Results 61 to 70 of about 302,602 (276)

Tunneling Time in Ultrafast Science is Real and Probabilistic

, 2013
We compare the main competing theories of tunneling time against experimental measurements using the attoclock in strong laser field ionization of helium atoms.
Boge, Robert, Cirelli, Claudio, Gallmann, Lukas, Heuser, Sebastian, Keller, Ursula, Landsman, Alexandra, Ludwig, André, Maurer, Jochen, Weger, Matthias   +8 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Robustness evaluation of cutting tool maintenance planning for soft ground tunneling projects

Underground Space, 2018
Tunnel boring machines require extensive maintenance and inspection effort to provide a high availability. The cutting tools of the cutting wheel must be changed timely upon reaching a critical condition.
Alena Conrads, Markus Scheffer, Markus König, Markus Thewes   +3 more
doaj   +1 more source

Analysis of Arch Forming Factors of Shallow Buried Hard Rock Tunnel under Overlying Load

Buildings, 2023
To investigate the arching effect of shallow buried hard rock tunnels under overlying load, the engineering scenario of a subway station on Qingdao Metro Line 6 is utilized. A large-scale tunnel loading model test is conducted, in conjunction with finite
Lixue Cao, Wentai Cui, Zhe Qin, Rui Xu, Tongtong Wang, Yanbing Liu   +5 more
doaj   +1 more source

Tunneling current between graphene layers

, 2013
The physical model that allows to calculate the values of the tunneling current be-tween graphene layers is proposed. The tunneling current according to the pro-posed model is proportional to the area of tunneling transition.
Lozovik, Yurii E., Poklonski, Nikolai A., Popov, Andrey M., Siahlo, Andrei I., Vyrko, Sergey A.   +4 more
core   +1 more source

Tunneling Magnetoresistance in Noncollinear Antiferromagnetic Tunnel Junctions

Physical Review Letters, 2022
Antiferromagnetic (AFM) spintronics has emerged as a subfield of spintronics driven by the advantages of antiferromagnets producing no stray fields and exhibiting ultrafast magnetization dynamics. The efficient method to detect an AFM order parameter, known as the Néel vector, by electric means is critical to realize concepts of AFM spintronics.
Jianting Dong, Xinlu Li, Gautam Gurung, Meng Zhu, Peina Zhang, Fanxing Zheng, Evgeny Y. Tsymbal, Jia Zhang   +7 more
openaire   +3 more sources

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Resonant and non-resonant Tunneling through a double barrier

, 2004
An explicit expression is obtained for the phase-time corresponding to tunneling of a (non-relativistic) particle through two rectangular barriers, both in the case of resonant and in the case of non-resonant tunneling.
A. K Zaichenko, Bracher C., E Recami, Nimtz G., Nimtz G., Olkhovsky V. S., Olkhovsky V. S., V. S Olkhovsky   +7 more
core   +2 more sources

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

Advanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann, Christoph Findler, Michael Olney‐Fraser, Lev Kazak, Fedor Jelezko   +4 more
wiley   +1 more source

Anomalous tunneling conductances of a spin singlet \nu=2/3 edge states: Interplay of Zeeman splitting and Long Range Coulomb Interaction

, 1998
The point contact tunneling conductance between edges of the spin singlet $\nu=2/3,\hat{K}=(3/3/0)$ quantum Hall states is studied both in the quasiparticle tunneling picture and in the electron tunneling picture. Due to the interplay of Zeeman splitting
A. Furusaki, A. M. Chang, A. Schmid, C. Kane, C. L. Kane, David C. Dixon, F. P. Milliken, H. C. Lee, H. C. Lee, H. C. Lee, H. J. Schulz, I. A. McDonald, J. Dempsey, J. P. Eisenstein, J. P. Eisenstein, K. Imura, K. Imura, K. Imura, K. Moon, K. Moon, K. R. Wald, M. Franco, M. P. A. Fisher, P. Fendley, S.-R. Eric Yang, X. G. Wen, X. G. Wen, X. G. Wen, X. G. Wen   +28 more
core   +1 more source