Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Frank Volmer"'
Autor:
Frank Volmer, Manfred Ersfeld, Paulo E. Faria Junior, Lutz Waldecker, Bharti Parashar, Lars Rathmann, Sudipta Dubey, Iulia Cojocariu, Vitaliy Feyer, Kenji Watanabe, Takashi Taniguchi, Claus M. Schneider, Lukasz Plucinski, Christoph Stampfer, Jaroslav Fabian, Bernd Beschoten
Publikováno v:
npj 2D Materials and Applications, Vol 7, Iss 1, Pp 1-10 (2023)
Abstract Transition metal dichalcogenides (TMDs) have attracted much attention in the fields of valley- and spintronics due to their property of forming valley-polarized excitons when illuminated by circularly polarized light. In TMD-heterostructures
Externí odkaz:
https://doaj.org/article/70ebfad6a6244eab84738fd8b660efa0
Autor:
Timo Bisswanger, Zachary Winter, Anne Schmidt, Frank Volmer, Kenji Watanabe, Takashi Taniguchi, Christoph Stampfer, Bernd Beschoten
Publikováno v:
Nano Letters. 22:4949-4955
We present inverted spin-valves fabricated from CVD-grown bilayer graphene (BLG) that show more than a doubling in device performance at room temperature compared to state-of-the art bilayer graphene spin-valves. This is made possible by a PDMS dropl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da08de27098c9ecbd22290eb73250491
https://doi.org/10.1021/acs.nanolett.2c01119
https://doi.org/10.1021/acs.nanolett.2c01119
Publikováno v:
Physical Review Applied. 18
To conduct spin-sensitive transport measurements, a non-local device geometry is often used to avoid spurious voltages that are caused by the flow of charges. However, in the vast majority of reported non-local spin valve, Hanle spin precession, or s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3430f499b821edfc89188bff1ec8c963
https://doi.org/10.1103/physrevapplied.18.014028
https://doi.org/10.1103/physrevapplied.18.014028
Autor:
Lars R. Schreiber, Inga Seidler, Christoph Stampfer, Bernd Beschoten, Frank Volmer, Jhih-Sian Tu, Timo Bisswanger
Publikováno v:
Journal of physics / D 54(22), 225304 (2021). doi:10.1088/1361-6463/abe89b
Journal of physics / D 54(22), 225304-(2021). doi:10.1088/1361-6463/abe89b
Journal of physics / D 54(22), 225304-(2021). doi:10.1088/1361-6463/abe89b
We discuss how the emission of electrons and ions during electron-beam-induced physical vapor deposition can cause problems in micro- and nanofabrication processes. After giving a short overview of different types of radiation emitted from an electro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51674acb9314cb3c7a6e7dca3a81d9c7
http://arxiv.org/abs/2010.06459
http://arxiv.org/abs/2010.06459
Autor:
Manfred, Ersfeld, Frank, Volmer, Lars, Rathmann, Luca, Kotewitz, Maximilian, Heithoff, Mark, Lohmann, Bowen, Yang, Kenji, Watanabe, Takashi, Taniguchi, Ludwig, Bartels, Jing, Shi, Christoph, Stampfer, Bernd, Beschoten
Publikováno v:
Nano letters. 20(5)
We report on nanosecond-long, gate-dependent valley lifetimes of free charge carriers in monolayer WSe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::fc6bd889f12981e25f94fa0343d20e80
https://pubmed.ncbi.nlm.nih.gov/32202802
https://pubmed.ncbi.nlm.nih.gov/32202802
Autor:
Frank Volmer, Takashi Taniguchi, Kenji Watanabe, Lars Rathmann, Christoph Stampfer, Luca Kotewitz, Ludwig Bartels, Jing Shi, Maximilian Heithoff, Mark Lohmann, Bowen Yang, M. Ersfeld, Bernd Beschoten
Publikováno v:
Nano letters 20(5), 3147-3154 (2020). doi:10.1021/acs.nanolett.9b05138
We report on nanosecond long, gate-dependent valley lifetimes of free charge carriers in monolayer WSe$_2$, unambiguously identified by the combination of time-resolved Kerr rotation and electrical transport measurements. While the valley polarizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44af73507eefb409bd1b39733e135719
https://hdl.handle.net/2128/24935
https://hdl.handle.net/2128/24935
Autor:
Maximilian Heithoff, Mark Lohmann, Ludwig Bartels, Kenji Watanabe, Jing Shi, Luca Kotewitz, Bowen Yang, M. Ersfeld, Bernd Beschoten, Takashi Taniguchi, Lars Rathmann, Christoph Stampfer, Frank Volmer
Publikováno v:
Spintronics XIII
One of the main tasks in the investigation of 2-dimensional transition metal dichalcogenides is the determination of valley lifetimes. In this work, we combine time-resolved Kerr rotation with electrical transport measurements to explore the gate-dep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0653000aca2164aae69be4961f1763d
Autor:
Jing Shi, Luca Kotewitz, Kenji Watanabe, Bowen Yang, M. Ersfeld, Frank Volmer, Bernd Beschoten, Mark Lohmann, Takashi Taniguchi, Lars Rathmann, Christoph Stampfer, Maximilian Heithoff, Ludwig Bartels
Publikováno v:
Physica status solidi / Rapid research letters 14(10), 2000298 (2020). doi:10.1002/pssr.202000298 special issue: "Electronic Properties of Novel Materials / Janina Maultzsch, Stephanie Reich, Andreas Hirsch, Christoph Stampfer, Christian Thomsen, Antonio Setaro"
34. Winterschool on Electronic Properties of Novel Materials, IWEPNM 2020, Kirchberg/Tirol, Austria, 2020-03-07-2021-03-14
physica status solidi (RRL) – Rapid Research Letters
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, vol 14, iss 10
physica status solidi (RRL)-Rapid Research Letters, vol 14, iss 10
34. Winterschool on Electronic Properties of Novel Materials, IWEPNM 2020, Kirchberg/Tirol, Austria, 2020-03-07-2021-03-14
physica status solidi (RRL) – Rapid Research Letters
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, vol 14, iss 10
physica status solidi (RRL)-Rapid Research Letters, vol 14, iss 10
34th Winterschool on Electronic Properties of Novel Materials, IWEPNM 2020, Kirchberg/Tirol, Austria, 7 Mar 2020 - 14 Mar 2021; Physica status solidi / Rapid research letters 14(10), 2000298 (2020). doi:10.1002/pssr.202000298 special issue: "Electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7fca1a4c1a5e2f7cc2f470c7260b95c
Autor:
Manfred, Ersfeld, Frank, Volmer, Pedro Miguel M C, de Melo, Robin, de Winter, Maximilian, Heithoff, Zeila, Zanolli, Christoph, Stampfer, Matthieu J, Verstraete, Bernd, Beschoten
Publikováno v:
Nano letters. 19(6)
We present time-resolved Kerr rotation measurements, showing spin lifetimes of over 100 ns at room temperature in monolayer MoSe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d87debcb84dc7a54d422f75038f86df5
https://pubmed.ncbi.nlm.nih.gov/31063385
https://pubmed.ncbi.nlm.nih.gov/31063385
Publikováno v:
Synthetic Metals. 210:42-55
In this review we discuss spin and charge transport properties in graphene-based single-layer and few-layer spin-valve devices. We give an overview of challenges and recent advances in the field of device fabrication and discuss two of our fabricatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22d60932c591e7b64781773794e6d4db
https://doi.org/10.1016/j.synthmet.2015.07.007
https://doi.org/10.1016/j.synthmet.2015.07.007