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We study nonlinear inter-subband microwave absorption of electrons bound to the liquid helium surface. Already for a comparatively low radiation intensity, resonant absorption due to transitions between the two lowest subbands is…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 Denis Konstantinov , M. I. Dykman , M. J. Lea , Yu. P. Monarkha , K. Kono

The breaking of a chemical bond is fundamental in most chemical reactions. To understand chemical processes in heterogeneous catalysis or on-surface polymerization the study of bond dissociation in molecules adsorbed on crystalline surfaces…

Chemical Physics · Physics 2023-08-07 Donato Civita , Jutta Schwarz , Stefan Hecht , Leonhard Grill

Our ab initio calculations of CO adsorption energies on low miller index (111), (100), stepped (211), and kinked (532) gold surfaces show a strong dependence on local coordination with a reduction in Au atom coordination leading to higher…

Materials Science · Physics 2009-11-13 F. Mehmood , A. Kara , T. S. Rahman , C. R. Henry

Transport characteristics of single crystal bismuth films on Si(111)-7 \times 7 are found to be metallic or insulating at temperature below or above TC, respectively. The transition temperature TC decreases as the film thickness increases.…

Mesoscale and Nanoscale Physics · Physics 2010-05-21 F. Pang , X. J. Liang , Z. L. Liao , S. L. Yin , D. M. Chen

The recent conjecture of a topologically-protected surface state in SmB$_6$ and the verification of robust surface conduction below 4 K have prompted a large effort to understand the surface states. Conventional Hall transport measurements…

The article presents the results of measurement and analysis of the field dependences of the static magnetic susceptibility of thin epitaxial silicon carbide films grown on the (110) surface of single-crystal silicon by the method of the…

We coincidently measure the molecular frame photoelectron angular distribution and the ion sum-momentum distribution of single and double ionization of CO molecules by using circularly and elliptically polarized femtosecond laser pulses,…

Atomic Physics · Physics 2015-06-04 J. Wu , L. Ph. H. Schmidt , M. Kunitski , M. Meckel , S. Voss , H. Sann , H. Kim , T. Jahnke , A. Czasch , R. Dörner

Employing density functional theory calculations we explore initial stage of competitive alloying of co-deposited silver and indium atoms into a silicon surface. Particularly, we identify respective adsorption positions and activation…

Materials Science · Physics 2023-02-17 D. V. Prodan , G. V. Paradezhenko , D. Yudin , A. A. Pervishko

Localized heating of a gas by intense laser pulses leads to interesting acoustic, hydrodynamic and optical effects with numerous applications in science and technology, including controlled wave guiding and remote atmosphere sensing.…

Optics · Physics 2015-09-30 A. A. Milner , A. Korobenko , K. Rezaiezadeh , V. Milner

Recent experimental conductance measurements performed on paramagnetic molecular adsorbates on a superconducting surface, using superconducting scanning tunneling microscopy techniques, are theoretically investigated. For low temperatures,…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 P. Berggren , J. Fransson

A resonance-induced change in the resistivity of the surface state electrons (SSE) exposed to the microwave (MW) radiation is observed. The MW frequency corresponds to the transition energy between two lowest Rydberg energy levels. All…

Other Condensed Matter · Physics 2011-02-04 Denis Konstantinov , Hanako Isshiki , Hikota Akimoto , Keiya Shirahama , Yuriy Monarkha , Kimitoshi Kono

The activation and dissociation of H2 molecules on Cu(001) surface is studied theoretically. The activation barrier for the dissociation of H2 on Cu(001) is determined by first-principles calculations to be ~ 0.59 eV in height. Electron…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 Xiaofan Yu , Yangwu Tong , Yong Yang

The propagation of surface electromagnetic waves along a uniform magnetic field is studied in a quantum electron-hole semiconductor plasma. A new forward propagating mode, not reported before, is found by the effect of quantum tunneling,…

Plasma Physics · Physics 2015-03-19 A. P. Misra

The effect of surface atom vibrations for H$_2$ scattering from a Cu(111) surface at different temperatures is being investigated for hydrogen molecules in their rovibrational ground state ($v$=0, $j$=0). We assume weakly correlated…

Other Condensed Matter · Physics 2021-05-04 Joy Dutta , Souvik Mandal , Satrajit Adhikari , Paul Spiering , Jörg Meyer , Mark F. Somers

SmB6 is a mixed valence Kondo insulator that exhibits a sharp increase in resistance following an activated behavior that levels off and saturates below 4K. This behavior can be explained by the proposal of SmB6 representing a new state of…

Strongly Correlated Electrons · Physics 2018-02-14 Brian Casas , Alex Stern , Dmitry K. Efimkin , Zachary Fisk , Jing Xia

We present a model calculation for the temperature dependent behaviour of surface states on a ferromagnetic local-moment film. The film is described within the s-f model featuring local magnetic moments being exchange coupled to the…

Strongly Correlated Electrons · Physics 2009-10-31 R. Schiller , W. Mueller , W. Nolting

The properties of InAs (110) surfaces have been investigated by means of low-temperature scanning tunneling microscopy and spectroscopy. A technique for ex-situ sulphur passivation has been developed to form an accumulation layer on such a…

Mesoscale and Nanoscale Physics · Physics 2009-09-25 L. Canali , J. W. G. Wildoer , O. Kerkhof , L. P. Kouwenhoven

We investigate the dependence of the inelastic spin excitation contribution to scanning tunneling spectroscopy recorded above Fe adsorbates on the InSb(110) surface at subkelvin temperatures, on bulk doping and tunnel junction resistance.…

Mesoscale and Nanoscale Physics · Physics 2011-02-21 Bruno Chilian , Alexander A. Khajetoorians , Jens Wiebe , Roland Wiesendanger

The dynamical theory of thermally activated resonant magnetization tunneling in uniaxially anisotropic magnetic molecules such as Mn_12Ac (S=10) is developed.The observed slow dynamics of the system is described by master equations for the…

Statistical Mechanics · Physics 2009-10-31 D. A. Garanin , E. M. Chudnovsky

We present an extension of the tunneling theory for scanning tunneling microcopy (STM) to include different types of vibrational-electronic couplings responsible for inelastic contributions to the tunnel current in the strong-coupling…