Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Ruff, E A"'
Publikováno v:
Phys. Rev. B 96, 144418 (2017)
We report on THz time-domain spectroscopy on multiferroic GeV4S8, which undergoes orbital ordering at a Jahn-Teller transition at 30.5 K and exhibits antiferromagnetic order below 14.6 K. The THz experiments are complemented by dielectric experiments
Externí odkaz:
http://arxiv.org/abs/1705.07055
Autor:
Ruff, E., Butykai, A., Geirhos, K., Widmann, S., Tsurkan, V., Stefanet, E., Kézsmárki, I., Loidl, A., Lunkenheimer, P.
Publikováno v:
Phys. Rev. B 96 (2017) 165119
In the present work, we provide results from specific heat, magnetic susceptibility, dielectric constant, ac conductivity, and electrical polarization measurements performed on the lacunar spinel GaV4Se8. With decreasing temperature, we observe a tra
Externí odkaz:
http://arxiv.org/abs/1701.06472
Autor:
Widmann, S., Günther, A., Ruff, E., Tsurkan, V., von Nidda, H. -A. Krug, Lunkenheimer, P., Loidl, A.
Publikováno v:
Phys. Rev. B 94 (2016) 214421
The lacunar spinel GeV4S8 undergoes orbital and ferroelectric ordering at the Jahn-Teller transition around 30 K and exhibits antiferromagnetic order below about 14 K. In addition to this orbitally driven ferroelectricity, lacunar spinels are an inte
Externí odkaz:
http://arxiv.org/abs/1610.05244
Publikováno v:
Phys. Rev. Lett. 118, 036803 (2017)
We deduce the intrinsic conductivity properties of the ferroelectric domain walls around the topologically protected domain vortex cores in multiferroic YMnO3. This is achieved by performing a careful equivalent-circuit analysis of dielectric spectra
Externí odkaz:
http://arxiv.org/abs/1607.03126
Autor:
Widmann, S., Ruff, E., Günther, A., von Nidda, H. -A. Krug, Lunkenheimer, P., Tsurkan, V., Bordács, S., Kézsmárki, I., Loidl, A.
Publikováno v:
Phil. Mag. 97 (2017) 3428
The lacunar spinel GaV4S8 exhibits orbital ordering at 44 K and shows a complex magnetic phase diagram below 12.7 K, which includes ferromagnetic and cycloidal spin order. At low but finite external magnetic fields, N\'eel-type skyrmions are formed i
Externí odkaz:
http://arxiv.org/abs/1606.04511
Publikováno v:
Phys. Rev. Lett. 115, 207601 (2015)
We present a dielectric spectroscopy study of the polar dynamics linked to the orbitally driven ferroelectric transition in the skyrmion host GaV4S8. By combining THz and MHz-GHz spectroscopy techniques, we succeed in detecting the relaxational dynam
Externí odkaz:
http://arxiv.org/abs/1509.02411
Publikováno v:
Scientific Reports 5 (2015) 15025
Insulating helimagnetic Cu2OSeO3 shows sizeable magnetoelectric effects in its skyrmion phase. Using magnetization measurements, magneto-current analysis and dielectric spectroscopy, we provide a thorough investigation of magnetoelectric coupling, po
Externí odkaz:
http://arxiv.org/abs/1504.03918
Publikováno v:
Science Advances 1 (2015) e1500916
Skyrmions are whirl like topological spin objects with high potential for future magnetic data storage. It is a fundamental question, relevant for both basic research and application, if a ferroelectric (FE) polarization can be associated with their
Externí odkaz:
http://arxiv.org/abs/1504.00309
Autor:
Sippel, P., Krohns, S., Thoms, E., Ruff, E., Riegg, S., Kirchhain, H., Schrettle, F., Reller, A., Lunkenheimer, P., Loidl, A.
Publikováno v:
Eur. Phys. J. B 85 (2012) 235
Three charge-ordering lanthanum nickelates La2-xAxNiO4, substituted with specific amounts of A = Sr, Ca, and Ba to achieve commensurate charge order, are investigated using broadband dielectric spectroscopy up to GHz frequencies. The transition tempe
Externí odkaz:
http://arxiv.org/abs/1203.0414
Publikováno v:
GMS Ophthalmology Cases, Vol 10, p Doc39 (2020)
GMS Ophthalmology Cases
GMS Ophthalmology Cases; VOL: 10; DOC39 /20200826/
GMS Ophthalmology Cases
GMS Ophthalmology Cases; VOL: 10; DOC39 /20200826/
A 67-year-old man was referred for iris color change. He was noted to have narrow angles with atrophic iris appearance and visually significant cataracts. The iris findings were consistent with iridoschisis. The patient was recommended to have catara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abbf77f55798dc31e9e9cb67fb337ad8
http://www.egms.de/static/en/journals/oc/2020-10/oc000166.shtml
http://www.egms.de/static/en/journals/oc/2020-10/oc000166.shtml
