STRUKTURNI FAZNI
PREHODI V KRISTALIH IN FEROELEKTRIKI
V
kristalih često pride pri spreminjanju temperature do faznih prehodov. Pri
faznem prehodu se spremeni struktura kristala, lahko pa tudi njegove
lastnostnosti. Tak primer je prehod iz paraelektrične v
feroelektrično fazo. Jedrska magnetna resonanca in jedrska kvadrupolna
resonanca zaznata tudi zelo majhne spremembe, do katerih pride pri faznem
prehodu v okolici opazovanih jeder.
Objavljena
dela:
1.
R. Blinc, M. Mali, R. Osredkar, R. Parker, J. Seliger, S. Žumer, 75As Zeeman
perturbed NQR in antiferroelectric NH4H2AsO4, J. Chem.
Phys. 59, 2947-2950
(1973)
2.
R. Blinc, J. Seliger, R. Osredkar, T. Prelesnik, Double resonance study of the
17O quadrupole coupling in paraelectric and ferroelectric
KH2PO4, Chem. Phys.
Letters 23, 486-488 (1973)
3.
R. Blinc, J. Seliger, R. Osredkar,M. Mali, 17O quadrupole resonance study of the
ferroelectric phase transition in KH2PO4, Phys.
Letters 47A, 131-132 (1974)
4.
R. Blinc, M. Mali, R. Osredkar, J. Seliger , Nitrogen and chlorine NQR in
paraelectric and ferroelectric
tris-sarcosine calcium chloride, J. Chem. Phys. 63,
35-37 (1975)
5.
J. Seliger, R. Blinc, H. Arend, R. Kind,
Proton-14N
double resonance study of the
structural phase transitions in the
perovskite type layer compound
(CH3NH3)2CdCl4, Z. Phys. B 25, 189-195 (1976)
6.
R. Blinc, M. Burgar, V. Rutar, J. Seliger, I. Zupančič, 31P chemical-shift study of
the ferroelectric transition in KD2PO4, Phys. Rev. Letters
38, 92-95 (1977)
7.
R. Blinc, M. Burgar, B. Ložar, J. Seliger, J. Slak, V. Rutar, H. Arend, R.
Kind,
Proton NMR study of the structural phase
transitions in perovskite layer
compounds: (CnH2n+1NH3)2CdCl4 and (NH3-(CH2)n-NH3)CdCl4, J. Chem.
Phys. 66, 278-287 (1977)
8.
R. Kind, S. Pleško, H. Arend, R. Blinc, B. Žekš, J. Seliger, B. Ložar, J. Slak,
A. Levstik, C. Filipič, V. Žagar, G.
Lahajnar, F. Milia, G Chapuis, Dynamics
of the
n-decylammonium chains in the
perovskite-type layer structure compound
(C10H21NH3)2CdCl4, J. Chem. Phys. 71, 2118-2130
(1979)
9.
J. Seliger, V. Žagar, R. Blinc, 17O NQR study of the ferroelectric phase
transition
in PbHPO4, Phys. Letters A 93, 149-151
(1983)
10.
J. Seliger, V. Žagar, R. Blinc, H. Arend, G. Chapuis, 14N and 35Cl double
resonance study of the phase transition in
the intercalated bilayer compound
C10H21NH3Cl, J. Chem. Phys. 78, 2661-2664 (1983)
11.
J. Seliger, V. Žagar, R. Blinc, L. A. Shuvalov, 87Rb
and 85Rb
NQR study of the
phase transition in RbH3(SeO3)2, J. Physique
44, 521-524 (1983)
12.
J. Seliger, V. Žagar, R. Blinc, Oxygen-17 NQR study of the phase transition in
the squaric acid, J. Magn. Reson. 58,
359-369 (1984)
13.
J. Seliger, V. Žagar, R. Blinc, 17O NQR study of the pseudo-one-dimensional
ferroelectric phase transition in CsH2PO4, J. Chem.
Phys. 81, 3247-3249 (1984)
14.
S. Jurga, J. Seliger, R. Blinc, H. W. Spiess, 14N and 35Cl double resonance
study of the low-temperature phase
transition in CH3NH3ClO4, Phys.
Letters A
116, 295-298 (1986)
15.
J. Seliger, V. Žagar, R. Blinc, A. Novak, 17O and 39K quadrupole resonance
study of the ferroelastic phase transition
in KH3(SeO3)2, J. Chem.
Phys. 84,
5857-5861 (1986)
16.
J. Seliger, V. Žagar, R. Blinc, A. Novak, S. Rodin, 17O and 14N quadrupole
coupling and the mechanism of the
ferroelectric transition in diglycine nitrate,
Ferroelectrics Letters 6, 93-102
(1986)
17.
J. Seliger, V. Žagar, R. Blinc, F. Milia, S. Giannacopoulos, R. Kind, Proton-14N
double resonance study of the ferroelectric
phase transition in (CH3NH3)HgCl3,
Solid State Commun. 59, 877-879
(1986)
18.
J. Seliger, V. Žagar, R. Blinc, R. Kind, H. Arend, F. Milia, 14N and 35Cl nuclear
quadrupole double resonance study of the
structural phase transitions in n-
octylammoniumchloride, Z. Phys. B -
Condensed Matter 67, 363-368 (1987)
19.
J. Seliger, V. Žagar, R. Blinc, R. Kind, H. Arend, G. Chapuis, K. J. Schenk,
F. Milia, 14N and 35Cl nuclear quadrupole double
resonance study of the phase
transiitions in n-decylammoniumchloride and
n-hexylammoniumchloride,
Z. Phys. B - Condensed Matter 69,
379-384 (1987)
20.
S. V. Rodin, J. Seliger, R. Blinc, V. Žagar, JKR 14N i 17O
v kristalle diglicinnitrata,
Fizika Tverdogo Tela, 29, 1871-1873 (1987)
21.
J. Seliger, V. Žagar, R. Blinc, V. H. Schmidt, 17O NQR study of the
antiferroelectric phase transition in TlH2PO4, J. Chem.
Phys. 88, 3260-3262
(1988)
22.
K. J. Schenk, G. Chapuis, R. Kind, R. Blinc, J. Seliger, Evidence for a
reconstructive phase transition involving
hydrocarbon chain separation in the layer
structure C10H21NH3Cl, J. Molecular Structure 176,
331-335 (1988)
23.
J. Seliger, V. Žagar, R. Blinc,14N NQR study of the structural phase transitions
in NH4NO3, Z. Phys. B - Condensed Matter 77,
439-443 (1989)
24.
R. Blinc, J. Seliger, V. Žagar, T. Apih, J. Dolinšek, H. Warhanek, A. Fuith,
W. Schranz, 14N nuclear-quadrupole-resonance study
of the sructural phase
transitions in NH4SCN, Phys. Rev. B 42,
8125-8132 (1990)
25.
R. Blinc, J. Seliger, T. Apih, J. Dolinšek, I. Zupančič, O. Plyushch,
A. Fuith,
W. Schranz, H. Warhanek, B. Topič, U.
Haeberlen, 39K
NMR study of the
antiferroelectric phase transition in
potassium thiocyanate, Phys. Rev. B 43,
569-574 (1991)
26.
W. Schranz, A. Fuith, H. Warhanek, R. Blinc, J. Seliger, T. Apih, J. Dolinšek,
Microscopic model for the structural phase
transitions in NH4SCN
and KSCN,
Ferroelectrics 125, 683-687 (1992)
27.
J. Seliger, V. Žagar, R. Blinc,
Nuclear-quadrupole double-resonance study of
RbH2PO4 in the supercooled high-temperature monoclinic
phase, Phys. Rev. B
47, 14753-14756 (1993)
28.
J. Seliger, V. Žagar, R. Blinc, 1H-75As nuclear-quadrupole double-resonance
study of the high-temperature phase
transition in TlH2AsO4, Phys. Rev.
B 48,
52-57 (1993)
29.
J. Seliger, V. Žagar, 14N nuclear quadrupole resonance study of the structural
phase transition in phenothiazine, J.
Phys.: Condens. Matter 6, 6027-6033 (1994)
30.
R. Blinc, J. Seliger, T. Apih, J. Dolinšek, A. Fuith, W. Schranz, H. Warhanek,
87Rb NMR of the structural phase transition in
RbSCN, Phys. Rev. B 52, 833-840
(1995)
31. R. Blinc. T. Apih, A. Fricelj, J.
Dolinšek, J. Seliger, A. Fuith, W. Schranz,
H. Warhanek, D. C. Ailion, 14N NMR investigation of KSCN,
Europhys. Letters 39,
627-632 (1997)
32. J. Seliger,
V. Žagar, 1H NMR and 14N
NQR study of the ferroelectric phase
transition in (CH3)2NH2H2PO4,
Phys. Rev. B 57, 8160-8165 (1998)
33.
J. Dolinšek, D. Arčon, Hae Jin Kim, J. Seliger, V. Žagar, P. Vanek, J.
Kroupa,
Z. Zikmund, J. Petzelt, Two-time clock NMR
observation of the ferroelectric
transition in the organic compound
cyclohexane-1,1’-diacetic acid, Phys. Rev.
B 57, R8063-R8066 (1998)
34. R. Blinc,
T. Apih, J. Seliger, A. Fuith, W. Schranz, H. Warhanek, Dynamic
symmetry breaking in KSCN: A 39K
and 14N NMR study, Phase Transitions 67,
617-629 (1999)
35.
J. Dolinšek, M. Klanjšek, D. Arčon, Hae Jin Kim, J. Seliger, V. Žagar,
L. F. Kirpichnikova, 1H and 27Al
NMR study of the ferroelectric transition in
dimethylammonium aluminium sulphate
hexahydrate (CH3)2NH2Al(SO4)2.6H2O
Phys. Rev. B 59, 3460-3467 (1999)
36.
J. Seliger, V. Žagar, 2H nuclear quadrupole resonance study of the
Ubbelohde
effect in K(H1-XDX)2PO4,
Phys. Rev. B 59, 13505-13508 (1999)
37.
R. Blinc, A. Gregorovič, B. Zalar, R. Pirc, J. Seliger, W. Kleemann,
S.G. Lushnikov, R. Pankrath, 93Nb
NMR of the random field dominated relaxor
transition in pure and doped SBN, Phys.
Rev. B 64, 134009 (2001)
38.
J. Pirnat, J. Lužnik, J. Seliger, Z. Trontelj, D. Kirin, NQR study of phase
transitions in CH3HgX (X=Cl, Br,
I), Eur. Phys. J. B35, 339-348 (2003)
39. B. Zalar, A. Lebar, J. Seliger, R. Blinc, V. V. Laguta, M. Itoh, NMR study of
disorder in BaTiO3 and SrTiO3, Phys. Rev. B 71, 064107-1-064107-12 (2005)
40. V. V. Laguta, R. Blinc, M. Itoh, J. Seliger, B. Zalar, 87Sr NMR of phase
transitions in SrTi16O3 and SrTi18O3, Phys. Rev. B 72, 214117-1-214117-9
(2005)
41. T Asaji, J Seliger, V Žagar, M Sekiguchi, J Watanabe, K Gotoh, H Ishida,
S Vrtnik , J Dolinsek, Phase transition and temperature dependent electronic
state of an organic ferroelectric, phenazine-chloranilic acid (1:1), J. Phys.
Condens.Matter 19, 226203 (2007)
42. J. Seliger, V. agar
, T. Asaji , A. Konnai , Temperature dependence of
nonequivalent potential wells for pyridinium ion reorientation in
pyridinium
tetrachloroiodate(III), PyHICl4, studied by 1H-14N
nuclear quadrupole double
resonance, Magn. Reson. Chem. 46, 756-760 (2008))
43. J. Seliger, V. Žagar, T. Asaji, 14N
nuclear quadrupole resonance and proton
spin-lattice relaxation study of phase transition in pyridazine
perchlorate, Solid
State Commun. 149, 546-549 (2009) DOI: 10.1016/j.ssc.2009.01.008
44. J. Seliger, V. Žagar, T.
Asaji, Y. Hasegawa, 14N NQR and proton NMR study
of ferroelectric phase transition and proton exchange in organic
ferroelectric
(H2-TPPZ)(Hca)2, Phys. Chem.
Chem. Phys. 12, 3254-3259 (2010),
DOI:10.1039/ B925326B
45. T. Asaji, M. Hoshino, H. Ishida, A.
Konnai, Y. Shinoda, J. Seliger, V. Žagar,
Phase transition and
proton exchange in 1,3-diazinium hydrogen chloranilate
monohydrate,
Hyperfine Interactions 198, 85-91
(2010)
DOI: 10.1007/s10751-010-0205-4
46. J. Seliger, V. Žagar, T. Asaji, K. Gotoh, H. Ishida, 14N nuclear quadrupole
resonance study
of phase transitions and molecular dynamics in hydrogen
bonded organic antiferroelectrics 55DMBP-H2ca and 1,5-NPD-H2ca,
Phys. Chem. Chem. Phys. 13,
9165-9172 (2011) DOI: 10.1039/C0CP02873H
47. J. Seliger, J. Plavec, P. Šket, V. Žagar, R. Blinc, 17O
NQR and 13C NMR
study of
hydrogen-bonded organic ferroelectric croconic acid, Phys. Status
Solidi B 248,2091-2096
(2011), DOI
10.1002/pssb.201046649
48.
J. Seliger, V. Žagar, T. Asaji,
NQR investigation and characterization of
cocrystals
and crystal polymorphs, Hypefine Interactions (2012)
DOI: 10.1007/s10751-012-0665-9
49. T. Asaji , Y. Ito , J. Seliger , V. Žagar , A. Gradisek, T. Apih, Phase transition
and
ring-puckering motion in a metal-organic perovskite
[(CH2)3NH2][Zn(HCOO)3], J. Phys. Chem. A 116, 12422-12428 (2012)
DOI: 10.1021/jp310132a
50. J. Seliger, V. Žagar,
Nuclear quadrupole resonance study of hydrogen bonds
in solid
2-methylbenzimidazole and 5,6-dimethylbenzimidazole, J Phys.
Chem. C 117, 20193-20200 (2013) DOI: 10.1021/jp4071746
51. T. Apih,
V. Žagar, J. Seliger, NMR and NQR Study of
Above-Room-
Temperature Molecular Ferroelectrics Diisopropylammonium Chloride and
Diisopropylammonium
Perchlorate, J. Phys. Chem. C 120,
6180-6189 (2016)
DOI: 10.1021/acs.jpcc.5b12116
52. T. Apih, A. Gregorovič,
V. Žagar, J. Seliger, Nuclear Quadrupole
Resonance
Study of Proton and Deuteron Migration
in Short Strong Hydrogen Bonds
Formed in Molecular Complex 3,5-Dinitrobenzoic Acid–Nicotinic Acid and in
Deuterated 3,5-Pyridinedicarboxylic acid, J. Phys. Chem. C 120, 9992-10000
(2016) DOI:
10.1021/acs.jpcc.6b02639