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Optical absorption spectra of nanocrystalline cupric oxide CuO samples, obtained using the converging spherical shock wave procedure, reveal significant spectral weight red-shift as compared with spectra of single crystalline CuO samples.…

Strongly Correlated Electrons · Physics 2007-05-23 B. A. Gizhevskii , Yu. P. Sukhorukov , N. N. Loshkareva , A. S. Moskvin , E. V. Zenkov , E. A. Kozlov

Because of the broken time-translation symmetry, in periodically driven vibrational systems fluctuations of different vibration components have different intensities. Fluctuations of one of the components are often squeezed, whereas…

Mesoscale and Nanoscale Physics · Physics 2020-06-26 J. S. Huber , G. Rastelli , M. J. Seitner , J. Kölbl , W. Belzig , M. I. Dykman , E. M. Weig

We present measurements of the thermal fluctuations of the free surface of an aging colloidal suspension, Laponite. The technique consists in measuring the fluctuations of the position of a laser beam that reflects from the free surface.…

Soft Condensed Matter · Physics 2015-05-13 Alexandre Mamane , Christian Frétigny , François Lequeux , Laurence Talini

Noise and decoherence due to spurious two-level systems (TLS) located at material interfaces is a long-standing issue in solid state quantum technologies. Efforts to mitigate the effects of TLS have been hampered by a lack of surface…

Because of their small decay rates, nanomechanical modes enable studying strongly nonlinear phenomena for a moderately strong resonant driving. Here we study the response of a driven resonator to an additional probe field. We experimentally…

Mesoscale and Nanoscale Physics · Physics 2021-01-11 J. S. Ochs , M. Seitner , M. I. Dykman , E. M. Weig

In this letter we propose an experiment to measure the Kondo effect for magnetic atoms adsorbed on the surface of a metallic nanowire. In addition to the traditional sp-d hybridization, by introducing the strong electromagnetic field of the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Ren-Shou Huang , Yia-Chung Chang

We investigate the growth of two-dimensional (2D) crystals on fluctuating surfaces using a phase field crystal model that is relevant on atomic length and diffusive time scales. Motivated by recent experiments which achieved unprecedented…

Materials Science · Physics 2024-10-04 S. K. Mkhonta , Zhi-Feng Huang , K. R. Elder

We study the effect of dissipation on quantum phase fluctuations in d-wave superconductors. Dissipation, arising from a nonzero low frequency optical conductivity which has been measured in experiments below $T_c$, has two effects: (1) a…

Superconductivity · Physics 2009-10-31 L. Benfatto , S. Caprara , C. Castellani , A. Paramekanti , M. Randeria

In the atomic force microscope, the nanoscale force topography of even complex surface superstructures is extracted by the changing vibration frequency of a scanning tip. An alternative dissipation topography with similar or even better…

Mesoscale and Nanoscale Physics · Physics 2010-09-08 Carlotta Negri , Nicola Manini , Andrea Vanossi , Giuseppe E. Santoro , Erio Tosatti

The spatially resolved near-field radiative heat transfer between a nanoscale probe and a substrate is studied in the fluctuational electrodynamics framework within the dipolar approximation. It is shown that the introduction of a thin…

Mesoscale and Nanoscale Physics · Physics 2025-12-08 Milo Vescovo , Philippe Ben-Abdallah , Riccardo Messina

The possibility of spatially resolving the optical properties of atomically thin materials is especially appealing as they can be modulated at the micro- and nanoscale by reducing their thickness, changing the doping level or applying a…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Andres Castellanos-Gomez , Jorge Quereda , Herko P. van der Meulen , Nicolás Agraït , Gabino Rubio-Bollinger

Interference effects on the transport through two localized tunnel junctions on the surface of a well-grounded sample reveal intrinsic spatial correlations characteristic of the uncoupled sample. Differential conductances of the…

Condensed Matter · Physics 2009-10-22 Jeff M. Byers , Michael E. Flatte'

We propose an explanation for the recently measured slow fluctuations and ``blinking'' in the surface enhanced Raman scattering (SERS) spectrum of single molecules adsorbed on a silver colloidal particle. We suggest that these fluctuations…

Soft Condensed Matter · Physics 2009-11-10 D. B. Lukatsky , G. Haran , S. A. Safran

This paper presents a new technique to study the adsorption and desorption of ions and electrons on insulating surfaces in the presence of strong electric fields in cryoliquids. The experimental design consists of a compact cryostat coupled…

Ground-state fluctuations reduce the zero-temperature magnetic moments of the spins in a quantum antiferromagnet. In the neighborhood of surfaces, interfaces, and other defects which break translational symmetry, these fluctuations are not…

Other Condensed Matter · Physics 2007-05-23 G. J. Mata , E. Pestana , M. Kiwi , H. Dreysse

Surface strain often controls properties of the material including charge transport and chemical reactivity. Localized surface strain is measured with atomic resolution on (111) ceria nanoparticle surfaces using environmental transmission…

Materials Science · Physics 2023-05-19 Piyush Haluai , Tara M. Boland , Ethan L. Lawrence , Peter A. Crozier

Superconductivity is identified by the emergence of a macroscopic zero-resistance state, typically inferred from a vanishing four-probe voltage at finite current. That inference assumes spatially uniform conduction-e.g., at least one…

. We consider the effect of an external bias voltage and the spatial variation of the surface potential, on the damping of cantilever vibrations. The electrostatic friction is due to energy losses in the sample created by the…

Materials Science · Physics 2009-11-11 A. I. Volokitin , B. N. J. Persson

Trapped-ion quantum platforms are subject to `anomalous' heating due to interactions with electric-field noise sources of nature not yet completely known. There is ample experimental evidence that this noise originates at the surfaces of…

Quantum Physics · Physics 2017-09-15 F. Galve , J. Alonso , R. Zambrini

Small numbers of nitrogen dopants dramatically modify the electronic properties of GaAs, generating very large shifts in the conduction-band energies with nonlinear concentration dependence, and impurity-associated spatially-localized…

Mesoscale and Nanoscale Physics · Physics 2017-11-01 R. C. Plantenga , V. R. Kortan , T. Kaizu , Y. Harada , T. Kita , M. E. Flatté , P. M. Koenraad