Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Magdalena Huefner"'
Autor:
Darrell G. Schlom, Eugene Freeman, Nikhil Shukla, Magdalena Huefner, Ram Krishna Ghosh, Hanjong Paik, Suman Datta
Publikováno v:
Nano Letters. 14:6115-6120
We locally investigate the electronic transport through individual tunnel junctions containing a 10 nm thin film of vanadium dioxide (VO2) across its thermally induced phase transition. The insulator-to-metal phase transition in the VO2 film collapse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c317d3859e13c3b2d45336de2732d138
https://doi.org/10.1021/nl502065b
https://doi.org/10.1021/nl502065b
Autor:
Yigal Meir, Thomas Ihn, S. Schnez, Christoph Stampfer, Klaus Ensslin, Johannes Güttinger, S. Dröscher, Magdalena Huefner, Helena S. Knowles
Publikováno v:
Solid State Communications. 152:1306-1310
We report two experiments on graphene nanostructures. The first was performed on a graphene nanoribbon, where the nature of electronic transport was investigated in detail. Electrons or holes are found to localize in pockets of the potential along th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8266fbba90118a3b8dc7dbe7b92c7ae
https://doi.org/10.1016/j.ssc.2012.04.043
https://doi.org/10.1016/j.ssc.2012.04.043
Publikováno v:
Journal of Microelectromechanical Systems. 19:1088-1097
In this paper, we report on the integration technique and fabrication of a scanning probe interrogating the location of charges and their tracks inside quantum devices. Our unique approach is to pattern the charged sensor into a high topography micro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76727a806caacd6578db379b5eae7df8
https://doi.org/10.1109/jmems.2010.2067198
https://doi.org/10.1109/jmems.2010.2067198
Autor:
Magdalena Huefner, Ophir M. Auslaender, Paul C. Canfield, Stella Kim, Cun Ye, J. Zhang, Jeehoon Kim, Ruslan Prozorov, Jennifer Hoffman
We use a magnetic force microscope (MFM) to investigate single vortex pinning and penetration depth in NdFeAsO$_{1-x}$F$_x$, one of the highest-$T_c$ iron-based superconductors. In fields up to 20 Gauss, we observe a disordered vortex arrangement, im
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1283b5de5f31fbefb3ab885432294dc
http://arxiv.org/abs/1504.04045
http://arxiv.org/abs/1504.04045
Autor:
Thomas Ihn, Magdalena Huefner, Bruno Kueng, Klaus Ensslin, Matthias Reinwald, S. Schnez, Werner Wegscheider
Publikováno v:
Physical Review B. 83
The metallic tip of a scanning force microscope operated at $300\text{}\mathrm{m}\mathrm{K}$ is used to locally induce a potential in a fully controllable double quantum dot defined via local anodic oxidation in a GaAs/AlGaAs heterostructure. Using s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9514da8201b5f4918d7fe3134b09bae
https://doi.org/10.1103/physrevb.83.235326
https://doi.org/10.1103/physrevb.83.235326
Autor:
Cecile Bacca, Magdalena Huefner, Stefan Egle, Hans-Fridtjof Pernau, Ulrich Nowak, Denise Hinzke, Elke Scheer
We present a comprehensive study of the conductance behavior of atomic-size contacts made of ferromagnetic metals (Co) or noble metals (Au) with ferromagnetic electrodes (Co). In order to separate the influence of the large electrodes from the influe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaaff64414ee96c2763bdb5bd14e8659
Autor:
F. Molitor, Christoph Stampfer, Klaus Ensslin, Magdalena Huefner, Alessandro Pioda, Thomas Ihn, A. Jacobsen
We investigate the magnetoresistance of a side-gated ring structure etched out of single-layer graphene. We observe Aharonov-Bohm oscillations with about 5% visibility. We are able to change the relative phases of the wave functions in the interferin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0193c0fedef20af6270b935e8c5d4e3
Autor:
J.E. Hoffman, Cun Ye, Jeehoon Kim, Martin Zech, Magdalena Huefner, Martin Ashby Blood-Forsythe, Adam Pivonka
Publikováno v:
Applied Physics Letters. 101:173110
We introduce a versatile method to control the quality factor Q of a conducting cantilever in an atomic force microscope (AFM) via capacitive coupling to the local environment. Using this method, Q may be reversibly tuned to within ∼10% of any desi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::118aef739e4083b14580641a729bed22
https://doi.org/10.1063/1.4764025
https://doi.org/10.1063/1.4764025
Autor:
B Kueng, Thomas Ihn, Werner Wegscheider, Klaus Ensslin, S. Schnez, Matthias Reinwald, Magdalena Huefner
Publikováno v:
Nanotechnology. 22:295306
The functionality of nanostructures fabricated via local anodic oxidation is limited by undesired leakage currents. We use low-temperature scanning gate microscopy to pin down the spatial position where leakage currents are most likely to occur. We s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05e6e9b270ed73a5194bbfa4ea7420f3
https://doi.org/10.1088/0957-4484/22/29/295306
https://doi.org/10.1088/0957-4484/22/29/295306
Autor:
Thomas Ihn, Michael Hilke, K. Suter, Klaus Ensslin, Christian Albrecht May, Magdalena Huefner, S. Kičin, N. F. de Rooij, Urs Staufer
Publikováno v:
Physical Review B, 79 (13), 2009
We present measurements on a superconducting single-electron transistor (SET) in which the metallic tip of a low-temperature scanning force microscope is used as a movable gate. We characterize the SET through charge stability diagram measurements an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81549222e3131a4133c0d6030c3a7891
https://infoscience.epfl.ch/record/143636
https://infoscience.epfl.ch/record/143636