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Related papers: Electron paramagnetic resonance study of ErSc2NC80

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Erbium implanted silicon as a quantum technology platform has both telecommunications and integrated circuit (IC) processing compatibility. The electron spin coherence time of Er implanted Si with an Er concentration of 3X1017 cm-3 is…

Colossal magnetoresistance (CMR) emerges from intertwined spin and charge degrees of freedom in the form of ferromagnetic clusters also known as trapped magnetic polarons. As a result, CMR is rarely observed in antiferromagnetic materials.…

Strongly Correlated Electrons · Physics 2022-01-25 J. C. Souza , S. M. Thomas , E. D. Bauer , J. D. Thompson , F. Ronning , P. G. Pagliuso , P. F. S. Rosa

Submillimeter and millimeter wave electron spin resonance (ESR) measurements of the pi-d correlated organic conductor lambda-(BETS)2Fe0.6Ga0.4Cl4 have been performed. Antiferromagnetic resonance (AFMR) has been observed in the insulating…

We report a combined study by optical absorption (OA) and electron paramagnetic resonance (EPR) spectroscopy on the E'-alpha point defect in amorphous silicon dioxide (a-SiO2). This defect has been studied in beta-ray irradiated and…

Materials Science · Physics 2008-05-15 G. Buscarino , R. Boscaino , S. Agnello , F. M. Gelardi

We report the results of magnetic, heat-capacity, electrical and magnetoresistance measurements on Ho4RhAl and Er4RhAl, characterized by 3 sites for rare-earths (R). Antiferromagnetic ordering sets in at (T_N =) about 8.8 and 4.0 K…

Strongly Correlated Electrons · Physics 2021-08-18 Ram Kumar , E. V. Sampathkumaran

When a composite containing nonlinear dielectric particles suspended in a host medium is subjected to a sinusoidal alternating current (ac) electric field, the dielectric response of the composite will generally consist of ac fields at…

Soft Condensed Matter · Physics 2007-05-23 J. P. Huang

Integrated magnetic sensors that allow simultaneous EPR and magnetization measurements have been developed to study single molecule magnets. A high frequency microstrip resonator has been integrated with a micro-Hall effect magnetometer.…

Materials Science · Physics 2009-11-11 G. de Loubens , G. D. Chaves , A. D. Kent , C. Ramsey , E. del Barco , C. Beedle , D. N. Hendrickson

Large surface to volume ratios of semiconductor nanocrystals cause susceptibility to charge trapping, which can modify luminescence yields and induce single-particle blinking. Optical spectroscopies cannot differentiate between bulk and…

Mesoscale and Nanoscale Physics · Physics 2013-03-08 Kipp J. van Schooten , Jing Huang , William J. Baker , Dmitri V. Talapin , Christoph Boehme , John M. Lupton

X-band electron spin resonance (ESR) spectroscopy has been performed for gold nanorods (AuNRs) of four different sizes covered with a diamagnetic stabilizing component, cetyltrimethylammmonium bromide. The ESR spectra show ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2015-02-18 Yuji Inagaki , Tatsuya Kawae , Natsuko Sakai , Yuta Makihara , Hiroaki Yonemura , Sunao Yamada

We present detailed angle-dependent single crystal electron paramagnetic resonance (EPR) data for field rotations in the hard plane of the S=10 single molecule magnet Mn12-acetate. A clear four-fold variation in the resonance positions may…

Materials Science · Physics 2009-11-10 S. Hill , R. S. Edwards , S. I. Jones , J. M. North , N. S. Dalal

We performed magnetic field and frequency tunable electron paramagnetic resonance spectroscopy of an Er$^{3+}$ doped Y$_2$SiO$_5$ crystal by observing the change in flux induced on a direct current-superconducting quantum interference…

The structure and vibrational spectrum of Gd3N@C80 is studied through Raman and inelastic electron tunneling spectroscopy (IETS) as well as density functional theory (DFT) and universal force field (UFF) calculations. Hindered rotations,…

The ESR (Electron Spin Resonance) spectrum of the XXZ spin chain with finite length shows a double-peak structure at high temperatures around the EPR (Electron Paramagnetic Resonance) resonance frequency. This fact has been pointed out by…

Statistical Mechanics · Physics 2017-01-11 Hiroki Ikeuchi , Hans De Raedt , Sylvain Bertaina , Seiji Miyashita

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 electrical field gradient (EFG), measured e.g. in perturbed angular correlation (PAC) experiments, gives particularly useful information about the interaction of probe atoms like 111In / 111Cd with other defects. The interpretation of…

Materials Science · Physics 2016-08-31 H. Hoehler , N. Atodiresei , K. Schroeder , R. Zeller , P. H. Dederichs

ESR-study of the Ni-doped spin-Peierls compound CuGeO3 has been performed in the frequency range 9-75 GHz. At low temperatures the g-factor is smaller than the value expected for Cu- and Ni-ions. This anomaly is explained by the formation…

Strongly Correlated Electrons · Physics 2012-02-02 V. N. Glazkov , A. I. Smirnov , O. A. Petrenko , D. Mck. Paul , A. G. Vetkin , R. M. Eremina

We report results of a multi-frequency (0.8-60 GHz) electron spin resonance study of the spin dynamics in the quasi-2D square lattice antiferromagnet Ba$_2$MnGe$_2$O$_7$ both in antiferromagnetically ordered and paramagnetic phases. We…

Strongly Correlated Electrons · Physics 2024-01-02 V. N. Glazkov , Yu. V. Krasnikova , I. K. Rodygina , H. -A. Krug von Nidda , T. Masuda

Electron spin resonance and magnetization data in magnetic fields up to 55 T of a novel multicenter paramagnetic molecular complex [L_2Ni_4(N_3)(O_2C Ada)_4](Cl O_4) are reported. In this compound, four Ni centers each having a spin S = 1…

Multifrequency pulsed electron paramagnetic resonance (EPR) spectroscopy using S-, X-, Q- and W-Band frequencies (3.6, 9.7, 34, and 94 GHz, respectively) was employed to study paramagnetic coordination defects in undoped hydrogenated…

Materials Science · Physics 2011-09-20 M. Fehr , A. Schnegg , B. Rech , K. Lips , O. Asthakov , F. Finger , G. Pfanner , C. Freysoldt , J. Neugebauer , R. Bittl , C. Teutloff

The magnetic spin dynamics and optical properties of EuZn$_2$P$_2$ are studied. Single crystals grown by the Sn-flux method crystallize in the $P\overline{3}m1$ (No.~164) space group and order antiferromagnetically at $T_N=23.5$~K.…