Impact of opal nanoconfinement on the ferroelectric transition in deuterated KDP
Ferroelectric nanocomposites have great potential applications and are in the focus of modern studies. Their polar properties are due to spontaneous polarization in nanoparticles confined to insulator matrices. The crucial problem is the persistence of ferroelectricity under nanoconfinement as the f...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-07-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379721004800 |
| _version_ | 1818644425101803520 |
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| author | N.I. Uskova E.V. Charnaya D. Yu. Podorozhkin S.V. Baryshnikov A. Yu. Milinskiy |
| author_facet | N.I. Uskova E.V. Charnaya D. Yu. Podorozhkin S.V. Baryshnikov A. Yu. Milinskiy |
| author_sort | N.I. Uskova |
| collection | DOAJ |
| description | Ferroelectric nanocomposites have great potential applications and are in the focus of modern studies. Their polar properties are due to spontaneous polarization in nanoparticles confined to insulator matrices. The crucial problem is the persistence of ferroelectricity under nanoconfinement as the ferroelectric phase transition can shift because of size effects and other grounds. We report the 31P nuclear magnetic resonance studies of nanoparticles of well known ferroelectric potassium dihydrogen phosphate (KDP) embedded into silica opal matrices. Two NMR techniques, static and magic angle spinning (MAS), were applied to confined KDP particles with different levels of deuteration, 80% and > 95%. Measurements were carried out using a Bruker Avance400 pulse spectrometer. Our findings proved unambiguously the pronounced reduction of the ferroelectric transition temperatures in the deuterated KDP/opal nanocoposites compared to the bulk counterparts in striking contrast to previous results. |
| first_indexed | 2024-12-17T00:14:38Z |
| format | Article |
| id | doaj.art-85fbde005fed4419a9133470bea07ac3 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-17T00:14:38Z |
| publishDate | 2021-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-85fbde005fed4419a9133470bea07ac32022-12-21T22:10:44ZengElsevierResults in Physics2211-37972021-07-0126104354Impact of opal nanoconfinement on the ferroelectric transition in deuterated KDPN.I. Uskova0E.V. Charnaya1D. Yu. Podorozhkin2S.V. Baryshnikov3A. Yu. Milinskiy4Physics Department, St. Petersburg State University, St. Petersburg 198504, RussiaPhysics Department, St. Petersburg State University, St. Petersburg 198504, Russia; Corresponding author.Physics Department, St. Petersburg State University, St. Petersburg 198504, RussiaBlagoveschensk State Pedagogical University, Blagoveschensk 675002, Russia; Amur State University, Blagoveshchensk 675000, RussiaBlagoveschensk State Pedagogical University, Blagoveschensk 675002, Russia; Amur State University, Blagoveshchensk 675000, RussiaFerroelectric nanocomposites have great potential applications and are in the focus of modern studies. Their polar properties are due to spontaneous polarization in nanoparticles confined to insulator matrices. The crucial problem is the persistence of ferroelectricity under nanoconfinement as the ferroelectric phase transition can shift because of size effects and other grounds. We report the 31P nuclear magnetic resonance studies of nanoparticles of well known ferroelectric potassium dihydrogen phosphate (KDP) embedded into silica opal matrices. Two NMR techniques, static and magic angle spinning (MAS), were applied to confined KDP particles with different levels of deuteration, 80% and > 95%. Measurements were carried out using a Bruker Avance400 pulse spectrometer. Our findings proved unambiguously the pronounced reduction of the ferroelectric transition temperatures in the deuterated KDP/opal nanocoposites compared to the bulk counterparts in striking contrast to previous results.http://www.sciencedirect.com/science/article/pii/S2211379721004800Ferroelectric nanocompositesDeuterated KDPNMRSmall particlesFerroelectric phase transition temperature |
| spellingShingle | N.I. Uskova E.V. Charnaya D. Yu. Podorozhkin S.V. Baryshnikov A. Yu. Milinskiy Impact of opal nanoconfinement on the ferroelectric transition in deuterated KDP Results in Physics Ferroelectric nanocomposites Deuterated KDP NMR Small particles Ferroelectric phase transition temperature |
| title | Impact of opal nanoconfinement on the ferroelectric transition in deuterated KDP |
| title_full | Impact of opal nanoconfinement on the ferroelectric transition in deuterated KDP |
| title_fullStr | Impact of opal nanoconfinement on the ferroelectric transition in deuterated KDP |
| title_full_unstemmed | Impact of opal nanoconfinement on the ferroelectric transition in deuterated KDP |
| title_short | Impact of opal nanoconfinement on the ferroelectric transition in deuterated KDP |
| title_sort | impact of opal nanoconfinement on the ferroelectric transition in deuterated kdp |
| topic | Ferroelectric nanocomposites Deuterated KDP NMR Small particles Ferroelectric phase transition temperature |
| url | http://www.sciencedirect.com/science/article/pii/S2211379721004800 |
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