|2.-5. Juni 2020||nature Konferenz: Microrobots & nanorobots for biotechnology, AGUV Akademie Dresden|
|15.-20. März 2020||DPG-Frühjahrstagung, Dresden|
|10./11. Feb. 2020||Sächsischer Forschungs- und Vernetzungs-workshop »Thermoelektrische Anwendungen in der Industrie«|
Dorint Parkhotel Meißen
|23.-24. Jan. 2020||BIOREMIA Kick-off Meeting , IFW Dresden|
|Sept. 25-27, 2019||Annual IFW Summer School for PhD students in Szczecin, Polan|
Sept. 15-20, 2019
ECASIA19: 18th European Conference on Applications of Surface and Interface Analysis
Sept. 13-20, 2019
|Summer School Spectroelectrochemistry, IFW Dresden|
|May 20/21, 2019||International Workshop "Topology meets materials – Weizmann meets Dresden", IFW Dresden|
|March 28/29, 2019|
|March 28/29, 2019||Joint workshop of BAM Berlin and IFW Dresden, IFW Dresden|
Dec. 4-5. 2018
|UKRATOP Workshop, IFW Dresden|
Oct. 1 – 2, 2018
SAW Symposium, Westin Bellevue Dresden, Dresden, Germany
|Aug. 28-30, 2018||Spin , waves & interactions 2018, Greifswald, Germany|
April 8- 11, 2018
667. WE-Heraeus-Seminar on System-oriented approach to thermoelectrics: Materials – Interfaces – Devices in Bad Honnef, Germany
March 11-16, 2018
Joint Conference of the Condensed Matter Divisions of the DPG and EPS,
Feb. 1, 2018
Workshop of the DFG Priority Programme 1458 “High Temperature Superconductivity in Iron Pnictides“, IFW Dresden
Jan. 29-31, 2018
EPSQMat 2018: International Workshop on Electron and photon spectroscopies of quantum materials: status and perspectives, IFW Dresden
|IFW Zoom Seminar||11:00|
|Ort||Join Zoom Seminar: to be announced|
|Thema||CANCELLED: Solid state single crystal growth of three-dimensional faceted LaOFeAs crystals
Soon after the discovery of iron-based superconductors, single crystals of various pnictide families were successfully grown using self-flux growth. However, LaOFeAs single crystals are hard to be obtained via flux growth -. Crystals could be successfully synthesized using high-pressure-high- temperature synthesis , but this method is limited to rather small crystals and also did not lead to a reasonable growth along the c direction, so far. This lack of large, well-faceted and 3-dimensional crystals is currently hindering their detailed investigation.
Solid state single crystal growth (SSCG) is a crystal growth technique where crystals are grown from a polycrystalline matrix. Here, we present single crystals of the iron pnictide LaOFeAs grown via SSCG. The size of the as-grown crystals are up to 2x3x0.4 mm3. Typical for this method, but very uncommon for crystals of the pnictide superconductors and especially for the oxypnictides, the crystals show pronounced facets and considerable growth in c direction . Current research aims to further understand details of the growth mechanism and to explore growth of crystals with different types of doping using the SSCG method. These crystals are subject of several studies to shed light on the physics of their properties (see, e.g., ).
1. J.-Q. Yan, et al., Appl. Phys. Lett. 95, 222504 (2009).
2. A. Jesche, et al. Phys. Rev. B 86, 134511 (2012).
3. N. D. Zhigadlo, et al., Phys. Rev. B 86, 214509 (2012).
4. R. Kappenberger, et al., J. Cryst. Growth 483, 9 (2018).
5. L. Wang, et al., J. Magn. Magn Mater. 482, 50 (2019).
This work has been supported by Deutsche Forschungsgemeinschaft DFG. The authors thank R. Wachtel, D. Meiler, J. Werner, L. Giebeler, S. Müller-Litvanyi, C. Wuttke and S. Gass (all IFW Dresden) for support and J. M. Ok (POSTECH) for valuable discussions.
|Eingeladen von||Prof. Dr. Jeroen van den Brink|
|Ort||Hörsaal, IFW Dresden A1E.10|
|Thema||Long-range magnetic order in the S=1/2 triangular lattice antiferromagnet KCeS2|
|Eingeladen von||Prof. Dr. Bernd Büchner|
The Dresden Science Calendar supports interdisciplinary research in Dresden by collecting, structuring and distributing announcements of upcoming scientific talks via a unified internet platform. It allows anyone to browse all seminar announcements and to subscribe to filtered information.
To the Dresden Science Calendar