Results 91 to 100 of about 93,610 (302)

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Calculating the Electronic Transport Properties of Different Carbon Nanotube Based Intramolecular Junctions [PDF]

Iranica Journal of Energy and Environment, 2010
The electronic structure and the conductance of carbon nanotube based metal/semiconductor/metal intramolecular junctions are investigated numerically. The nature of electronic states at the interfaces and in the semiconductor section is analysed with the
Rashid Nizam, S. Mahdi, A. Rizvi, Ameer Azam   +3 more
doaj  

How backscattering off a point impurity can enhance the current and make the conductance greater than e^2/h per channel

, 2002
It is well known that while forward scattering has no effect on the conductance of one-dimensional systems, backscattering off a static impurity suppresses the current.
A. Vishwanath, A.J. Kent, B.L. Altshuler, C.de C. Chamon, C.L. Kane, D. E. Feldman, D. Schmeltzer, D.C. Mattis, D.L. Maslov, F.P. Milliken, I. Safi, J. Rammer, J. von Delft, J.M. Kinaret, L. Saminadayar, P. Sharma, R. de Piccioto, S. Datta, V.I. Talyanskii, V.V. Ponomarenko, X.-G. Wen, Y. Levinson, Y. Oreg, Yuval Gefen   +23 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Fano resonance in electronic transport through a quantum wire with a side-coupled quantum dot: X-boson treatment

, 2002
The transport through a quantum wire with a side coupled quantum dot is studied. We use the X-boson treatment for the Anderson single impurity model in the limit of $U=\infty $.
A. Georges, A.A. Aligia, B.H. Bernhard, B.H. Bernhard, B.R. Bulka, C.A. Busser, D. Gerace, D. Goldhaber-Gordon, D.C. Langreth, D.M. Newns, E. V. Anda, E.V. Anda, H.P. Eckle, J. Gores, J. Hubbard, J. Hubbard, J. Li, K. Kang, L.I. Glazman, L.I. Glazman, M. Madhavam, M. S. Figueira, M.A. Davidovich, M.E. Foglio, M.E. Foglio, M.E. Torio, M.S. Figueira, M.S. Figueira, N.S. Wingreen, P. Coleman, P. Coleman, Pedro A. Orellana, R. Franco, R. Franco, R. Franco, R. Franco, S. Hershfield, T.A. Costi, T.A. Costi, T.A. Costi, T.K. Ng, T.S. Kim, V. Ferrari, Y. Meir   +43 more
core   +1 more source

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

Advanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian, Yao Zhang, Xiaowei Sheng, Xiuxian Yang, Gang Zhang, Junfeng Gao, Xiaotian Wang   +6 more
wiley   +1 more source

Cascade of Quantum Phase Transitions in Tunnel-Coupled Edge States

, 2004
We report on the cascade of quantum phase transitions exhibited by tunnel-coupled edge states across a quantum Hall line junction. We identify a series of quantum critical points between successive strong and weak tunneling regimes in the zero-bias ...
C. L. Kane, I. Yang, K. W. Baldwin, K. W. West, L. N. Pfeiffer, W. Kang   +5 more
core   +1 more source

Anomalous Conductances in an Ultracold Quantum Wire

Physical Review Letters, 2016
We analyze the recently measured anomalous transport properties of an ultracold gas through a ballistic constriction [S. Krinner et al., PNAS 201601812 (2016)]. The quantized conductance observed at weak interactions increases several-fold as the gas is made strongly interacting, which cannot be explained by the Landauer theory of single-channel ...
Kanász-Nagy, M., Glazman, L., Esslinger, T., Demler, E. A.   +3 more
openaire   +5 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

Kondo effect in quantum dots

, 2004
We review mechanisms of low-temperature electronic transport through a quantum dot weakly coupled to two conducting leads. Transport in this case is dominated by electron-electron interaction.
Abrikosov A A, Abrikosov A A, Abrikosov A A, Affleck I, Alhassid Y, Altshuler B L, Anderson P W, Anderson P W, Anderson P W, Andrei N, Appelbaum J A, Beenakker C W J, Berry M V, Berry M V, Blanter Ya M, Blanter Ya M, Chklovskii D B, Coleman P, Costi T A, Devoret M, Duke C B, Evans A K, Flensberg K, Fühner C, Giaever I, Glazman L I, Glazman L I, Glazman L I, Goldman V J, Hewson A S, Izumida W, Kastner M A, Kondo J, Kouwenhoven L, Kouwenhoven L P, Kouwenhoven L P, Kouwenhoven L P, Kulik I O, Leonid Glazman, Logan R A, Losee D L, Matveev K A, Matveev K A, McEuen P L, Mehta M L, Meirav U, Michael Pustilnik, Newton R G, Nozières P, Nozières P, Nozières P, Paaske J Rosch A Wölfle P, Pustilnik M, Pustilnik M, Rowell J M, Tsvelick A M, Wilson K G, Wyatt A F G, Ziman J M   +58 more
core   +3 more sources