Spontaneous Strain of Mixed Crystal System[N (CH_3)_4]_2ZnBr_4-[P (CH_3)_4]_2ZnBr_4
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概要
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Spont?tuaeotus str?titt accounpanied 1.cy tlae ferroelastic pluase tr'ttr?sitiott of' the rraixed crystal s5rsteuaa[N) .P.(CH3).4]2Zl1BI,l (r : O, 0.05, 0.15, 0.44, 0.75, 0.85, C).93, 1) NV2JS stx-rdied 1.oy X-raydifl'ractiora. Tlte deviatiora atagle 2xf3 of' tlae taaonoclinic angle /3 f'rona 90' slaoxved claar;tcteristicteraaperattrre dependence, xvlrere tlae sign of' Af3 xvas c[aosen so tlaat tI?e configtrratiotu of iozus izutlae ferroelastic l)112186 xvas'tlae S21111(2 f'or all cottapositions. As tire v?tJtre of' x incr'eased to 0.15,t[ae ta'xaxittautn valtme of' Ap iuacrestsed azad tlac slojoe in Line lov'-t.etnperature region decre;tsed.At x = 0.44, 2x/3 was altttost teuanpera+ttzre iuadependerat. Absoltrte valtres xx'ere very suanall atx -::- 0.75. At x :: 0.85 it NV8,S ruegative tlarotrglmotrt, atad aboxxe tlae coracentr?ttion it approxirnartedthe t.)xpical tera'xper?tttrre dependence of' [P(CH3)..j]3ZnBr.j. Tlae tratasitiota teraajcer?tttrre increasedxvitlt increasing 1111, Tlae phase tr'ansition charaged f'rouaa second order to first order otae betxxzeet'xx = 0.85 and 0.93. Strtrcture arraal3'sis rex'ealed tlaat the positiorx of' iotas clrataged otaly slightl.)r irtthe ferr'oel?xstic pl?ase ira each couaapottnd.
- 社団法人日本物理学会の論文
- 1999-08-15
著者
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Asahi Takanao
Department Of Physics Biology And Informatics Faculty Of Science Yamaguchi University
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Hasebe Katsuhiko
Department Of Physics Biology And Informatics Faculty Of Science Yamaguchi University
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Asahi Takanao
Department of Physics,Biology and Informatics,Faculty of science Yamaguchi University,
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Hasebe Katsuhiko
Department of Physics,Biology and Informatics,Faculty of science,Yamaguchi University
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