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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

Scanning Electron Microscopy (SEM) experiments provide detailed insights into material microstructures, enabling high-resolution imaging as well as crystallographic analysis through advanced techniques like Electron Backscatter Diffraction…

Materials Science · Physics 2024-12-05 Christina Koenig , Alice Bastos da Silva Fanta , Joerg R. Jinschek

We describe a quasi-optical multifrequency ESR spectrometer operating in the 75-225 GHz range and optimized at 210 GHz for general use in condensed matter physics, chemistry and biology. The quasi-optical bridge detects the change of mm…

Materials Science · Physics 2012-10-23 Kalman L Nagy , Dario Quintavalle , Titusz Feher , Andras Janossy

To meet changing research demands, new scanning tunneling microscope (STM) features must constantly evolve. We describe the design, development, and performance of a modular plugin STM which is compact and stable. The STM head is equipped…

Mesoscale and Nanoscale Physics · Physics 2024-03-05 Angela M. Coe , Guohong Li , Eva Y. Andrei

We report a new technique of scanning capacitance microscopy at microwave frequencies. A near field scanning microwave microscope probe is kept at a constant height of about 1nm above the samplewith the help of Scanning Tunneling Microscope…

Materials Science · Physics 2007-05-23 Atif Imtiaz , Steven M. Anlage

Lightwave-driven scanning tunnelling microscopy (STM) at near-IR frequencies promises an unprecedented combination of atomic spatial resolution and temporal resolution approaching the attosecond range. To achieve this goal, high-sensitivity…

Electron paramagnetic resonance (EPR) spectroscopy is widely employed to characterize paramagnetic complexes. Recently, EPR combined with scanning tunneling microscopy (STM) achieved single-spin sensitivity with sub-angstrom spatial…

Mesoscale and Nanoscale Physics · Physics 2020-10-09 Tom S. Seifert , Stepan Kovarik , Dominik M. Juraschek , Nicola A. Spaldin , Pietro Gambardella , Sebastian Stepanow

Correlating structure with electronic functionality is central to the engineering of quantum materials and devices whose properties depend sensitively on disorder. Transmission electron microscopy (TEM) offers high spatial resolution…

We present an electron spin resonance (ESR) approach to characterize shallow electron trapping in band-tail states at Si/SiO2 interfaces in metal-oxide-semiconductor (MOS) devices and demonstrate it on two MOS devices fabricated at…

The temperature dependence of the electron spin-lattice relaxation SLR was studied in Er0.01Y0.99Ba2Cu3Ox compounds. The data derived from the electron spin resonance ESR and SLR measurements were compared to those from inelastic neutron…

Superconductivity · Physics 2009-11-11 V. A. Ivanshin , M. R. Gafurov , I. N. Kurkin , S. P. Kurzin , A. Shengelaya , H. Keller , M. Gutmann

The use of superconducting micro-resonators in combination with quantum-limited Josephson parametric amplifiers has in recent years lead to more than four orders of magnitude improvement in the sensitivity of pulsed Electron Spin Resonance…

We consider fluctuations of the electronic spin due to coupling to nuclear spin. Noise spectroscopy of an electronic spin can be revealed in the Scanning Tunnelling Microscope (STM). We argue that the noise spectroscopy of electronic spin…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. V. Balatsky , J. Fransson , D. Mozyrsky , Yishay Manassen

Cryogenic soft X-ray imaging spectrometers are currently being developed for applications in the fields of Astronomy and material sciences. In this paper we present experiments on optimized single devices, which show measured energy…

Superconductivity · Physics 2018-07-04 G. Brammertz , P. Verhoeve , A. Peacock , D. Martin , N. Rando , R. den Hartog , D. J. Goldie

We propose a novel probe technique capable of performing local low-temperature spectroscopy on a 2D electron system (2DES) in a semiconductor heterostructure. Motivated by predicted spatially-structured electron phases, the probe uses a…

Mesoscale and Nanoscale Physics · Physics 2011-01-06 Adam Sciambi , Matthew Pelliccione , Seth R. Bank , Arthur C. Gossard , David Goldhaber-Gordon

We study whether a direct measurement of the absolute temperature of a Magnetic Tunnel Junction (MTJ) can be performed using the high frequency electrical noise that it delivers under a finite voltage bias. Our method includes quasi-static…

Materials Science · Physics 2016-08-03 Adrien Le Goff , Vladimir Nikitin , Thibaut Devolder

We have investigated the electron spin resonance (ESR) on single crystals of BaCu$\_2$Ge$\_2$O$\_7$ at temperatures between 300 and 2 K and in a large frequency band, 9.6 -134 GHz, in order to test the predictions of a recent theory,…

Strongly Correlated Electrons · Physics 2007-05-23 Sylvain Bertaina , V. A. Pashchenko , Anatoli Stepanov , T. Masuda , K. Uchinokura

A transimpedance amplifier has been designed for scanning tunneling microscopy (STM). The amplifier features low noise (limited by the Johnson noise of the 1 G{\Omega} feedback resistor at low input current and low frequencies), sufficient…

Instrumentation and Detectors · Physics 2020-07-02 Martin Štubian , Juraj Bobek , Martin Setvin , Ulrike Diebold , Michael Schmid

We develop a theory of spin noise spectroscopy of itinerant, noninteracting, spin-carrying fermions in different regimes of temperature and disorder. We use kinetic equations for the density matrix in spin variables. We find a general…

Statistical Mechanics · Physics 2015-05-14 Simon Kos , Alexander V. Balatsky , Peter B. Littlewood , Darryl L. Smith

A scanning tunneling microscope (STM) can do more than atomic imaging and manipulation. Its tunneling current can also be used for the excitation of light, converting electron energy to photon energy. STM based single-molecule…

Optics · Physics 2019-01-01 Yao Zhang , Yang Zhang , Zhenchao Dong

The temperature dependence of hydrogen (H) desorption from Si(100) H-terminated surfaces by a scanning tunneling microscope (STM) is reported for negative sample bias. It is found that the STM induced H desorption rate ($R$) decreases…

Materials Science · Physics 2009-10-31 C. Thirstrup , M. Sakurai , T. Nakayama , K. Stokbro