Zobrazeno 1 - 10
of 126
pro vyhledávání: '"H. Warhanek"'
Publikováno v:
Phase Transitions. 67:617-629
The 39K ½ → −½ NMR angular rotation patterns in KSCN show no symmetry change on going through Tc . We have directly determined with 14N NMR the SCN head-tail flipping rate. The results show that the absence of a symmetry change in 39K angular r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08fd6f98763796b0706ab7529b15e5cf
https://doi.org/10.1080/01411599908224499
https://doi.org/10.1080/01411599908224499
Publikováno v:
physica status solidi (a). 168:397-401
In this paper we present results of investigations of the phase boundary dynamic and domain structure in ferroelastic K 2 Cd 2 (SO 4 ) 3 . The orientation of the phase boundary is determined as (100) and can be explained on the basis of Boulesteix ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72844dcf60f8db85c7e1e0d2c01f9d34
https://doi.org/10.1002/(sici)1521-396x(199808)168:2<397::aid-pssa397>3.0.co
https://doi.org/10.1002/(sici)1521-396x(199808)168:2<397::aid-pssa397>3.0.co
Publikováno v:
Solid State Communications. 104:455-458
The temperature dependence of spontaneous strain is investigated in the ferroelastic lock-in phase of [N(CH 3 ) 4 ] 2 CuCl 4 crystals by thermal mechanical analysis. The critical index of the order parameter modulus is found to be β = 0.33. Consider
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e61d967d8e13af3de8e554e98add3827
https://doi.org/10.1016/s0038-1098(97)00366-9
https://doi.org/10.1016/s0038-1098(97)00366-9
Autor:
A. Fricelj, David C. Ailion, Wilfried Schranz, Tomaž Apih, Janez Seliger, Robert Blinc, Armin Fuith, Janez Dolinšek, H. Warhanek
Publikováno v:
Europhysics Letters (EPL). 39:627-632
We have directly determined with 14N NMR the SCN head-tail flipping rate in KSCN on going through the order-disorder phase transition at Tc. The results can be explained in terms of an asymmetric double-well potential for the SCN reorientations below
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e0819162c0d7e15e760a071ff320027
https://doi.org/10.1209/epl/i1997-00405-1
https://doi.org/10.1209/epl/i1997-00405-1
Publikováno v:
Journal of Physics: Condensed Matter. 9:723-733
The temperature- and frequency-dependent dielectric susceptibility parallel to the ferroelectric axis of crystals was studied in the ferroelectric phase. The dispersion corresponding to a critical slowing down of the thermal dipole relaxation was obs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7f49a99decaecccd594a812046f22be
https://doi.org/10.1088/0953-8984/9/3/012
https://doi.org/10.1088/0953-8984/9/3/012
Publikováno v:
Ferroelectrics. 190:89-94
The domain structure of the ferroelastic crystal K2Cd2(SO4)3 was observed and investigated in detail, in different temperature regions below Tc using a polarizing microscope. It is shown that the appearence of a domain structure depends on crystal th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86e0dfa744ac7d64513510047b11ce8d
https://doi.org/10.1080/00150199708014098
https://doi.org/10.1080/00150199708014098
Publikováno v:
Scopus-Elsevier
Benzil (C6H5—CO)2 exhibits an order - disorder phase transition at Tc = 83.5 K, which leads the crystal from trigonal (P3121, Z = 3) high temperature phase to a monoclinic (P21, Z = 6) low temperature phase. We present the detailed low frequency (1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44a171f9f248ef47bdfd60210fa9785d
https://doi.org/10.1080/00150199708014099
https://doi.org/10.1080/00150199708014099
Publikováno v:
Ferroelectrics. 190:43-49
We have investigated the temperature and frequency dependence of the KDP-isomorphous KD2AsO4 (Curie-temperature TC =162.5 K) in the polar phase by means of dielectric measurements. In the high temperature paraphase the dielectric susceptibility ϵ33(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebc5771e5498c896629bc69530beec40
https://doi.org/10.1080/00150199708014091
https://doi.org/10.1080/00150199708014091
Publikováno v:
Physica Status Solidi (a). 155:95-113
Dielectric and dilatometric investigations of (NH2(CH3)2)2CoCl4 crystals were performed in the temperature range 290 to 430 K. Anomalies characteristic of phase transitions have been found at the temperatures 419, 380, 353, and 313 K (in a heating ru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b2f8746287a9be7feafeb51cbfde563
https://doi.org/10.1002/pssa.2211550109
https://doi.org/10.1002/pssa.2211550109
Publikováno v:
Physical Review B. 53:8323-8328
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0588b23c1b897e0359eca4b486516011
https://doi.org/10.1103/physrevb.53.8323
https://doi.org/10.1103/physrevb.53.8323