Application de la méthode des GETS à la préparation de films minces monocristallins de TGS et TGSe deutériés pour spectroscopie infrarouge

Xavier Gerbaux; Jean Marc Waldschmidt; et Armand Hadni

doi:10.1364/AO.17.001616

Applied Optics
Vol. 17,
Issue 10,
pp. 1616-1620
(1978)
•https://doi.org/10.1364/AO.17.001616

Application de la méthode des GETS à la préparation de films minces monocristallins de TGS et TGSe deutériés pour spectroscopie infrarouge

Xavier Gerbaux, Jean Marc Waldschmidt, and et Armand Hadni

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Xavier Gerbaux, Jean Marc Waldschmidt, and et Armand Hadni, "Application de la méthode des GETS à la préparation de films minces monocristallins de TGS et TGSe deutériés pour spectroscopie infrarouge," Appl. Opt. 17, 1616-1620 (1978)

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Abstract

The GETS method (germination epitaxique dans des trous submicroscopiques) needs only a drop of TGS or TGSe solution in heavy water to give a single crystal film. The thickness e (e ≃ 1 μm) is perfectly suited for mid-ir spectroscopy with polarized radiations. New lines are observed. In opposition to previous studies, there is no observation of lines disappearing at the Curie temperature, but several lines are continuously broadening when the temperature is increased from 80 K to 300 K.

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		TGS
groupe d'atomes	nature des vibrations	$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$	$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$
SO₄^{− −}	ν₁	990	988		+	990
	ν₃	1135	1128			1165
			1150	+	+	1180	+
			1168		1140	1185
	ν₄	618	615		610	610	610
		630	625	630	630	622	620
							645
	ν₂ + ν₄	1038	1035	+	+	+
	ν₂ + ν₄	1085	1075		+	+
NH₃⁺	Angulaire	1500		1545	+		1100
	Pendulaire	1110	1107	+
	Pendulaire	1120	1118
	Rotation plane	867	868	870	770	770	770
	Rotation plane						810
COO⁻	Valence asymétrique	1630	1620		+	+
	Valence symétrique	1370		1382	1340		+
				1400	1380	1420	+
					1420
N–C–O	Déformation				530	540	530
N–C–O	Déformation	570	572	580	570		560
C–C–O	Déformation	500	507	500	478	480	480
CH₂	Déformation	1440	1425	1432
	Rotation plane	890		890
		900	908	900	755	760	720
		910	919	910
		920
C = O	Valence	1700		1700	+		+
C = O	Valence	1748		1750	+		+
N – C	Valence	1298	1310	1308	1280	1275	1280
N – C	Valence		1330			1290
C–CN	Valence asymétrique		1020		+

TGS
$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$	$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$
		682	725	722
		1230		830
1320				940
1330					1200
1465		1468
		1545
1565

		TGSe
groupe d'atomes	nature des vibrations	$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$	$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$
SO₄^{− −}	ν₁	832	845	845	825	818
	ν₃	845	855	865	840	850	870
		880	865	872	850	868	890
				880
	ν₄	405	403	415	420	418	450
	ν₄		445	460
NH₃⁺	Angulaire	1550	1500		1082	1090
	Pendulaire	1110	1087	1115
		1120	1118	1140	788	775	775
				1161
	Rotation plane	917	920		800
COO⁻	Valence asymétrique	1615	1620	1620	+	1640
	Valence symétrique	1438	1428	1430	1382		+
	Valence symétrique				1365
N–C–O	Déformation	565	572	565	540	540	540
N–C–O	Déformation		585		560
CCO	Déformation	475		500	480	442	480
		500
		510
CH₂	Déformation	1495
CH₂	Rotation plane	928	920	925	765	760	765
C = O	Valence	1710	1698		+
N – C	Valence	1295	1308	1308	1285		1275
N – C	Valence		1323
C–CN	Valence asymétrique	1000	990	1000	1035		995
C–CN	Valence asymétrique	1032	1032	1032

TGSe
$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$	$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$
	629		610
	648	648	625
665					648
		683		720
1328			725
			938
			958
			995	992
					1090
				1140
			1155		1155
				1160
				1172	1175
			1180
				1188
					1198
			1315
			1340
				1422	1420

		TGS
groupe d'atomes	nature des vibrations	$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$	$\vec{E} / / X$	$\vec{E} / / C_{2}$	$\vec{E} / / Z$
SO₄^{− −}	ν₁	990	988		+	990
	ν₃	1135	1128			1165
			1150	+	+	1180	+
			1168		1140	1185
	ν₄	618	615		610	610	610
		630	625	630	630	622	620
							645
	ν₂ + ν₄	1038	1035	+	+	+
	ν₂ + ν₄	1085	1075		+	+
NH₃⁺	Angulaire	1500		1545	+		1100
	Pendulaire	1110	1107	+
	Pendulaire	1120	1118
	Rotation plane	867	868	870	770	770	770
	Rotation plane						810
COO⁻	Valence asymétrique	1630	1620		+	+
	Valence symétrique	1370		1382	1340		+
				1400	1380	1420	+
					1420
N–C–O	Déformation				530	540	530
N–C–O	Déformation	570	572	580	570		560
C–C–O	Déformation	500	507	500	478	480	480
CH₂	Déformation	1440	1425	1432
	Rotation plane	890		890
		900	908	900	755	760	720
		910	919	910
		920
C = O	Valence	1700		1700	+		+
C = O	Valence	1748		1750	+		+
N – C	Valence	1298	1310	1308	1280	1275	1280
N – C	Valence		1330			1290
C–CN	Valence asymétrique		1020		+

Abstract

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Figures (3)

Tables (4)

Equations (24)

Applied Optics