Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ursula Pachmayr"'
Autor:
Dirk Johrendt, Ursula Pachmayr, Ilya Valmianski, Ali C. Basaran, Christian Urban, Ivan K. Schuller
Publikováno v:
Physical Review B. 97
We present experimental evidence for (a) multiphase superconductivity and (b) coexistence of magnetism and superconductivity in a single structural phase of lithiated iron selenide hydroxide $[(\mathrm{L}{\mathrm{i}}_{1\ensuremath{-}x}\mathrm{F}{\mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aae79df4628e20a45de0da9d2a8a7c35
https://doi.org/10.1103/physrevb.97.024516
https://doi.org/10.1103/physrevb.97.024516
Autor:
Felix Brückner, Hubertus Luetkens, Rajib Sarkar, Fabian Nitsche, Dirk Johrendt, Ursula Pachmayr, Sirko Kamusella, Hans-Henning Klauss
Publikováno v:
Angewandte Chemie. 127:296-301
Die supraleitende Verbindung [(Li1−xFex)OH](Fe1−yLiy)Se (x≈0.2, y≈0.08) wurde durch Hydrothermalsynthese hergestellt und mit Einkristall- und Pulverdiffraktometrie strukturell charakterisiert. Die Struktur besteht aus alternierenden (Li1−xF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d185ad45874311890b02092a1b6cb04
https://doi.org/10.1002/ange.201407756
https://doi.org/10.1002/ange.201407756
Autor:
Felix Brückner, Dirk Johrendt, Rajib Sarkar, Hans-Hennig Klauss, Fabian Nitsche, Hubertus Luetkens, Sirko Kamusella, Ursula Pachmayr
Publikováno v:
Angewandte Chemie International Edition. 54:293-297
Superconducting [(Li(1-x)Fex)OH](Fe(1-y)Liy)Se (x ~ 0.2, y ~ 0.08) was synthesized by hydrothermal methods and structurally characterized by single crystal X-ray diffraction. The crystal structure contains anti-PbO type (Fe(1-y)Liy)Se layers separate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2306b265d8f2de1d6f09ea96ee24081e
https://doi.org/10.1002/anie.201407756
https://doi.org/10.1002/anie.201407756
Autor:
Dirk Johrendt, Ursula Pachmayr
Publikováno v:
Solid State Sciences
The solid solution of antimonide-oxides Ba1−xKxTi2Sb2O (0 ≤ x ≤ 1) has been synthesized by solid-state reactions and characterized by X-ray powder diffraction (CeCr2Si2C-type structure; P4/mmm, Z = 1). The crystal structure consists of Ti2Sb2O-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f27557260639c3afadf419d8f8bb056
Autor:
E. Morenzoni, Anthony A. Amato, Stefan Holenstein, Hans-Henning Klauss, Dirk Johrendt, C. Baines, Sirko Kamusella, Zurab Guguchia, Ursula Pachmayr, Hubertus Luetkens, Rustem Khasanov
We report local probe ($\mu$SR) measurements on the recently discovered tetragonal FeS superconductor which has been predicted to be electronically very similar to superconducting FeSe. Most remarkably, we find that low moment ($10^{-2}-10^{-3}\mu_\m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::186aa3a5b4040ff3b4ce6034506e379d
http://arxiv.org/abs/1602.01987
http://arxiv.org/abs/1602.01987
Tetragonal beta-FeSe obtained by hydrothermal reaction is not superconducting and transforms to a triclinic structure at 60 K unlike superconducting FeSe from solid state synthesis, which becomes orthorhombic at 90 K. In contrast, tetragonal iron sul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7529929eddd7f98f2fe60da814e4e279
http://arxiv.org/abs/1509.04851
http://arxiv.org/abs/1509.04851
Autor:
H. Luetkens, Felix Brueckner, Sirko Kamusella, Ursula Pachmayr, Dirk Johrendt, Hans-Henning Klauss, Rajib Sarkar, Fabian Nitsche
Publikováno v:
ChemInform. 46
(Li0.795Fe0.205)OH (Fe0.915Li0.085)Se is hydrothermally prepared from a mixture of iron metal, selenourea, and LiOH in H2O (autoclave, 150 °C, 8 d) and characterized by powder and single crystal XRD, SEM, 57Fe-Moessbauer spectroscopy, and DFT electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c15f8758fdf3400a409fa0f8d2313c96
https://doi.org/10.1002/chin.201513012
https://doi.org/10.1002/chin.201513012
Autor:
Ursula Pachmayr, Dirk Johrendt
Publikováno v:
Chem. Commun.
[(Li0.8Fe0.2)OH]FeS and the series [(Li0.8Fe0.2)OH]Fe(S1-xSex) (0
Comment: 4 pages, 5 Figures
Comment: 4 pages, 5 Figures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30b44ecba8fda084959787ae7d086f00
http://arxiv.org/abs/1412.6475
http://arxiv.org/abs/1412.6475
Autor:
Ursula, Pachmayr, Fabian, Nitsche, Hubertus, Luetkens, Sirko, Kamusella, Felix, Brückner, Rajib, Sarkar, Hans-Henning, Klauss, Dirk, Johrendt
Publikováno v:
Angewandte Chemie (International ed. in English). 54(1)
Superconducting [(Li1-x Fex )OH](Fe1-y Liy )Se (x≈0.2, y≈0.08) was synthesized by hydrothermal methods and characterized by single-crystal and powder X-ray diffraction. The structure contains alternating layers of anti-PbO type (Fe1-y Liy )Se and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::71321e89b46f5da66770fe60e317b93a
https://pubmed.ncbi.nlm.nih.gov/25293372
https://pubmed.ncbi.nlm.nih.gov/25293372
Autor:
Ursula Pachmayr, Dirk Johrendt
Publikováno v:
ChemInform. 45
The title solid solution is synthesized by solid state reaction of stoichiometric mixtures of Ba, BaO2, K, Sb, and Ti for x ≤ 0.5 and Ba, K, Sb, Ti, and TiO2 for x < 0.5 (Nb tubes, 600 °C, 15 h, sintering at 900 °C, 3 d).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::399c584244cfe9b33f43dc9495ab2cd2
https://doi.org/10.1002/chin.201417010
https://doi.org/10.1002/chin.201417010