English
Related papers

Related papers: Maximum allowable temperature during quench in Nb3…

200 papers

Heating caused by electrons with excess kinetic energy has been investigated in a magnetic two-dimensional electron gas, M2DEG, in HgMnTe/HgCdTe(001) quantum wells. The temperature of the Mn ions, T_Mn, has been determined by the node…

Strongly Correlated Electrons · Physics 2007-05-23 Y. S. Gui , C. R. Becker , J. Liu , M. Koenig , V. Daumer , M. N. Kiselev , H. Buhmann , L. W. Molenkamp

We study the phase diagram of spin-triplet superconductors, considering the effect of the external magnetic field on the electrons' spins. For a given symmetry of the order parameter and a generic orientation of the field, we find that the…

Superconductivity · Physics 2025-03-27 Thomas Bernat , Julia S. Meyer , Manuel Houzet

New accelerator magnet technology based on Nb3Sn superconductor is being developed at Fermilab since late 90's. Six short dipole models, seven short quadrupole models and numerous individual dipole and quadrupole coils have been built and…

Accelerator Physics · Physics 2011-08-10 A. V. Zlobin

Hotspots on the surface of accreting neutron stars have been directly observed via pulsations in the lightcurves of X-ray pulsars. They are thought to occur due to magnetic channelling of the accreted fuel to the neutron star magnetic…

High Energy Astrophysical Phenomena · Physics 2021-07-14 A. J. Goodwin , A. Heger , F. R. N. Chambers , A. L. Watts , Y. Cavecchi

From experimental observations of limiting temperatures in heavy ion collisions we derive Tc, the critical temperature of infinite nuclear matter. The critical temperature is 16.6 +- 0.86 MeV. Theoretical model correlations between Tc, the…

Nuclear Experiment · Physics 2009-11-07 J. B. Natowitz , K. Hagel , Y. Ma , M. Murray , L. Qin , R. Wada , J. Wang

This study experimentally investigates the temperature dependence of superheating field, Hsh, of niobium. Accurately determining this field is important both to test theory and to understand gradient limits in superconducting cavities for…

Superconductivity · Physics 2010-02-18 N. R. A. Valles , M. U. Liepe

Nb3Sn superconducting strands are the most practical conductors to generate high magnetic fields (12-16 T), and thus have significant applications in nuclear magnetic resonance (NMR), and great potential for fusion reactors and particle…

Materials Science · Physics 2015-11-11 Xingchen Xu , Michael D. Sumption , Xuan Peng

We used a Josephson junction as a radiation detector to look for evidence of the emission of electromagnetic radiation during magnetization avalanches in a crystal assembly of Mn_12-Acetate. The crystal assembly exhibits avalanches at…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. Bal , Jonathan R. Friedman , K. Mertes , W. Chen , E. M. Rumberger , D. N. Hendrickson , N. Avraham , Y. Myasoedov , H. Shtrikman , E. Zeldov

The magnetic susceptibility and the low-temperature specific heat of the 1-dimensional Hubbard model under the integrable open-boundary conditions are discussed through the Bethe ansatz with the string hypothesis. The contributions of the…

Strongly Correlated Electrons · Physics 2009-10-30 Ruihong Yue , Tetsuo Deguchi

We report Hall sensor measurements of the magnetic relaxation of Mn$_{12}$ acetate as a function of magnetic field applied along the easy axis of magnetization. Data taken at a series of closely-spaced temperatures between 0.24 K and 1.4 K…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 K. M. Mertes , Y. Zhong , M. P. Sarachik , Y. Paltiel , H. Shtrikman , E. Zeldov , E. Rumberger , D. N. Hendrickson

We demonstrate plasma discharges with extremely high temperature of bulk electrons at the large axially symmetric magnetic mirror device GDT (Budker Institute, Novosibirsk). According to Thomson scattering measurements, the on-axis electron…

Brownian relaxation is one of the primary mechanisms that allows magnetic nanoparticles (MNPs) to convert magnetic energy into thermal energy under an excitation magnetic field. Accurately characterizing the MNPs' magnetization dynamics…

We report results of the experimental test of the High Temperature Superconductor based fast cycling prototype accelerator magnet capable to operate up to about 300 Tesla per second field ramping rate with some 0.5 T field in the magnet…

Accelerator Physics · Physics 2022-05-04 Henryk Piekarz , Steven Hays , Bradley Claypool , Matthew Kufer , Vladimir Shiltsev

Intensive studies have been made on antiferromagnets as candidate materials for next generation memory bits due to their ultrafast dynamics reaching picosecond time scales. Recent demonstrations of electrical bidirectional switching of…

We have developed a nuclear magnetic resonance spectrometer with a series tuned input circuit for measurements on samples at millikelvin temperatures based on an integrated two-stage superconducting quantum interference device current…

Superconductivity · Physics 2009-11-13 L. V. Levitin , R. G. Bennett , A. Casey , B. P. Cowan , C. P. Lusher , J. Saunders , D. Drung , Th. Schurig

In this study, we investigate the finite-temperature magnetic properties of Sm2Fe17Nx (x = 0,3) using an effective spin model constructed based on the information obtained by first-principles calculations. We find that assuming the…

Materials Science · Physics 2021-04-05 Shogo Yamashita , Daiki Suzuki , Takuya Yoshioka , Hiroki Tsuchiura , Pavel Novák

The heat capacity of helical magnets Cu2OSeO3 and MnSi has been investigated at high pressures by the ac-calorimetric technique. Despite the differing nature of their magnetic moments, Cu2OSeO3 and MnSi demonstrate a surprising similarity…

Strongly Correlated Electrons · Physics 2015-06-17 V. A. Sidorov , A. E. Petrova , P. S. Berdonosov , V. A. Dolgikh , S. M. Stishov

Using the data from SuperKamiokande, Kamiokande and Homestake solar neutrino experiments we derive an upper bound on the magnetic moment of the neutrino and find $\mu_{\nu_e}\leq(2.2-2.3)\times 10^{-10}\mu_{B}$, within four different…

High Energy Physics - Phenomenology · Physics 2009-10-30 Joao Pulido , Ana M. Mourao

Magnetars, neutron stars thought to be with ultra-strong magnetic fields of $10^{14 - 15}$ G, are observed to be much hotter than ordinary pulsars with $\sim 10^{12}$ G, and additional heating sources are required. One possibility is…

High Energy Astrophysical Phenomena · Physics 2023-03-29 Sachiko Tsuruta , Madeline J. Kelly , Ken'ichi Nomoto , Kanji Mori , Marcus Teter , Andrew C. Liebmann

A description of the current state of the project for the study of coherent elastic neutrino-atom scattering using a tritium source and liquid helium detector is given. The project was proposed in our paper in 2019 and its main goal is to…