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Related papers: Persistence of slow dynamics in Tb(OETAP)$_2$ sing…

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The spin dynamics in [TbPc$_{2}$]$^{0}$ and [DyPc$_{2}$]$^{0}$ single molecule magnets have been investigated by means of muon and nuclear spin-lattice relaxation rate measurements. The correlation time for the spin fluctuations was found…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 F. Branzoli , M. Filibian , P. Carretta , S. Klytaskaya , M. Ruben

Magnetization, AC susceptibility and $\mu$SR measurements have been performed in neutral phthalocyaninato lanthanide ([LnPc$_2]^0$) single molecule magnets in order to determine the low-energy levels structure and to compare the…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 F. Branzoli , P. Carretta , M. Filibian , M. J. Graf , S. Klyatskaya , M. Ruben , F. Coneri , P. Dhakal

Single molecular magnets (SMMs) and Metal-Organic Frameworks (MOFs) attract significant interest due to their potential in quantum information processing, scalable quantum computing, and extended lifetimes and coherence times. The limiting…

Quantum Physics · Physics 2024-07-12 Nosheen Younas , Yu Zhang , Andrei Piryatinski , Eric R Bittner

We report coherent manipulation of S=10 Fe$_{8}$ single-molecule magnets. The temperature dependence of the spin decoherence time $T_2$ measured by high frequency pulsed electron paramagnetic resonance indicates that strong spin decoherence…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Susumu Takahashi , Johan van Tol , Christopher C. Beedle , David N. Hendrickson , Louis-Claude Brunel , Mark S. Sherwin

We measure magnetization changes in a single crystal of the single-molecule magnet Fe8 when exposed to intense, short (<20 $\mu$s) pulses of microwave radiation resonant with the m = 10 to 9 transition. We find that radiation induces a…

Mesoscale and Nanoscale Physics · Physics 2008-03-14 M. Bal , Jonathan R. Friedman , W. Chen , M. T. Tuominen , C. C. Beedle , E. M. Rumberger , D. N. Hendrickson

Muon spin rotation and relaxation experiments in the pyrochlore iridate Eu2Ir2O7 yield a well-defined muon spin precession frequency below the metal-insulator/antiferromagnetic transition temperature TM = 120 K, indicative of long-range…

Strongly Correlated Electrons · Physics 2015-03-19 Songrui Zhao. J. M. Mackie , D. E. MacLaughlin , O. O. Bernal , J. J. Ishikawa , Y. Ohta , S. Nakatsuji

We report low-temperature muon spin relaxation/rotation (muSR) measurements on single crystals of the actinide superconductor UTe2. Below 5 K we observe a continuous slowing down of magnetic fluctuations that persists through the…

We present a first-principles investigation of spin-phonon relaxation in a molecular crystal of Co(II) single-ion magnets. Our study combines electronic structure calculations with machine-learning force fields and unravels the nature of…

Materials Science · Physics 2020-05-27 Alessandro Lunghi , Stefano Sanvito

Exponential and power law temperature dependences are widely used to fit experimental data of magnetic relaxation time in single molecular magnets. We derived a theory to show how these rules arise from the underling relaxation mechanisms…

Mesoscale and Nanoscale Physics · Physics 2020-09-16 Lei Gu , Ruqian Wu

We report magnetization, susceptibility, electrical transport, and electron spin resonance (ESR) studies of single crystals of beta-AgNpO2(SeO3). Here the valence of the Np sites is expected to be Np(V). We observe a magnetic transition…

Other Condensed Matter · Physics 2009-11-10 E. Jobiliong , Y. Oshima , J. S. Brooks , T. E. Albrecht-Schmitt

Electron tunneling in ferromagnetic single-electron transistors is considered theoretically in the sequential tunneling regime. A new formalism is developed, which operates in a two-dimensional space of states, instead of one-dimensiona…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 J. Barnas , J. Martinek , G. Michalek , B. R. Bulka , A. Fert

We report a study of the geometrically frustrated magnetic material Tb2Sn2O7 by the positive muon spin relaxation technique. No signature of a static magnetically ordered state is detected while neutron magnetic reflections are observed in…

Strongly Correlated Electrons · Physics 2009-11-11 P. Dalmas de Reotier , A. Yaouanc , L. Keller , A. Cervellino , B. Roessli , C. Baines , A. Forget , C. Vaju , P. C. M. Gubbens , A. Amato , P. J. C. King

Using a spin-polarized muon beam we were able to capture magnetic dynamics in an amorphous niobium pentoxide thin film. Muons are used to probe internal magnetic fields produced by defects. Magnetic fluctuations could be described by the…

We present the results of a systematic investigation of the magnetic properties of the three-dimensional Kondo topological insulator SmB6 using magnetization and muon-spin relaxation/rotation (muSR) measurements. The muSR measurements…

The combination of spin-orbit coupling driven effects and multiferroic tunneling properties was explored experimentally in thin Pt/Co/BTO/LSMO multilayers. The presence of a Pt heavy metal allows for the spin current-induced magnetization…

Mesoscale and Nanoscale Physics · Physics 2024-11-01 Jakub Pawlak , Witold Skowroński , Piotr Kuświk , Félix Casanova , Marek Przybylski

The formation of the two: injected ("coherent") and "thermally" excited, different in energies magnon subsystems and the influence of its interaction with phonons and between on drag effect under spin Seebeck effect conditions in the…

Other Condensed Matter · Physics 2017-06-08 I. I. Lyapilin , M. S. Okorokov

We introduce a new quantum embedding method to explore spin-phonon interactions in molecular magnets. This technique consolidates various spin/phonon couplings into a limited number of collective degrees of freedom, allowing for a fully…

Quantum Physics · Physics 2024-07-11 Nosheen Younas , Yu Zhang , Andrei Piryatinski , Eric R Bittner

We describe a compact, robust and versatile system for studying magnetic dynamics in a spinor Bose-Einstein condensate. Condensates of 87 Rb are produced by all-optical evaporation in a 1560 nm optical dipole trap, using a non-standard…

Single adatoms offer an exceptional playground for studying magnetism and its associated dynamics at the atomic scale. Here we review recent results on single adatoms deposited on metallic substrates, based on time-dependent density…

Mesoscale and Nanoscale Physics · Physics 2018-08-29 Julen Ibañez-Azpiroz , Manuel dos Santos Dias , Stefan Blügel , Samir Lounis

We report muon spin relaxation and inelastic neutron measurements on the Heusler system YbPd$_2$Sn. Localised anisotropic and quasi-elastic Yb magnetic fluctuations are observed below $T = 150$K. Both $\mu$SR and neutron data indicate a…

Strongly Correlated Electrons · Physics 2009-11-07 A. Amato , B. Roessli , P. Fischer , N. Bernhoeft , A. Stunault , C. Baines , A. Dönni , H. Sugawara
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