High Dielectric Constant in ACu3Ti4O12 and ACu3Ti3FeO12 Phases

doi:10.1006/JSSC.2000.8703

Home
/
Papers
/
High Dielectric Constant in ACu3Ti4O12 and ACu3Ti3FeO12 Phases

Journal Article•DOI•

High Dielectric Constant in ACu3Ti4O12 and ACu3Ti3FeO12 Phases

Munirpallam A. Subramanian¹, Dong Li¹, N. Duan², Barbara A. Reisner³, Arthur W. Sleight² - Show less +1 more•Institutions (3)

DuPont Central Research¹, Oregon State University², National Institute of Standards and Technology³

01 May 2000-Journal of Solid State Chemistry (Academic Press)-Vol. 151, Iss: 2, pp 323-325

TL;DR: In this article, the dielectric properties of isostructural compounds of the type A 2/3 Cu 3 Ti 4 O 12 (A =trivalent rare earth or Bi) have been presented.

read less

About: This article is published in Journal of Solid State Chemistry.The article was published on 2000-05-01. It has received 1825 citations till now. The article focuses on the topics: Dielectric & Calcium copper titanate.

...read moreread less

Citations

PDF

Open Access

More filters

Journal Article•DOI•

Optical Response of High-Dielectric-Constant Perovskite-Related Oxide

[...]

Christopher C. Homes¹, Thomas Vogt¹, S. M. Shapiro¹, S. Wakimoto¹, S. Wakimoto², Arthur P. Ramirez³ - Show less +2 more•Institutions (3)

Brookhaven National Laboratory¹, Massachusetts Institute of Technology², Los Alamos National Laboratory³

27 Jul 2001-Science

TL;DR: Optical conductivity measurements on the perovskite-related oxide CaCu3Ti4O12 provide a hint of the physics underlying the observed giant dielectric effect in this material, suggesting the presence of a strong absorption at very low frequencies due to dipole relaxation.

...read moreread less

Abstract: Optical conductivity measurements on the perovskite-related oxide CaCu3Ti4O12 provide a hint of the physics underlying the observed giant dielectric effect in this material. A low-frequency vibration displays anomalous behavior, implying that there is a redistribution of charge within the unit cell at low temperature. At infrared frequencies (terahertz), the value for the dielectric constant is approximately 80 at room temperature, which is far smaller than the value of approximately 10(5) obtained at lower radio frequencies (kilohertz). This discrepancy implies the presence of a strong absorption at very low frequencies due to dipole relaxation. At room temperature, the characteristic relaxation times are fast (less than or approximately 500 nanoseconds) but increase dramatically at low temperature, suggesting that the large change in dielectric constant may be due to a relaxor-like dynamical slowing down of dipolar fluctuations in nanosize domains.

...read moreread less

1,540 citations

Journal Article•DOI•

CaCu3Ti4O12: One-step internal barrier layer capacitor

[...]

Derek C. Sinclair, Timothy B. Adams, Finlay D. Morrison, Anthony R. West

18 Mar 2002-Applied Physics Letters

TL;DR: Subramanian et al. as discussed by the authors attributed the giant-dielectric phenomenon to a grain boundary (internal) barrier layer capacitance (IBLC) instead of an intrinsic property associated with the crystal structure.

...read moreread less

Abstract: There has been much recent interest in a so-called “giant-dielectric phenomenon” displayed by an unusual cubic perovskite-type material, CaCu3Ti4O12; however, the origin of the high permittivity has been unclear [M. A. Subramanian, L. Dong, N. Duan, B. A. Reisner, and A. W. Sleight, J. Solid State Chem. 151, 323 (2000); C. C. Homes, T. Vogt, S. M. Shapiro, S. Wakimoto, and A. P. Ramirez, Science 293, 673 (2001); A. P. Ramirez, M. A. Subramanian, M. Gardel, G. Blumberg, D. Li, T. Vogt, and S. M. Shapiro, Solid State Commun. 115, 217 (2000)]. Impedance spectroscopy on CaCu3Ti4O12 ceramics demonstrates that they are electrically heterogeneous and consist of semiconducting grains with insulating grain boundaries. The giant-dielectric phenomenon is therefore attributed to a grain boundary (internal) barrier layer capacitance (IBLC) instead of an intrinsic property associated with the crystal structure. This barrier layer electrical microstructure with effective permittivity values in excess of 10 000 can be fa...

...read moreread less

1,438 citations

Journal Article•DOI•

Fundamentals, processes and applications of high-permittivity polymer–matrix composites

[...]

Zhi-Min Dang¹, Zhi-Min Dang², Zhi-Min Dang³, Jinkai Yuan¹, Jun-Wei Zha², Tao Zhou¹, Shengtao Li³, Guo-Hua Hu⁴, Guo-Hua Hu⁵ - Show less +5 more•Institutions (5)

Beijing University of Chemical Technology¹, University of Science and Technology Beijing², Xi'an Jiaotong University³, Institut Universitaire de France⁴, Centre national de la recherche scientifique⁵

01 May 2012-Progress in Materials Science

TL;DR: In this paper, the authors focus on the important role and challenges of high-k polymer-matrix composites (PMC) in new technologies and discuss potential applications of highk PMC.

...read moreread less

1,412 citations

Cites background from "High Dielectric Constant in ACu3Ti4..."

...To prepare polymer matrix composites with even higher dielectric permittivity, LTNO and CCTO, two high permittivity ceramic fillers are often used [35–37,45,117]....
[...]
...Contents lists available at SciVerse ScienceDirect Progress in Materials Science journa l homepage : www.e lsev ie r .com/ loca te /pmatsc i Fundamentals, processes and applications of high-permittivity polymer–matrix composites Zhi-Min Dang a,b,c,⇑, Jin-Kai Yuan b, Jun-Wei Zha a, Tao Zhou b, Sheng-Tao Li c, Guo-Hua Hu d,e,⇑ a Department of Polymer Science and Engineering, School of Chemical and Biological Engineering, University of Science & Technology Beijing, Beijing 100083, China b State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China c State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China d Laboratory of Reactions and Process Engineering, Nancy University, CNRS-ENSIC-INPL, 1 rue Grandville, B.P. 451, 54001 Nancy Cedex, France e Institut Universitaire de France, Maison des Universités, 103 Boulevard Saint-Michel, 75005 Paris, France a r t i c l e i n f o Article history: Received 21 April 2011 Received in revised form 27 May 2011 Accepted 14 August 2011 Available online 25 August 2011 0079-6425/$ - see front matter 2011 Elsevier Lt doi:10.1016/j.pmatsci.2011.08.001 Abbreviations: Al2O3, alumina; BaTiO3, barium CH2Cl2, dichlodo methylene chloride; CNF, carbon dodecylbenzene sulfonic acid; DMF, dimethyl form density polyethylene; LTNO, Li and Ti codoped N nanotubes; NMP, N-methyl-pyrrolidone; ODA, 4, PbTiO3, lead titanate; PC, polycarbonate; PCMS, po PFSA, perfluorosulfonic acid; PHAE, polyhydroxyam pyromellitic dianhydride; PMeT, poly(3-methylt niobate–lead titanate; POM, polyoxymethylene or PU, polyurethane; PVA, polyvinyl alcohol; PVDF, p ylene); P(VDF–TrFE–CFE), poly (vinylidene fluorid dene fluoride–trifluoroethylene–chlorotrifluoroeth silicon dioxide; SPAI, siloxanemodified polyamideim 3,4,5-trifluorobromobenzene; TFP-MWNT, trifluoro dioxide; TMPTA, trimethylolpropane triacrylate; UH nanoplates....
[...]
...By employing a direct mixing process, Dang et al. fabricated PVDF composites based on MWNT [51], CF [58], Ni [19], BaTiO3 [40], (Ni–BaTiO3) [20], (MWNT–BaTiO3) [57], PANI [75], and LTNO [35–37], respectively....
[...]
...Ceramic particles such as BaTiO3 [29,34,146,174,175], PMN–PT [28], PZT [107], LTNO [35–37] and CCTO [45,117] are often chosen as fillers to obtain two-phase high permittivity polymer composites....
[...]
...Compared to the LTNO/PVDF composites, the CCTO/PI composite films containing 40 vol% CCTO prepared by in situ polymerization had a maximum value of dielectric permittivity of about 50 at 100 Hz, which was 16 times larger than thatof PI matrix [45]....
[...]

Journal Article•DOI•

Giant dielectric constant response in a copper-titanate

[...]

Arthur P. Ramirez¹, Munirpallam A. Subramanian², Margaret L. Gardel¹, Girsh Blumberg¹, Der-Chiang Li², Thomas Vogt³, S. M. Shapiro³ - Show less +3 more•Institutions (3)

Alcatel-Lucent¹, DuPont Central Research², Brookhaven National Laboratory³

19 Jun 2000-Solid State Communications

TL;DR: In this paper, the authors describe a material, cubic CaCu 3 Ti 4 O 12, which exhibits a large dielectric response, the temperature-dependence of which has not been seen, to our knowledge, in any existing material.

...read moreread less

1,006 citations

Journal Article•DOI•

Two‐Dimensional Dielectric Nanosheets: Novel Nanoelectronics From Nanocrystal Building Blocks

[...]

Minoru Osada¹, Takayoshi Sasaki¹•Institutions (1)

National Institute for Materials Science¹

10 Jan 2012-Advanced Materials

TL;DR: The progress made in the properties of dielectric nanosheets is reviewed, highlighting emerging functionalities in electronic applications and a perspective on the advantages offered by this class of materials for future nanoelectronics.

...read moreread less

Abstract: Two-dimensional (2D) nanosheets, which possess atomic or molecular thickness and infinite planar lengths, are regarded as the thinnest functional nanomaterials. The recent development of methods for manipulating graphene (carbon nanosheet) has provided new possibilities and applications for 2D systems; many amazing functionalities such as high electron mobility and quantum Hall effects have been discovered. However, graphene is a conductor, and electronic technology also requires insulators, which are essential for many devices such as memories, capacitors, and gate dielectrics. Along with graphene, inorganic nanosheets have thus increasingly attracted fundamental research interest because they have the potential to be used as dielectric alternatives in next-generation nanoelectronics. Here, we review the progress made in the properties of dielectric nanosheets, highlighting emerging functionalities in electronic applications. We also present a perspective on the advantages offered by this class of materials for future nanoelectronics.

...read moreread less

958 citations

1
2
3
4
…
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200

Collapse

References

PDF

Open Access

More filters

Journal Article•DOI•

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides

[...]

R. D. Shannon

01 Sep 1976-Acta Crystallographica Section A

TL;DR: The effective ionic radii of Shannon & Prewitt [Acta Cryst. (1969), B25, 925-945] are revised to include more unusual oxidation states and coordinations as mentioned in this paper.

...read moreread less

Abstract: The effective ionic radii of Shannon & Prewitt [Acta Cryst. (1969), B25, 925-945] are revised to include more unusual oxidation states and coordinations. Revisions are based on new structural data, empirical bond strength-bond length relationships, and plots of (1) radii vs volume, (2) radii vs coordination number, and (3) radii vs oxidation state. Factors which affect radii additivity are polyhedral distortion, partial occupancy of cation sites, covalence, and metallic character. Mean Nb5+-O and Mo6+-O octahedral distances are linearly dependent on distortion. A decrease in cation occupancy increases mean Li+-O, Na+-O, and Ag+-O distances in a predictable manner. Covalence strongly shortens Fe2+-X, Co2+-X, Ni2+-X, Mn2+-X, Cu+-X, Ag+-X, and M-H- bonds as the electronegativity of X or M decreases. Smaller effects are seen for Zn2+-X, Cd2+-X, In2+-X, pb2+-X, and TI+-X. Bonds with delocalized electrons and therefore metallic character, e.g. Sm-S, V-S, and Re-O, are significantly shorter than similar bonds with localized electrons.

...read moreread less

51,997 citations

Journal Article•DOI•

Synthèse et caractérisation d'une série de titanates pérowskites isotypes de [CaCu3](Mn4)O12

[...]

B. Bochu, M.N. Deschizeaux, J.C. Joubert, A. Collomb¹, J. Chenavas¹, M. Marezio¹ - Show less +2 more•Institutions (1)

Centre national de la recherche scientifique¹

01 Aug 1979-Journal of Solid State Chemistry

TL;DR: A series of titanates with perovskite-like arrangements and isostructural with [CaCu3](Mn4)O12 have been synthesized as discussed by the authors, where the total charge of the A sites can be modified by substituting the Ca2+ cations with monovalent ones and the tetravalent manganese cations of the B sites by a mixture of (Ti4+ + M5+) in which M = Ta, Nb, Sb, or (2) by a combination of cations plus vacancies.

...read moreread less

209 citations

Journal Article•DOI•

Synthesis, crystal structure, and mössbauer study of a series of perovskite-like compounds [ACu3] (M, Fe)4O12

[...]

C. Meyer, Y. Gros, B. Bochu, A. Collomb, J. Chenavas, J.C. Joubert, M. Marezio - Show less +3 more

16 Aug 1978-Physica Status Solidi (a)

TL;DR: A series of cubic perovskite-like compounds with the general formula [ACu3](M, Fe)4O12 is synthesized in this paper, where the structure of [NdCu3](Ti3Fe)O12 (space group Im3) is refined from room temperature neutron diffraction data.

...read moreread less

Abstract: A series of cubic perovskite-like compounds with the general formula [ACu3](M, Fe)4O12 is synthesized. The A-sites are occupied by large cations such as Th4+ or rare earths R3+. The B-sites are statistically occupied by Fe3+ cations and by tetravalent M4+ cations such as Mn4+ or Ti4+ The structure of [NdCu3](Ti3Fe)O12 (space group Im3) is refined from room temperature neutron diffraction data. Mossbauer spectroscopy data performed on [NdCu3](Ti3Fe)O12 and on [ThCu3] · (Mn2Fe2)O12 show that a magnetic order takes place below 14 K for the first compound and below 200 K for the second one. Es wurde eine Reihe von kubischen perovskit-ahnlichen Verbindungen mit der allgemeinen Formel [ACu3](M, Fe)4O12 hergestellt. Die A-Platze werden von grosen Kationen wie Th4+ oder Seltenen Erden R3+ besetzt. Die B-Platze werden statistisch besetzt durch Fe3+-Kationen und durch tetravalente M4+-Kationen wie Mn4+ oder Ti4+. Die Struktur von [NdCu3](Ti3Fe)O12 (Raumgruppe Im3) wird aus Neutronenbeugungswerten bei Zimmertemperatur gewonnen. Mosbauer-spektroskopiewerte an [NdCu3](Ti3Fe)O12 und an [ThCu3](Mn2Fe2)O12 zeigen, das eine magnetische Ordnung unterhalb 14 K fur die erste Verbindung und unterhalb 200 K fur die zweite Verbindung stattfindet.

...read moreread less

11 citations

Journal Article•DOI•

Synthesis and structure of a perovskite related oxide, Bi23Cu3Ti4O12

[...]

I. Bryntse¹, Per-Erik Werner¹•Institutions (1)

Stockholm University¹

01 Apr 1990-Materials Research Bulletin

TL;DR: The phase Bi23Cu3Ti4O12 has been synthesized and studied with electron and powder diffraction in this article, where the structure is of the perovskite related CaCu3Mn 4O12 type.

...read moreread less

9 citations