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Zhydachevskyy Y, Hizhnyi Y, Nedilko SG, Kudryavtseva I, Pankratov V, Stasiv V, Vasylechko L, Sugak D, Lushchik A, Berkowski M, Suchocki A, Klyui N. Band Gap Engineering and Trap Depths of Intrinsic Point Defects in RAlO 3 (R = Y, La, Gd, Yb, Lu) Perovskites. J Phys Chem C Nanomater Interfaces 2021; 125:26698-26710. [PMID: 34925675 PMCID: PMC8672454 DOI: 10.1021/acs.jpcc.1c06573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/08/2021] [Indexed: 05/11/2023]
Abstract
The possibility of band gap engineering (BGE) in RAlO3 (R = Y, La, Gd, Yb, Lu) perovskites in the context of trap depths of intrinsic point defects was investigated comprehensively using experimental and theoretical approaches. The optical band gap of the materials, E g, was determined via both the absorption measurements in the VUV spectral range and the spectra of recombination luminescence excitation by synchrotron radiation. The experimentally observed effect of E g reduction from ∼8.5 to ∼5.5 eV in RAlO3 perovskites with increasing R3+ ionic radius was confirmed by the DFT electronic structure calculations performed for RMIIIO3 crystals (R = Lu, Y, La; MIII = Al, Ga, In). The possibility of BGE was also proved by the analysis of thermally stimulated luminescence (TSL) measured above room temperature for the far-red emitting (Y/Gd/La)AlO3:Mn4+ phosphors, which confirmed decreasing of the trap depths in the cation sequence Y → Gd → La. Calculations of the trap depths performed within the super cell approach for a number of intrinsic point defects and their complexes allowed recognizing specific trapping centers that can be responsible for the observed TSL. In particular, the electron traps of 1.33 and 1.43 eV (in YAlO3) were considered to be formed by the energy level of oxygen vacancy (VO) with different arrangement of neighboring YAl and VY, while shallower electron traps of 0.9-1.0 eV were related to the energy level of YAl antisite complexes with neighboring VO or (VO + VY). The effect of the lowering of electron trap depths in RAlO3 was demonstrated for the VO-related level of the (YAl + VO + VY) complex defect for the particular case of La substituting Y.
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Affiliation(s)
- Yaroslav Zhydachevskyy
- Institute
of Physics, Polish Academy of Sciences, aleja Lotników 32/46, Warsaw 02-668, Poland
- Lviv
Polytechnic National University, S. Bandera Str. 12, Lviv 79013, Ukraine
| | - Yuriy Hizhnyi
- Taras
Shevchenko National University of Kyiv, Volodymyrska Str. 60, Kyiv 01033, Ukraine
| | - Sergii G. Nedilko
- Taras
Shevchenko National University of Kyiv, Volodymyrska Str. 60, Kyiv 01033, Ukraine
| | - Irina Kudryavtseva
- Institute
of Physics, University of Tartu, W. Ostwald Str. 1, Tartu 50411, Estonia
| | - Vladimir Pankratov
- Institute
of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga 1063, Latvia
| | - Vasyl Stasiv
- Institute
of Physics, Polish Academy of Sciences, aleja Lotników 32/46, Warsaw 02-668, Poland
| | - Leonid Vasylechko
- Lviv
Polytechnic National University, S. Bandera Str. 12, Lviv 79013, Ukraine
| | - Dmytro Sugak
- Lviv
Polytechnic National University, S. Bandera Str. 12, Lviv 79013, Ukraine
| | - Aleksandr Lushchik
- Institute
of Physics, University of Tartu, W. Ostwald Str. 1, Tartu 50411, Estonia
| | - Marek Berkowski
- Institute
of Physics, Polish Academy of Sciences, aleja Lotników 32/46, Warsaw 02-668, Poland
| | - Andrzej Suchocki
- Institute
of Physics, Polish Academy of Sciences, aleja Lotników 32/46, Warsaw 02-668, Poland
| | - Nickolai Klyui
- College of
Physics, Jilin University, 2699 Qianjin Str., Changchun 130012, China
- V.E.
Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 41 prospekt Nauki, Kyiv 03028, Ukraine
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Lushchik A, Kuzovkov VN, Kotomin EA, Prieditis G, Seeman V, Shablonin E, Vasil'chenko E, Popov AI. Evidence for the formation of two types of oxygen interstitials in neutron-irradiated α-Al 2O 3 single crystals. Sci Rep 2021; 11:20909. [PMID: 34686708 PMCID: PMC8536689 DOI: 10.1038/s41598-021-00336-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/27/2021] [Indexed: 11/09/2022] Open
Abstract
Due to unique optical/mechanical properties and significant resistance to harsh radiation environments, corundum (α-Al2O3) is considered as a promising candidate material for windows and diagnostics in forthcoming fusion reactors. However, its properties are affected by radiation-induced (predominantly, by fast neutrons) structural defects. In this paper, we analyze thermal stability and recombination kinetics of primary Frenkel defects in anion sublattice − the F-type electronic centers and complementary oxygen interstitials in fast-neutron-irradiated corundum single crystals. Combining precisely measured thermal annealing kinetics for four types of primary radiation defects (neutral and charged Frenkel pairs) and the advanced model of chemical reactions, we have demonstrated for the first time a co-existence of the two types of interstitial defects – neutral O atoms and negatively charged O- ions (with attributed optical absorption bands peaked at energies of 6.5 eV and 5.6 eV, respectively). From detailed analysis of interrelated kinetics of four oxygen-related defects, we extracted their diffusion parameters (interstitials serve as mobile recombination partners) required for the future prediction of secondary defect-induced reactions and, eventually, material radiation tolerance.
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Affiliation(s)
- A Lushchik
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia
| | - V N Kuzovkov
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, 1063, Latvia
| | - E A Kotomin
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, 1063, Latvia
| | - G Prieditis
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia
| | - V Seeman
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia
| | - E Shablonin
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia
| | - E Vasil'chenko
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia.,Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, 1063, Latvia
| | - A I Popov
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia. .,Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, 1063, Latvia.
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Ryskin AI, Fedorov PP, Lushchik A, Generalov ME, Angervaks AE, Stolyarchuk MV, Vasil’chenko E, Kudryavtseva I. Absorption spectrum of dark purple fluorite, Kent deposit, Kazakhstan. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lushchik A, Feldbach E, Kotomin EA, Kudryavtseva I, Kuzovkov VN, Popov AI, Seeman V, Shablonin E. Distinctive features of diffusion-controlled radiation defect recombination in stoichiometric magnesium aluminate spinel single crystals and transparent polycrystalline ceramics. Sci Rep 2020; 10:7810. [PMID: 32385421 PMCID: PMC7210938 DOI: 10.1038/s41598-020-64778-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 04/20/2020] [Indexed: 11/09/2022] Open
Abstract
MgAl2O4 spinel is important optical material for harsh radiation environment and other important applications. The kinetics of thermal annealing of the basic electron (F, F+) and hole (V) centers in stoichiometric MgAl2O4 spinel irradiated by fast neutrons and protons is analyzed in terms of diffusion-controlled bimolecular reactions. Properties of MgAl2O4 single crystals and optical polycrystalline ceramics are compared. It is demonstrated that both transparent ceramics and single crystals, as well as different types of irradiation show qualitatively similar kinetics, but the effective migration energy Ea and pre-exponent D0 are strongly correlated. Such correlation is discussed in terms of the so-called Meyer-Neldel rule known in chemical kinetics of condensed matter. The results for the irradiated spinel are compared with those for sapphire, MgO and other radiation-resistant materials.
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Affiliation(s)
- A Lushchik
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia
| | - E Feldbach
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia
| | - E A Kotomin
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, LV-1063, Latvia
| | - I Kudryavtseva
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia
| | - V N Kuzovkov
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, LV-1063, Latvia
| | - A I Popov
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, LV-1063, Latvia.
| | - V Seeman
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia
| | - E Shablonin
- Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411, Tartu, Estonia.,Institute of Solid State Physics, University of Latvia, Kengaraga 8, Riga, LV-1063, Latvia
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Nikiforov S, Lushchik A, Nagirnyi V, Romet I, Ponomareva A, Ananchenko D, Moiseykin E. Validation of the model of TSL isothermal decay in dosimetric α-Al2O3 crystals. RADIAT MEAS 2019. [DOI: 10.1016/j.radmeas.2019.01.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ryskin AI, Fedorov PP, Bagraev NT, Lushchik A, Vasil’chenko E, Angervaks AE, Kudryavtseva I. Stabilization of high-temperature disorder of fluorine sublattice by quenching in calcium fluoride crystals. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.06.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zazubovich S, Brik MG, Kirm M, Lushchik A, Nikl M. Preface. RADIAT MEAS 2016. [DOI: 10.1016/j.radmeas.2016.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mironova-Ulmane N, Skvortsova V, Pavlenko A, Feldbach E, Lushchik A, Lushchik C, Churmanov V, Ivanov D, Ivanov V, Aleksanyan E. Luminescence and EPR spectroscopy of neutron-irradiated single crystals of magnesium aluminium spinel. RADIAT MEAS 2016. [DOI: 10.1016/j.radmeas.2015.12.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Lushchik A, Lushchik C, Kärner T, Liblik P, Nagirnyi V, Shablonin E, Shugai A, Vasil'chenko E. Franck–Hertz effect in cathodo- and photoluminescence of wide-gap materials. RADIAT MEAS 2010. [DOI: 10.1016/j.radmeas.2010.01.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kirm M, Feldbach E, Kotlov A, Liblik P, Lushchik A, Oja M, Palcevskis E. VUV spectroscopy and electronic excitations in nano-size alumina. RADIAT MEAS 2010. [DOI: 10.1016/j.radmeas.2009.12.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lushchik A, Feldbach E, Galajev S, Kärner T, Liblik P, Lushchik C, Maaroos A, Nagirnyi V, Vasil’chenko E. Some aspects of radiation resistance of wide-gap metal oxides. RADIAT MEAS 2007. [DOI: 10.1016/j.radmeas.2007.02.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Savikhin F, Kerikmäe M, Feldbach E, Lushchik A, Onishchik D, Rakhimov D, Tokbergenov I. Fast intrinsic emission with the participation of oxyanion and cation excitations in metal sulphates. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pssc.200460158] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- F. Savikhin
- Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia
| | - M. Kerikmäe
- Chemistry Department, University of Tartu, Jacoby 3, 51014 Tartu, Estonia
| | - E. Feldbach
- Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia
| | - A. Lushchik
- Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia
| | - D. Onishchik
- Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia
| | - D. Rakhimov
- Abai Almaty State University, Dastyk 13, 480100 Almaty, Kazakhstan
| | - I. Tokbergenov
- Abai Almaty State University, Dastyk 13, 480100 Almaty, Kazakhstan
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Nagirnyi V, Jönsson L, Kirm M, Kotlov A, Lushchik A, Martinson I, Watterich A, Zadneprovski B. Luminescence study of pure and Fe- or Mo-doped ZnWO4 crystals. RADIAT MEAS 2004. [DOI: 10.1016/j.radmeas.2004.01.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lushchik A, Lushchik C, Kotlov A, Kudryavtseva I, Maaroos A, Nagirnyi V, Vasil'chenko E. Spectral transformers of VUV radiation on the basis of wide-gap oxides. RADIAT MEAS 2004. [DOI: 10.1016/j.radmeas.2004.01.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kotlov A, Jönsson L, Kirm M, Lushchik A, Nagirnyi V, Rivkin E, Watterich A, Zadneprovski B. Luminescence study of self-trapped holes in pure and Fe- or Mo-doped ZnWO4 crystals. RADIAT MEAS 2004. [DOI: 10.1016/j.radmeas.2003.12.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dolgov S, Kärner T, Lushchik A, Maaroos A, Mironova-Ulmane N, Nakonechnyi S. Thermoluminescence centres created selectively in MgO crystals by fast neutrons. Radiat Prot Dosimetry 2002; 100:127-130. [PMID: 12382844 DOI: 10.1093/oxfordjournals.rpd.a005828] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A possibility of using the thermoluminescent detection of collision-created interstitial centres in MgO by the TL peak at 700 K, arising at the radiative recombination of anion interstitials with F+ centres, for the selective detection of fast neutrons in mixed neutron-gamma fields, is examined. Selectivity and sensitivity of such a detector are discussed. For the present time, the sensitivity of the thermoluminescent detection of anion interstitials created by neutron irradiation is comparable to that of the EPR detection of F+ centres, the main limitations of the thermoluminescence method being connected with the background thermoluminescence and absence of suitable luminescence centres in this temperature region, when undoped and untreated MgO crystals are used. Possible ways to overcome these shortcomings are discussed.
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Affiliation(s)
- S Dolgov
- Institute of Physics, University of Tartu, Estonia
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Nagirnyi V, Feldbach E, Jönsson L, Kirm M, Kotlov A, Lushchik A, Nagornaya L, Savikhin F, Svensson G. Study of oriented CdWO4 scintillating crystals using synchrotron radiation. RADIAT MEAS 2001. [DOI: 10.1016/s1350-4487(01)00067-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kirm M, Lushchik A, Lushchik C, Nepomnyashikh A, Savikhin F. Dependence of the efficiency of various emissions on excitation density in BaF2 crystals. RADIAT MEAS 2001. [DOI: 10.1016/s1350-4487(01)00044-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Nagirnyi V, Feldbach E, Jönsson L, Kirm M, Lushchik A, Lushchik C, L. Nagornaya L, D. Ryzhikov V, Savikhin F, Svensson G, A. Tupitsina I. Excitonic and recombination processes in CaWO4 and CdWO4 scintillators under synchrotron irradiation. RADIAT MEAS 1998. [DOI: 10.1016/s1350-4487(98)00017-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lushchik A, Feldbach E, Kink R, Lushchik C, Kirm M, Martinson I. Secondary excitons in alkali halide crystals. Phys Rev B Condens Matter 1996; 53:5379-5387. [PMID: 9984144 DOI: 10.1103/physrevb.53.5379] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Lushchik A, Kudrjavtseva I, Lushchik C, Vasil'chenko E, Kirm M, Martinson I. Creation of stable Frenkel defects by vacuum uv radiation in KBr crystals under conditions of multiplication of electronic excitations. Phys Rev B Condens Matter 1995; 52:10069-10072. [PMID: 9980053 DOI: 10.1103/physrevb.52.10069] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Lushchik A, Feldbach E, Lushchik C, Kirm M, Martinson I. Multiplication mechanisms of electronic excitations in KBr and KBr:Tl crystals. Phys Rev B Condens Matter 1994; 50:6500-6503. [PMID: 9977040 DOI: 10.1103/physrevb.50.6500] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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