Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Luescher, Silvia"'
Autor:
Child, Tim, Sheekey, Owen, Lüscher, Silvia, Fallahi, Saeed, Gardner, Geoffrey C., Manfra, Michael, Folk, Joshua
Previous measurements utilizing Maxwell relations to measure change in entropy, $S$, demonstrated remarkable accuracy of measuring the spin-1/2 entropy of electrons in a weakly coupled quantum dot. However, these previous measurements relied upon pri
Externí odkaz:
http://arxiv.org/abs/2110.14172
Autor:
Child, Tim, Sheekey, Owen, Lüscher, Silvia, Fallahi, Saeed, Gardner, Geoffrey C., Manfra, Michael, Mitchell, Andrew, Sela, Eran, Kleeorin, Yaakov, Meir, Yigal, Folk, Joshua
The spin 1/2 entropy of electrons trapped in a quantum dot has previously been measured with great accuracy, but the protocol used for that measurement is valid only within a restrictive set of conditions. Here, we demonstrate a novel entropy measure
Externí odkaz:
http://arxiv.org/abs/2110.14158
Publikováno v:
Physical Review B 105, 245116 (2022)
Experiments in doped transition metal oxides often show suppression in the single-particle density of states at the Fermi level, but disorder-induced zero-bias anomalies in strongly correlated systems remain poorly understood. Numerical studies of th
Externí odkaz:
http://arxiv.org/abs/2109.13782
Effects of annealing on chemical vapor deposited graphene are investigated via a weak localization magnetoresistance measurement. Annealing at \SI{300}{\celsius} in inert gases, a common cleaning procedure for graphene devices, is found to raise the
Externí odkaz:
http://arxiv.org/abs/2107.02824
Autor:
Hartman, Nikolaus, Olsen, Christian, Lüscher, Silvia, Samani, Mohammad, Fallahi, Saeed, Gardner, Geoffrey C., Manfra, Michael, Folk, Joshua
Publikováno v:
Nature Physics 14 1083-1086 (2018)
The entropy of an electronic system offers important insights into the nature of its quantum mechanical ground state. This is particularly valuable in cases where the state is difficult to identify by conventional experimental probes, such as conduct
Externí odkaz:
http://arxiv.org/abs/1905.12388
Publikováno v:
Phys. Rev. Lett. 123, 147702 (2019)
A pair of Majorana zero modes (MZMs) constitutes a nonlocal qubit whose entropy is $\log 2$. Upon strongly coupling one of the constituent MZMs to a reservoir with a continuous density of states, a universal entropy change of $\frac{1}{2}\log 2$ is e
Externí odkaz:
http://arxiv.org/abs/1905.12237
Autor:
Sajadi, Ebrahim, Palomaki, Tauno, Fei, Zaiyao, Zhao, Wenjin, Bement, Philip, Olsen, Christian, Lüscher, Silvia, Xu, Xiaodong, Folk, Joshua A., Cobden, David H.
The layered semimetal WTe_2 has recently been found to be a two-dimensional topological insulator (2D TI) when thinned down to a single monolayer, with conducting helical edge channels. We report here that intrinsic superconductivity can be induced i
Externí odkaz:
http://arxiv.org/abs/1809.04691
Autor:
Lara-Avila, Samuel, Kubatkin, Sergey, Kashuba, Oleksiy, Folk, Joshua A., Lüscher, Silvia, Yakimova, Rositza, Janssen, T. J. B. M., Tzalenchuk, Alexander, Fal'ko, Vladimir
Publikováno v:
Phys. Rev. Lett. 115, 106602 (2015)
Experimental evidence from both spin-valve and quantum transport measurements points towards unexpectedly fast spin relaxation in graphene. We report magnetotransport studies of epitaxial graphene on SiC in a vector magnetic field showing that spin r
Externí odkaz:
http://arxiv.org/abs/1507.03841
Autor:
Rossokhaty, Alexander V., Lüscher, Silvia, Folk, Joshua A., Watson, John D., Gardner, Geoffrey C., Manfra, Michael J.
Reentrant integer quantum Hall (RIQH) states are believed to be correlated electron solid phases, though their microscopic description remains unclear. As bias current increases, longitudinal and Hall resistivities measured for these states exhibit m
Externí odkaz:
http://arxiv.org/abs/1412.1921
Autor:
Samani, Mohammad, Rossokhaty, Alexander V., Sajadi, Ebrahim, Lüscher, Silvia, Folk, Joshua A., Watson, John D., Gardner, Geoffrey C., Manfra, Michael J.
Publikováno v:
Phys. Rev. B 90, 121405 (2014)
The effects of low temperature illumination and annealing on fractional quantum Hall (FQH) characteristics of a GaAs/AlGaAs quantum well are investigated. Illumination alone, below 1 K, decreases the density of the 2DEG electrons by more than an orde
Externí odkaz:
http://arxiv.org/abs/1408.3849