55. Tuning the thermoelectric figure of merit in the Dirac semimetal Cd3As2
78th Autumn Meeting of the Physical Society of Japan, 18.09.2023, Sendai, Japan
54. The Role of Valence-Skipping in the Recently Discovered Superconductor In-doped GeTe, (Invited)
Physics Colloquium and Colloquium of the JPS Hokkaido branch, Department of Physics, Hokkaido University, 25.08.2022, Sapporo, Japan
53. Doping-induced enhancement of thermoelectric figure of merit in the Dirac semimetal Cd3As2
77th Spring Meeting of the Physical Society of Japan, 15.03.2022, Online
52. Valence-Skipping Indium and Its Role in the New Superconductor (Ge,In)Te, (Invited)
Institute for Solid State and Materials Physics, Technical University Dresden, 02.11.2021, Online
51. About the Enhancement of Superconductivity in InTe
76th Spring Meeting of the Physical Society of Japan, 15.03.2021, Online
50. Enhanced superconductivity in the polar IV - VI semiconductor GeTe by doping valence-skipping In, (Invited)
Materials Research Meeting 2019, 12.12.2019, Yokohama, Japan
49. Superconductivity in InTe revisited
74th Spring Meeting of the Physical Society of Japan, 14.03.2019, Fukuoka, Japan
48. Band-filling-controlled superconductor-insulator-superconductor transition in doped GeTe
73rd Autumn Meeting of the Physical Society of Japan, 10.09.2018, Kyotanabe, Japan
47. Doping-Induced Enhancement of the Superconducting Tc in the Topological Crystalline Insulator SnTe, (Invited)
12th International Conference on Materials and Mechanisms of Superconductivity (M2S) and High-Temperature Superconductors, 23.08.2018, Beijing, China
46. Development of a diluted magnetic semiconductor with enhanced ferromagnetic transition temperature and magnetic phase change memory function,
RIKEN-CEMS Award Lectures, 25.04.2018, Wako, Japan
45. Enhancement of the Superconducting Tc in Tin Telluride by Doping Valence-Skipping Indium, (Invited)
CEMS-Tsinghua-APW Joint Workshop, 08.12.2017, Wako, Japan
44. GeTe: A well-known material which yet allows new discoveries by doping, synthesis conditions,
The 6th CEMS Topical Research Camp, 20.10.2017, Fujiyoshida, Japan
43. Enhanced superconductivity in the polar semiconductor GeTe induced by doping,
72nd Autumn Meeting of the Physical Society of Japan, 21.09.2017, Morioka, Japan
42. Doping into the polar semiconductor GeTe: From nanoscale magnetic phase separation to superconductivity, (Invited)
Seminar of the Collaborative Research Center 1238, Institute of Physics II, University of Cologne, 26.07.2017, Cologne, Germany
41. Nanoscale Phase Separation in the Doped Polar Semiconductor (Ge,Mn)Te, (Invited)
Seminar Quantum Materials Lab, Kyoto University, 21.03.2017, Kyoto, Japan
40. Correlation of Tc and nanoscale Mn clustering in the diluted magnetic semiconductor (Ge,Mn)Te,
72nd Spring Meeting of the Physical Society of Japan, 18.03.2017, Toyonaka, Japan
39. Charge-carrier control by codoping into the polar diluted magnetic semiconductor (Ge,Mn)Te,
71st Autumn Meeting of the Physical Society of Japan, 15.09.2016, Kanazawa, Japan
38. Doping into the Polar Semiconductor GeTe: From Ferromagnetism to Superconductivity
The 4th CEMS Topical Research Camp, 13.05.2016, Hakone, Japan
37. Magnetic Phase Diagram of the Doped Polar Semiconductor GeTe, (Invited),
Indo-Japan Conference on Emergent Phenomena in Transition-Metal Compounds and Related Materials, 28.03.2016, Indian Institute of Science, Bengaluru (Bangalore), India
36. Origin of the Enhancement of the Ferromagnetic Tc in Ge1-xMnxTe by Structural Analysis,
71st Spring Meeting of the Physical Society of Japan, 21.03.2016, Sendai, Japan
35. Enhanced Ferromagnetism due to Nanoscale Phase Separation in the Polar Ferromagnet (Ge,Mn)Te,
The 3rd CEMS Topical Research Camp, 31.10.2015, Kinugawa, Japan
34. Magnetic Phase Diagram of the Polar Semiconductor Ge1-xMnxTe,
70th Autumn Meeting of the Physical Society of Japan, 18.09.2015, Suita, Japan
33. Competing Magnetic Phases in the Doped Magnetic Semiconductor GeTe, (Invited)
Seminar of the research initiative "Quantum Matter and Materials", Institute of Physics II, University of Cologne, 15.07.2015, Cologne, Germany
32. Different Magnetic Phases in the Doped Polar Semiconductor GeTe, (Invited)
Seminar, Institute of Condensed Matter Physics, EPF Lausanne, 03.07.2015, Lausanne, Switzerland
31. Competition of the Magnetic Phases in the Doped Polar Semiconductor GeTe, (Invited)
Seminar, Institute for Theoretical Physics, ETH Zürich (Hoenggerberg), 02.07.2015, Zürich, Switzerland
30. Doping-Induced Ferromagnetism in the Polar Semiconductor GeTe,
The 2nd CEMS Topical Research Camp, 09.10.2014, Minakami, Japan
29. Doping Effect on the Thermoelectric Properties of WSe1.6Te0.4,
69th Autumn Meeting of the Physical Society of Japan, 07.09.2014, Kasugai, Japan
28. Thermoelectric Properties of W1-xTaxSe1.6Te0.4,
The 1st CEMS Topical Research Camp, 17.07.2014, Atami, Japan
27. Possible Topological Superconductivity in CuxBi2Se3 and Sn1-xInxTe, (Invited)
The 3rd Super-PIRE REIMEI Workshop on Frontiers of Condensed Matter Physics, Intitute of Physics, 18.03.2014, Beijing, China
26. Thermodynamical Approach to the Possible Topological Superconductor CuxBi2Se3,
68th Spring Meeting of the Physical Society of Japan, 29.03.2013, Hiroshima, Japan
25. The Superconducting Phase in CuxBi2Se3, (Invited)
Japan-Finland March Meeting for the future in thermoelectrics, Nagoya University, 14.03.2012, Nagoya, Japan
24. Topological Superconductivity in CuxBi2Se3, (Invited)
Seminar of the Collaborative Research Center SFB 608, Institute of Physics II, University of Cologne, 04.01.2012, Cologne, Germany
23. Thermodynamic Properties of the Superconducting Phase in CuxBi2Se3,
66th Autumn Meeting of the Physical Society of Japan, 23.09.2011, Toyama, Japan
22. Specific Heat of the noncentrosymmetric superconductors Li2(Pd1-xPtx)3B (x = 1, 0.9, and 0.84), (Invited)
Symposium on ''Physics and Functions of Electronic Systems with Broken Symmetries'' and ''Materials Study by Synchrotron Light Source'', Okayama University, 25.03.2010, Okayama, Japan
21. Superconductivity -- general remarks and what we are interested in --, (Invited)
Global COE ''The Next Generation of Physics, Spun from Universality and Emergence'' Symposium, Kyoto University, 25.02.2010, Kyoto, Japan
20. Superconductivity in the wide-gapped semiconductors diamond, silicon, and silicon carbide, (Invited)
Seminar, Institute of Industrial and Scientific Research, Osaka University, 08.01.2010, Ibaraki, Japan
19. Superconductivity in heavily charge carrier-doped diamond, silicon, and silicon carbide, (Invited)
Seminar, Leibniz Institute for Solid State and Materials Research Dresden, 18.12.2009, Dresden, Germany
18. Specific-heat of aluminum-doped superconducting silicon carbide SiC:Al,
64th Autumn Meeting of the Physical Society of Japan, 28.09.2009, Kumamoto, Japan
17. Superconductivity in heavily charge carrier-doped silicon carbide, (Invited)
Seminar, Institute for Theoretical Physics, ETH Zürich (Hoenggerberg), 03.08.2009, Zürich, Switzerland
16. Superconductivity in silicon carbide with different dopands, (Invited)
Seminar of the Collaborative Research Center SFB 608, Institute of Physics II, University of Cologne, 22.07.2009, Cologne, Germany
15. About Germany,
Program for InterCultural Nexus In Kyoto (PICNIK): Lecture at the Oo-eda Junior High School, 09.07.2009, Kyoto, Japan
14. Specific-heat of boron-doped superconducting silicon carbide down to dilution-refrigerator temperatures,
64th Spring Meeting of the Physical Society of Japan, 30.03.2009, Tokyo, Japan
13. About Germany, me, and physics
JSPS Science Dialogue Program: Lecture at the Kitamiyazaki High School, 10.12.2008, Miyazaki, Japan
12. Specific-heat study of doped superconducting silicon carbide with different dopands,
63rd Autumn Meeting of the Physical Society of Japan, 20.09.2008, Morioka, Japan
11. Superconductivity in heavily charge carrier-doped diamond, silicon, and silicon carbide, (Invited)
Seminar of the Collaborative Research Center SFB 608, Institute of Physics II, University of Cologne, 15.08.2008, Cologne, Germany
10. Superconductivity in the wide-gap semiconductor silicon carbide,
International Workshop on Superconductivity in Diamond and Related Materials IWSDRM2008, 09.07.2008, Tsukuba, Japan
9. Superconductivity in boron-doped silicon carbide,
CIFAR Quantum Materials Summer School, 06.05.2008, Hamilton, Ontario, Canada
8. Superconductivity in diamond-related compounds or: About "Dirty Diamond", (Invited)
Seminar, Institute of Physics II, University of Cologne, 09.01.2008, Cologne, Germany
7. Specific-Heat Study of a new Diamond-based Type-I Superconductor,
62nd Annual Meeting of the Physical Society of Japan, 24.09.2007, Sapporo, Japan
6. A comparative AC Susceptibility Study of Ag6O8AgNO3 and Sr2RuO4,
Workshop on Physics of New Quantum Phases in Super-Clean Materials, 14. - 16.07.2007, Koyasan, Japan
5. Structural Aspects of Metamagnetism in Ca2-xSrxRuO4: Field Tuning of Orbital Occupation,
61st Autumn Meeting of the Physical Society of Japan, 24.09.2006, Chiba, Japan
4. Spin-State Transition, Magnetic Order, and Metal-Insulator Transitions in 1-1-3 cobaltates,
Seminar ESRF Grenoble, 11.10.2005, Grenoble, France, (Invited)
3. Thermal Conductivity, Thermopower, and Figure of Merit of La1-xSrxCoO3,
Spring Meeting of the German Physical Society, 06.03.2005, Berlin, Germany
2. Influence of global and local distortions on magnetism and conductivity of La1-xMxCoO3 (M = Ca, Sr, Ba),
Spring Meeting of the German Physical Society, 11.03.2004, Regensburg, Germany
1. Spin-State Transition in LaCoO3
Spring Meeting of the German Physical Society, 13.03.2002, Regensburg, Germany