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Related papers: Single-molecule enhanced spin-flip detection

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We carried out inelastic neutron scattering experiments on a buckled honeycomb lattice antiferromagnet Ba$_{2}$NiTeO$_{6}$ exhibiting a stripe structure at a low temperature. Magnetic excitations are observed in the energy range of $\hbar…

Strongly Correlated Electrons · Physics 2017-10-11 Shinichiro Asai , Minoru Soda , Kazuhiro Kasatani , Toshio Ono , V. Ovidiu Garlea , Barry Winn , Takatsugu Masuda

Two-electron charged self-assembled quantum dot molecules exhibit a decoherence-avoiding singlet-triplet qubit subspace and an efficient spin-photon interface. Here, we demonstrate that the cycling transitions originating from auxiliary…

Mesoscale and Nanoscale Physics · Physics 2015-09-15 Y. L. Delley , M. Kroner , S. Faelt , W. Wegscheider , A. İmamoğlu

We investigate the spin-nonconserving relaxation channel of excitons by their couplings with phonons in two-dimensional transition metal dichalcogenides using $\textit{ab initio}$ approaches. Combining $\text{GW}$-Bethe-Salpeter equation…

Materials Science · Physics 2022-04-14 Xiaowei Zhang , Ting Cao

The realization of spin based devices is one of the most aspiring goals of spintronics research. Single molecule magnets are an important class of nanoscale magnetic systems with potential to realize different spintronic devices where each…

The state of the art ab initio calculations reveal the effect of a scanning tunnelling microscopy tip on magnetic properties and conductance of a benzene-adatom sandwich on Cu(001). We concentrate on a benzene-Co system interacting with a…

Materials Science · Physics 2009-11-13 Kun Tao , V. S. Stepanyuk , P. Bruno , D. I. Bazhanov , V. V. Maslyuk , M. Brandbyge , I. Mertig

We investigate the ultrafast spin dynamics in an epitaxial hcp(1100) cobalt thin film. By performing pump-probe magneto-optical measurements with the magnetization along either the easy or hard magnetic axis, we determine the…

Mesoscale and Nanoscale Physics · Physics 2021-06-30 Vivek Unikandanunni , Rajasekhar Medapalli , Eric E. Fullerton , Karel Carva , Peter M. Oppeneer , Stefano Bonetti

We performed nuclear magnetic resonance (NMR) measurements to investigate the evolution of spin-density-wave (SDW) and superconducting (SC) states upon electron doping in CaFe_{1-x}Co_{x}AsF, which exhibits an intermediate phase diagram…

Superconductivity · Physics 2012-10-04 S. Tsutsumi , N. Fujiwara , S. Matsuishi , H. Hosono

Linear and non-linear spectroscopies are powerful tools used to investigate the energetics and dynamics of electronic excited states of both molecules and crystals. While highly accurate \emph{ab initio} calculations of molecular spectra…

Materials Science · Physics 2019-09-26 Alan M. Lewis , Timothy C. Berkelbach

Spin dynamics of assemblies of magnetic nanomolecules and nanoclusters can be made coherent by inserting the sample into a coil of a resonant electric circuit. Coherence is organized through the arising feedback magnetic field of the coil.…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 V. I. Yukalov , V. K. Henner , E. P. Yukalova

Phonon-driven $s$-wave superconductivity is fundamentally antagonistic to uniform magnetism, and field-induced suppression of the critical temperature is one of its canonical signatures. Examples of the opposite are unique and require…

Superconductivity · Physics 2024-05-10 Wuzhang Fang , M. Haim , K. D. Belashchenko , M. Khodas , I. I. Mazin

The spin-flip rate that couples dark and bright excitons in self-assembled quantum dots is obtained from time-resolved spontaneous emission measurements in a modified local density of optical states. Employing this technique, we can…

Other Condensed Matter · Physics 2010-03-18 Jeppe Johansen , Brian Julsgaard , Søren Stobbe , Jørn M. Hvam , Peter Lodahl

The occurrence of a noncollinear magnetic structure at a Mn monolayer grown epitaxially on Fe(100) is predicted theoretically, using spinor density-functional theory, and observed experimentally, using x-ray magnetic circular dichroism…

We use inelastic neutron scattering to study the fate of the two spin resonance modes in underdoped superconducting NaFe$_{1-x}$Co$_x$As ($x=0.0175$) under applied magnetic fields. While an applied in-plane magnetic field of $B=12$ T only…

Superconductivity · Physics 2018-08-15 Yu Song , Guotai Tan , Chenglin Zhang , Rasmus Toft-Petersen , Rong Yu , Pengcheng Dai

We combine top-down and bottom-up nanolithography to optimize the coupling of small molecular spin ensembles to $1.4$ GHz on-chip superconducting resonators. Nanoscopic constrictions, fabricated with a focused ion beam at the central…

Recent radio frequency scanning tunneling spectroscopy (rf-STS) experiments have demonstrated nuclear and electron spin excitations up to $\pm12\hbar$ in a single molecular spin quantum dot (qudot). Despite the profound experimental…

Fine details of the excitation spectrum of the two-dimensional spin-gap magnet PHCC are revealed by electron spin resonance investigations. The values of anisotropy parameters and the orientations of the anisotropy axes are determined by…

Strongly Correlated Electrons · Physics 2012-02-23 V. N. Glazkov , T. S. Yankova , J. Sichelschmidt , D. Hüvonen , A. Zheludev

Spin-dependent transport measurements through a double quantum dot are a valuable tool for detecting both the coherent evolution of the spin state of a single electron as well as the hybridization of two-electron spin states. In this paper,…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 F. H. L. Koppens , C. Buizert , I. T. Vink , K. C. Nowack , T. Meunier , L. P. Kouwenhoven , L. M. K. Vandersypen

The magnetic excitations in the stripe phase of high-T_c superconductors are investigated in a model of spin ladders which are effectively coupled via charged stripes. Starting from the effective single-triplon model for the isolated spin…

Superconductivity · Physics 2016-08-16 G. S. Uhrig , K. P. Schmidt , M. Grüninger

We present a comprehensive inelastic neutron scattering study of the magnetic excitations in twin-free YBa(2)Cu(3)O(6.6) (Tc=61 K) for 5 K < T < 290 K. Taking full account of the instrumental resolution, we derive analytical model functions…

Superconductivity · Physics 2010-06-17 V. Hinkov , B. Keimer , A. Ivanov , P. Bourges , Y. Sidis , C. D. Frost

We report NMR study on the spin correlations in the spin-cluster based mineral Na$_2$Cu$_3$O(SO$_4$)$_3$ with magnetic fields ranged from 1 T to 33 T. The long-range magnetic order is observed from both the sudden spectral broadening at…

Strongly Correlated Electrons · Physics 2023-06-27 Long Ma , J. X. Li , L. S. Ling , Y. Y. Han , L. Zhang , L. Hu , W. Tong , C. Y. Xi , Li Pi