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Controlling the motion of macroscopic oscillators in the quantum regime has been the subject of intense research in recent decades. In this direction, opto-mechanical systems, where the motion of micro-objects is strongly coupled with laser…

Quantum Physics · Physics 2021-06-03 Maxime Perdriat , Clément Pellet-Mary , Paul Huillery , Loïc Rondin , Gabriel Hétet

Strongly interacting spins underlie many intriguing phenomena and applications ranging from magnetism to quantum information processing. Interacting spins combined with motion display exotic spin transport phenomena, such as superfluidity…

Predictions state that graphene can spontaneously develop magnetism from the Coulomb repulsion of its $\pi$-electrons, but its experimental verification has been a challenge. Here, we report on the observation and manipulation of individual…

Mesoscale and Nanoscale Physics · Physics 2019-01-15 Jingcheng Li , Sofia Sanz , Martina Corso , Deung Jang Choi , Diego Peña , Thomas Frederiksen , Jose Ignacio Pascual

Low-temperature spin-polarized scanning tunneling microscopy is employed to study spin transport across single Cobalt-Phathalocyanine molecules adsorbed on well characterized magnetic nanoleads. A spin-polarized electronic resonance is…

Materials Science · Physics 2014-09-25 C. Iacovita , M. V. Rastei , B. W. Heinrich , T. Brumme , J. Kortus , L. Limot , J. P. Bucher

In this article, we study control of electron-nuclear spin dynamics at magnetic field strengths where the Larmor frequency of the nucleus is comparable to the hyperfine coupling strength. The quantization axis for the nuclear spin differs…

Quantum Physics · Physics 2009-11-13 Navin Khaneja

Solid state spin qubits are promising candidates for quantum information processing, but controlled interactions and entanglement in large, multi-qubit systems are currently difficult to achieve. We describe a method for programmable…

Electric control of spins has been a longstanding goal in the field of solid state physics due to the potential for increased efficiency in information processing. This efficiency can be optimized by transferring spintronics to the atomic…

Mesoscale and Nanoscale Physics · Physics 2023-11-30 Piotr Kot , Maneesha Ismail , Robert Drost , Janis Siebrecht , Haonan Huang , Christian R. Ast

The inelastic portion of the tunnel current through an individual magnetic atom grants unique access to read out and change the atom's spin state, but it also provides a path for spontaneous relaxation and decoherence. Controlled closure of…

Mesoscale and Nanoscale Physics · Physics 2016-01-05 B. Bryant , R. Toskovic , A. Ferrón , J. L. Lado , A. Spinelli , J. Fernández-Rossier , A. F. Otte

A device enabling mechanically-controlled spin and electric transport in mesoscopic structures is proposed. It is based on the transfer of electrons through weak links formed by suspended nanowires, on which the charge carriers experience a…

Mesoscale and Nanoscale Physics · Physics 2014-07-09 R. I. Shekhter , O. Entin-Wohlman , A. Aharony

The ability to control and manipulate spins via electrical, magnetic and optical means has generated numerous applications in metrology and quantum information science in recent years. A promising alternative method for spin manipulation is…

Mesoscale and Nanoscale Physics · Physics 2013-04-04 Sungkun Hong , Michael S. Grinolds , Patrick Maletinsky , Ronald L. Walsworth , Mikhail D. Lukin , Amir Yacoby

We investigate the physical mechanisms for achieving an electrical control of conventional spin-singlet superconductivity in thin films by focusing on the role of surface orbital polarization. Assuming a multi-orbital description of the…

Superconductivity · Physics 2020-09-18 Maria Teresa Mercaldo , Paolo Solinas , Francesco Giazotto , Mario Cuoco

Control over quantum systems is typically achieved by time-dependent electric or magnetic fields. Alternatively, electronic spins can be controlled by spin-polarized currents. Here we demonstrate coherent driving of a single spin by a…

Mesoscale and Nanoscale Physics · Physics 2024-06-26 Stepan Kovarik , Richard Schlitz , Aishwarya Vishwakarma , Dominic Ruckert , Pietro Gambardella , Sebastian Stepanow

Artificial molecules containing just one or two electrons provide a powerful platform for studies of orbital and spin quantum dynamics in nanoscale devices. A well-known example of these dynamics is tunneling of electrons between two…

We report on the fabrication and transport characterization of atomically-precise single molecule devices consisting of a magnetic porphyrin covalently wired by graphene nanoribbon electrodes. The tip of a scanning tunneling microscope was…

Mesoscale and Nanoscale Physics · Physics 2019-04-16 Jingcheng Li , Niklas Friedrich , Nestor Merino , Dimas G. de Oteyza , Diego Peña , David Jacob , Jose Ignacio Pascual

The scanning metallic tip of a scanning force microscope was coupled capacitively to electrons confined in a lithographically defined gate-tunable quantum dot at a temperature of 300 mK. Single electrons were made to hop on or off the dot…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. Pioda , S. Kicin , T. Ihn , M. Sigrist , A. Fuhrer , K. Ensslin , A. Weichselbaum , S. E. Ulloa , M. Reinwald , W. Wegscheider

Molecular spintronics is made possible by the coupling between electronic configuration and magnetic po- larization of the molecules. For control and application of the individual molecular states it is necessary to both read and write…

Mesoscale and Nanoscale Physics · Physics 2016-04-27 T. Saygun , J. Bylin , H. Hammar , J. Fransson

We describe an approach to electrically control the strong interaction between a single electron spin and the vibrational motion of a suspended carbon nanotube resonator. The strength of the deflection-induced spin-phonon coupling is…

Quantum Physics · Physics 2015-10-20 Fang-Yu Hong , Jing-Li Fu , Yan Wu , Zhi-Yan Zhu

Manipulation of spin states at the single-atom scale underlies spin-based quantum information processing and spintronic devices. Such applications require protection of the spin states against quantum decoherence due to interactions with…

Mesoscale and Nanoscale Physics · Physics 2018-11-13 Yujeong Bae , Kai Yang , Philip Willke , Taeyoung Choi , Andreas J. Heinrich , Christopher P. Lutz

Two-level quantum systems with strong spin-orbit coupling allow for all-electrical qubit control and long-distance qubit coupling via microwave and phonon cavities, making them of particular interest for scalable quantum information…

Mesoscale and Nanoscale Physics · Physics 2019-01-11 J. van der Heijden , T. Kobayashi , M. G. House , J. Salfi , S. Barraud , R. Lavieville , M. Y. Simmons , S. Rogge

The influence of hydrogen on magnetization is of significant interest to spintronics. Understanding and controlling this phenomenon at the atomic scale, particularly in nanoscale systems, is crucial. In this study, we utilized scanning…

Materials Science · Physics 2024-09-05 A. Fétida , O. Bengone , C. Goyhenex , F. Scheurer , R. Robles , N. Lorente , L. Limot