exponential rise near the edge. © 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 167(1): 1– 8, 2009; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20670