Results 41 to 50 of about 169,724 (299)

Spin gap and magnetic resonance in superconducting BaFe$_{1.9}$Ni$%_{0.1}$As$_{2}$

, 2009
We use neutron spectroscopy to determine the nature of the magnetic excitations in superconducting BaFe$_{1.9}$Ni$_{0.1}$As$_{2}$ ($T_{c}=20$ K). Above $T_{c}$ the excitations are gapless and centered at the commensurate antiferromagnetic wave vector of ...
Cao, Guanghan, Chang, Sung, Chen, Ying, Dai, Pengcheng, Li, Linjun, Li, Shiliang, Luo, Yongkang, Lynn, Jeffrey W., Xu, Zhu'an   +8 more
core   +1 more source

Geodesics for Efficient Creation and Propagation of Order along Ising Spin Chains [PDF]

, 2007
Experiments in coherent nuclear and electron magnetic resonance, and optical spectroscopy correspond to control of quantum mechanical ensembles, guiding them from initial to final target states by unitary transformations.
A. Schweiger, D. C. Mattis, E. H. Lieb, E. Ising, Haidong Yuan, J. Cavanagh, Navin Khaneja, R. M. White, R. R. Ernst, S. J. Glaser, Steffen J. Glaser, T. O. Reiss, W. J. Caspers   +12 more
core   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Oxidation-Triggered Formation of Diradical Cations from Paramagnetic Molecules and Their Spin Density Evolution

Molecules
Controllable intramolecular spin-polarized flow refers to the manipulation of spin-polarized electron transport within molecules through externally applied stimuli, thereby modulating their intramolecular spin characteristics and magnetic properties.
Di Wang, Dan Yao, Xinyu Li, Lingli Shi, Chunyuan Wang, Jie Li, Weili Kong, Yongliang Qin, Martin Baumgarten   +8 more
doaj   +1 more source

Optical Spin Initialization and Non-Destructive Measurement in a Quantum Dot Molecule

, 2008
The spin of an electron in a self-assembled InAs/GaAs quantum dot molecule is optically prepared and measured through the trion triplet states. A longitudinal magnetic field is used to tune two of the trion states into resonance, forming a superposition ...
Badescu, Stefan C., Bashkansky, Mark, Bracker, Allan S., Economou, Sophia E., Gammon, Daniel, Kim, Danny, Reinecke, Thomas L., Scheibner, Michael   +7 more
core   +1 more source

Spectroscopy of spin-orbit quantum bits in indium antimonide nanowires [PDF]

, 2012
Double quantum dot in the few-electron regime is achieved using local gating in an InSb nanowire. The spectrum of two-electron eigenstates is investigated using electric dipole spin resonance.
E. P. A. M. Bakkers, J. W. G. van den Berg, K. Zuo, L. P. Kouwenhoven, R. Winkler, S. M. Frolov, S. Nadj-Perge, S. R. Plissard, V. S. Pribiag   +8 more
core   +4 more sources

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

Field-Induced Gap in a Quantum Spin-1/2 Chain in a Strong Magnetic Field

, 2010
Magnetic excitations in copper pyrimidine dinitrate, a spin-1/2 antiferromagnetic chain with alternating $g$-tensor and Dzyaloshinskii-Moriya interactions that exhibits a field-induced spin gap, are probed by means of pulsed-field electron spin resonance
Feyerherm, R., Manmana, S. R., Mila, F., Ozerov, M., Wosnitza, J., Zvyagin, S. A., Čižmár, E.   +6 more
core   +1 more source

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

Long-Lived Ultracold Molecules with Electric and Magnetic Dipole Moments

, 2017
We create fermionic dipolar $^{23}$Na$^6$Li molecules in their triplet ground state from an ultracold mixture of $^{23}$Na and $^6$Li. Using magneto-association across a narrow Feshbach resonance followed by a two-photon STIRAP transfer to the triplet ...
Ebadi, Sepehr, Jamison, Alan O., Ketterle, Wolfgang, Park, Juliana J., Rvachov, Timur M., Sommer, Ariel T., Son, Hyungmok, Zwierlein, Martin W.   +7 more
core   +2 more sources