Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Georg Völkel"'
Autor:
Mantas Šimėnas, Vytautas Balevicius, Marko Bertmer, Maciej Ptak, Juras Banys, Andreas Pöppl, Miroslaw Maczka, Laurynas Dagys, Arafat Hossain Khan, Georg Völkel
Publikováno v:
The Journal of Physical Chemistry C. 122:10284-10292
We present a combined differential scanning calorimetry (DSC) and infrared (IR), Raman, electron paramagnetic resonance (EPR), and NMR spectroscopy study of dimethylammonium zinc formate frameworks [(CH3)2NH2][Zn(HCOO)3] containing 14N and 15N nitrog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5c747480078966696b16728715dde6d
https://doi.org/10.1021/acs.jpcc.8b02734
https://doi.org/10.1021/acs.jpcc.8b02734
Electron paramagnetic resonance of a copper doped [(CH3)2NH2][Zn(HCOO)3] hybrid perovskite framework
Autor:
Kestutis Aidas, Jūras Banys, Daniel Klose, Georg Völkel, Aneta Ciupa, Mantas Šimėnas, Gediminas Usevičius, Andreas Pöppl, Mirosław Mączka, Gunnar Jeschke
Publikováno v:
Physical Chemistry Chemical Physics. 20:12097-12105
We report a continuous-wave (CW) and pulse electron paramagnetic resonance (EPR) as well as pulse electron nuclear double resonance (ENDOR) study of Cu2+ doped [(CH3)2NH2][Zn(HCOO)3] hybrid perovskite which exhibits a structural phase transition. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f7cbcdc1720693577c267d2142bc6af
https://doi.org/10.1039/c8cp01426d
https://doi.org/10.1039/c8cp01426d
Autor:
Jūras Banys, Sergejus Balčiūnas, Mirosław Mączka, Maciej Ptak, Georg Völkel, Mantas Šimėnas, Andreas Pöppl, Monika Trzebiatowska
Publikováno v:
Journal of Materials Chemistry C. 5:4526-4536
We present a combined continuous-wave (CW) and pulse electron paramagnetic resonance (EPR), pulse electron-nuclear double resonance (ENDOR), pyrocurrent as well as broadband dielectric study of a [CH3NH2NH2][Zn(HCOO)3] dense perovskite metal–organi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6af7ab86cd48508cc9ada0828d6fea8
https://doi.org/10.1039/c7tc01140g
https://doi.org/10.1039/c7tc01140g
Publikováno v:
The Journal of Physical Chemistry C. 120:19751-19758
Electron paramagnetic resonance (EPR) and pulse electron–nuclear double resonance (ENDOR) spectroscopies are applied to investigate the structural phase transition and the low temperature phase in manganese- and copper-doped [NH3(CH2)4NH3][Zn(HCOO)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4974ad26a22f41f78ad3dbd9b9490eab
https://doi.org/10.1021/acs.jpcc.6b07389
https://doi.org/10.1021/acs.jpcc.6b07389
Autor:
Mantas, Šimėnas, Aneta, Ciupa, Gediminas, Usevičius, Kęstutis, Aidas, Daniel, Klose, Gunnar, Jeschke, Mirosław, Mączka, Georg, Völkel, Andreas, Pöppl, Jūras, Banys
Publikováno v:
Physical chemistry chemical physics : PCCP. 20(17)
We report a continuous-wave (CW) and pulse electron paramagnetic resonance (EPR) as well as pulse electron nuclear double resonance (ENDOR) study of Cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::ab282c4d0935db0c7b8e4dfaebe384ad
https://pubmed.ncbi.nlm.nih.gov/29676417
https://pubmed.ncbi.nlm.nih.gov/29676417
Publikováno v:
Applied Physics A. 96:537-541
Dielectric response of water confined in metal–organic frameworks was investigated in broad temperature range from 140 to 410 K and from 20 Hz to 1 MHz using a capacitance bridge. Several dispersion regions of characteristic shape were found, cause
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4603cb0be13f76552ae4fa9a302ac191
https://doi.org/10.1007/s00339-008-5052-7
https://doi.org/10.1007/s00339-008-5052-7
Publikováno v:
Phase Transitions. 81:303-314
The dielectric spectra of ferroelectric hydrogen bonded betaine phosphate0.05 betaine phosphite0.95 (DBP0.05DBPI0.95) was investigated in the very wide temperature (300–20 K) and frequency (20–35 GHz) regions. The dielectric dispersion was analyz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a832e141667013b7bb57e3fe806d6e0e
https://doi.org/10.1080/01411590701695737
https://doi.org/10.1080/01411590701695737
Autor:
Georg Völkel, Martin Hartmann, W. Bohlman, V. Umamaheswari, Martynas Kinka, J. Banys, Andreas Pöppl
Publikováno v:
Ferroelectrics. 353:97-103
Dielectric properties of betaine phosphite (BPI) crystals, synthesized directly in the pores of MCM-41 materials, have been investigated in the frequency range from 20 Hz to 1 MHz for the temperature interval from 100 K to 400 K. Three MCM-41 materia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de99be69c5bcd34707cf882abb2e45c6
https://doi.org/10.1080/00150190701368042
https://doi.org/10.1080/00150190701368042
Autor:
Andrejus Mikonis, J. Banys, Robertas Grigalaitis, Georg Völkel, Saulius Lapinskas, A. Matulis
Publikováno v:
Ferroelectrics. 353:154-163
In this paper the method of calculation of two dimensional distribution function from dielectric spectra is presented. Simulation showed, that it is possible to obtain distribution function from experimental dielectric spectra.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc588c9f46b62c9b57ae75961af1640f
https://doi.org/10.1080/00150190701368117
https://doi.org/10.1080/00150190701368117
Autor:
J. Banys, R. Sobiestianskas, Andreas Pöppl, Martynas Kinka, Georg Völkel, A. Meskauskas, Winfried Böhlmann, Martin Hartmann
Publikováno v:
Ferroelectrics. 346:173-180
In this paper the results of dielectric spectroscopy of MCM-41 mesoporous material with incorporated MEOH are presented. Three dispersion regions of the confined MEOH have been found. The dielectric dispersion in the low temperature region is caused
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ca9479eccbfe341be64b54875004383
https://doi.org/10.1080/00150190601182501
https://doi.org/10.1080/00150190601182501