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Related papers: Spin reversal in Fe8 under fast pulsed magnetic fi…

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Measurements of the heat capacity C(T,H) of the one-dimensional quantum magnet TiOCl are presented for temperatures 2K < T < 300K and magnetic fields up to 5T. Distinct anomalies at 91K and 67K signal two subsequent phase transitions. The…

Strongly Correlated Electrons · Physics 2007-05-23 J. Hemberger , M. Hoinkis , M. Klemm , M. Sing , R. Claessen , S. Horn , A. Loidl

We address the temperature influence on the precessional motion of electron spins under transverse magnetic field, studied in a GaAs/AlGaAs triple quantum wells, using pump-probe Kerr rotation. In the presence of an applied in-plane…

Mesoscale and Nanoscale Physics · Physics 2018-05-18 S. Ullah , F. C. D. Moraes , G. M. Gusev , A. K. Bakarov , F. G. G. Hernandez

We have performed an extensive muon spin relaxation study of the well known (Fe$_{1-x}$Mn$_{x}$)$_{75}$P$_{16}$B$_6$Al$_3$ reentrant spin glass. We find a strong increase of the dynamic as well as static muon depolarization rate at the…

Disordered Systems and Neural Networks · Physics 2009-09-25 M. J. P. Gingras , M. Larkin , I. Mirebeau , W. D. Wu , K. Kojima , G. M. Luke , B. Nachumi , Y. J. Uemura

We have investigated the magnetic properties of carbon powders which consist of nanodisks, nanocones, and a small fraction of carbon-black particles. Magnetization measurements were carried out using a superconducting quantum interference…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Jozef Cernak , Geir Helgesen , Jozef Kovac , Arne T. Skjeltorp , Josef Voltr

Time-resolved pump-probe measurements were made at variable heat accumulation in Co/Pd superlattices. Heat accumulation increases the baseline temperature and decreases the equilibrium magnetization. Transient ultrafast demagnetization…

Mesoscale and Nanoscale Physics · Physics 2018-05-09 F. Hoveyda , E. Hohenstein , R. Judge , S. Smadici

Energy-efficient switching of nanoscale magnets requires the application of a time-varying magnetic field characterized by microwave frequency. At finite temperatures, even weak thermal fluctuations create perturbations in the magnetization…

Mesoscale and Nanoscale Physics · Physics 2023-12-19 Mohammad H. A. Badarneh , Grzegorz J. Kwiatkowski , Pavel F. Bessarab

Laves RFe2 compounds, where R is a rare earth, exhibit technologically relevant properties associated with the interplay between their lattice geometry and magnetism. We apply ab~initio calculations to explore how magnetic properties of Fe…

Materials Science · Physics 2022-08-10 Ondrej Sipr , Sergey Mankovsky , Jiri Vackar , Hubert Ebert , Alberto Marmodoro

We present measurements on the single molecule magnet Fe8 in the presence of pulsed microwave radiation at 118 GHz. The spin dynamics is studied via time resolved magnetization experiments using a Hall probe magnetometer. We investigate the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 K. Petukhov , S. Bahr , W. Wernsdorfer , A. -L. Barra , V. Mosser

We study finite temperature properties of a generic spin-orbital model relevant to transition metal compounds, having coupled quantum Heisenberg-spin and Ising-orbital degrees of freedom. The model system undergoes a phase transition,…

Strongly Correlated Electrons · Physics 2009-11-20 C. -C. Chen , B. Moritz , J. van den Brink , T. P. Devereaux , R. R. P. Singh

We present magnetoresistivity measurements on the heavy-fermion superconductor UTe$_{2}$ in pulsed magnetic fields $\mu_0H$ up to 68~T and temperatures $T$ from 1.4 to 80~K. Magnetic fields applied along the three crystallographic…

We report on magnetoconductance measurements through a weakly coupled quantum dot, containing roughly 900 electrons, in a wide magnetic field range from 0 T to 12 T. We find modulations of the conductance resonances in the quantum Hall…

We investigate the quantum evolution of spin states of a single molecular magnet in a local electric field. The decoherence of a $\texttt{\{}\emph{Cu}_3\texttt{\}}$ single molecular magnet weakly coupled to a thermal bosonic environment can…

Quantum Physics · Physics 2015-06-18 Xiang Hao , Xiaoqun Wang , Chen Liu , Shiqun Zhu

The time decay of the thermo-remanent magnetization (TRM) in Fe-Cr giant magnetoresistive (GMR) multilayers has been investigated. The magnetization in these multilayers relaxes as a function of time after being cooled in a small magnetic…

Materials Science · Physics 2007-05-23 R. S. Patel , A. K. Majumdar , A. K. Nigam

We report experimental studies of crystals of Mn12 molecular magnetic clusters in pulsed magnetic fields with sweep rates up to 4x10^3 T/s. The steps in the magnetization curve are observed at fields that are shifted with respect to the…

Other Condensed Matter · Physics 2009-11-10 J. Vanacken , S. Stroobants , M. Malfait , V. V. Moshchalkov , M. Jordi , J. Tejada , R. Amigo , E. M. Chudnovsky , D. A. Garanin

We present experimental results and macrospin simulations of the switching characteristics of orthogonal spin-transfer devices incorporating an out-of-plane magnetized polarizing layer and an in-plane magnetized spin valve device at…

Mesoscale and Nanoscale Physics · Physics 2017-11-30 Graham E. Rowlands , Colm A. Ryan , Li Ye , Laura Rehm , Daniele Pinna , Andrew D. Kent , Thomas A. Ohki

The metamagnetic transition between the antiferromagnetic and paramagnetic state in UIrGe has been studied at various temperatures by magnetization, heat capacity and magnetocaloric-effect measurements on a single crystal in static and…

Electrical conductivity, thermopower and magnetic properties of Fe-intercalated Fe0.33VSe2 has been reported between 4.2K - 300K. We observe a first order transition in the resistivity of the sintered pellets around 160K on cooling. The…

Materials Science · Physics 2009-11-13 C. S. Yadav , A. K. Rastogi

Information can be stored in magnetic materials by encoding with the direction of the magnetic moment of elements. A figure of merit for these systems is the energy needed to change the information rewrite the storage by changing the…

It is shown that at finite temperature and in the presence of magnetic sources magnetic fields are screened. This is proven within the framework of classical transport theory both for the Abelian and non-Abelian plasmas. Magnetic screening…

High Energy Physics - Phenomenology · Physics 2009-10-30 Cristina Manuel

Low-temperature thermodynamics of the classical frustrated ferromagnetic spin chain near the ferromagnet-helimagnet transition point is studied by means of mapping to the continuum limit. The calculation of the partition function and spin…

Statistical Mechanics · Physics 2015-05-19 D. V. Dmitriev , V. Ya. Krivnov