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Electron paramagnetic resonance signal parameters of TEMPO dichlorotriazine and TEMPO maleimide spin labels attached to protein human serum albumin molecules have been monitored at various temperatures, salts and sucrose concentrations. The…

生物物理 · 物理学 2021-10-28 Sergei P. Rozhkov , Andrey S. Goryunov

Superconductors without inversion symmetry in their crystal structure are known to exhibit unconventional properties. Recently, based on the measured temperature dependence of the magnetic field penetration depth, superconductivity in…

超导电性 · 物理学 2021-09-08 Gabriel Kuderowicz , Paweł Wójcik , Bartlomiej Wiendlocha

Magnetization and susceptibility studies on single crystals of the pyrochlore Ho$_{2}$Ti$_{2}$O$_{7}$ are reported for the first time. Magnetization isotherms are shown to be qualitatively similar to that predicted by the nearest neighbor…

无序系统与神经网络 · 物理学 2009-11-07 A. L. Cornelius , J. S. Gardner

We derive a simple system of equations to describe the magnetization relaxation of a molecular spin in weak interaction with a thermal bath for the whole temperature domain. Using this for the intermediate temperature domain where the…

材料科学 · 物理学 2022-12-27 Le Tuan Anh Ho , Liviu Ungur , Liviu F. Chibotaru

A large fraction of quantum science and technology requires low-temperature environments such as those afforded by dilution refrigerators. In these cryogenic environments, accurate thermometry can be difficult to implement, expensive, and…

应用物理 · 物理学 2020-07-07 C. A. Potts , V. A. S. V. Bittencourt , S. Viola Kusminskiy , J. P. Davis

We report temperature and density dependences of the spin susceptibility of strongly interacting electrons in Si inversion layers. We measured (i) the itinerant electron susceptibility $\chi^*$ from the Shubnikov-de Haas oscillations in…

强关联电子 · 物理学 2018-10-09 V. M. Pudalov , A. Yu. Kuntsevich , M. E. Gershenson , I. S. Burmistrov , M. Reznikov

Spin-dependent transport at heavy metal/magnetic insulator interfaces is at the origin of many phenomena at the forefront of spintronics research. A proper quantification of the different interfacial spin conductances is crucial for many…

We present an accurate quantum mechanical study of molecule-molecule collisions in the presence of a magnetic field. The work focusses on the analysis of elastic scattering and spin relaxation in collisions of O2(3Sigma_g) molecules at cold…

原子物理 · 物理学 2012-02-06 T. V. Tscherbul , Yu. V. Suleimanov , V. Aquilanti , R. V. Krems

We report first-principles all-electron density-functional based studies of the electronic structure, magnetic ordering and anisotropy for the V$_{15}$ molecular magnet. From these calculations, we determine a Heisenberg Hamiltonian with…

材料科学 · 物理学 2009-11-07 Jens Kortus , C. Stephen Hellberg , Mark R. Pederson

It is proposed that nuclear (or electron) spins in a trapped molecule would be well isolated from the environment and the state of each spin can be measured by means of mechanical detection of magnetic resonance. Therefore molecular traps…

量子物理 · 物理学 2007-05-23 Haiqing Wei , Xin Xue

We investigate the fundamental mechanism of spin phonon coupling in the negatively charged nitrogen vacancy center $(\mathrm{NV}^-)$ in diamond in order to calculate the spin lattice relaxation time $T_1$ and its temperature dependence from…

介观与纳米尺度物理 · 物理学 2018-12-31 Johannes Gugler , Thomas Astner , Andreas Angerer , Jörg Schmiedmayer , Johannes Majer , Peter Mohn

The transverse and longitudinal relaxation rates 1/$T_2$ and 1/$T_1$ of $^{55}$Mn in molecular cluster magnet Mn$_{12}$Ac have been measured al low temperatures down to 200mK and in the fields upto 9T. Both of 1/$T_2$ and 1/$T_1$ exhibit…

凝聚态物理 · 物理学 2009-11-07 T. Goto , T. Koshiba , T. Kubo , K. Awaga

Thermodynamics is derived rigorously for the 1D supersymmetric {\it t-J} model and its SU($K,1$) generalization with inverse-square exchange. The system at low temperature is described in terms of spinons, antispinons, holons and antiholons…

凝聚态物理 · 物理学 2009-10-28 Yoshio Kuramoto , Yusuke Kato

Strong magnetic field gradients can produce a synthetic spin-orbit interaction that allows for high fidelity electrical control of single electron spins. We investigate how a field gradient impacts the spin relaxation time T_1 by measuring…

介观与纳米尺度物理 · 物理学 2019-04-23 F. Borjans , D. M. Zajac , T. M. Hazard , J. R. Petta

We present magnetization measurements on oriented powder of ZnCu$_{3}$(OH)$_{6}$Cl$_{2}$ along and perpendicular to the orienting field. We find a dramatic difference in the magnetization between the two directions. It is biggest at low…

强关联电子 · 物理学 2009-04-21 Oren Ofer , Amit Keren

The finite temperature and finite density dependence of the neutron-proton mass difference is analysed in a purely hadronic framework where the $\rho-\omega $ mixing is crucial for this isospin symmetry breakdown. The problem is handled…

高能物理 - 唯象学 · 物理学 2016-08-15 H. R. Christiansen , L. N. Epele , H. Fanchiotti , C. A. García Canal

The isospin dependence of the spin-orbit potential is investigated for an effective Skyrme-like energy functional suitable for density dependent Hartree-Fock calculations. The magnitude of the isospin dependence is obtained from a fit to…

核理论 · 物理学 2016-09-08 M. M. Sharma , G. Lalazissis , J. König , P. Ring

The effect of spin mixing due to thermal spin waves and temperature dependence of hot electron spin polarization to the collector current in a spin-valve transistor has been theoretically explored. We calculate the collector current as well…

凝聚态物理 · 物理学 2009-11-07 Jisang Hong , P. S. Anil Kumar

We theoretically explore the generation of spin current driven by a temperature gradient in a junction between a chiral insulator and a normal metal. Based on the gyromagnetic response induced by microscopic acoustic-phonon-mediated lattice…

介观与纳米尺度物理 · 物理学 2025-08-20 Naoki Nishimura , Takumi Funato , Mamoru Matsuo , Takeo Kato

Spin relaxation between the two lowest-lying spin-states has been studied in the S=4 single molecule magnet Ni$_4$ under steady state conditions of low amplitude and continuous microwave irradiation. The relaxation rate was determined as a…

介观与纳米尺度物理 · 物理学 2008-07-22 G. de Loubens , D. A. Garanin , C. C. Beedle , D. N. Hendrickson , A. D. Kent