Results 31 to 40 of about 378,632 (352)

Magnetic dephasing in mesoscopic spin glasses [PDF]

, 2013
We have measured Universal Conductance Fluctuations in the metallic spin glass Ag:Mn as a function of temperature and magnetic field. From this measurement, we can access the phase coherence time of the electrons in the spin glass.
Bäuerle, Christopher, Capron, Thibaut, Carpentier, David, Forestier, Guillaume, Lévy, Laurent P., Meunier, Tristan, Peaucelle, Christophe, Perrat-Mabilon, Angela, Saminadayar, Laurent   +8 more
core   +3 more sources

Phase Transitions between Different Spin-Glass Phases and between Different Chaoses in Quenched Random Chiral Systems

, 2017
The left-right chiral and ferromagnetic-antiferromagnetic double spin-glass clock model, with the crucially even number of states q=4 and in three dimensions d=3, has been studied by renormalization-group theory.
Berker, A. Nihat, Caglar, Tolga
core   +1 more source

Toward understanding the dimensional crossover of canonical spin-glass thin films

Frontiers in Physics
Spin-glass thin films exhibit many features different from the bulk. The freezing temperatures of spin-glass films are suppressed for reduced thickness and follow the Kenning relation. The dynamics are altered near the vacuum interface.
Qiang Zhai, Raymond L. Orbach
doaj   +1 more source

Magnetic properties of nickel carbide nanoparticles with enhanced coercivity

AIP Advances, 2018
Rhombohedral nickel carbide (Ni3Cx, x=0.7, 1.2 and 1.5) nanoparticles (∼ 110 nm) with enhanced magnetic coercivity (HC up to 1.3 kOe) at temperature below the spin-glass freezing (Tf) have been demonstrated.
Meiying Xing, Jeotikanta Mohapatra, Fanhao Zeng, J. Ping Liu   +3 more
doaj   +1 more source

Coercivity and Exchange Bias in Ti-Doped Maghemite Nanoparticles

Magnetochemistry, 2022
Ti-doped maghemite nanoparticles of average crystallite size 12.9 nm were synthesized using the sol–gel method. The XRD profile mainly showed the presence of maghemite phase with very small phases of TiO2 (rutile and anatase).
Venkatesha Narayanaswamy, Imaddin A. Al-Omari, Aleksandr S. Kamzin, Hafsa Khurshid, Abbas Khaleel, Bashar Issa, Ihab M. Obaidat   +6 more
doaj   +1 more source

Spin Glasses

Physics of Novel Materials, 1979
59 pages, 12 ...
openaire   +4 more sources

Ordering of the Heisenberg Spin Glass in High Dimensions

, 2003
Ordering of the Heisenberg spin glass with the nearest-neighbor Gaussian coupling is investigated by equilibrium Monte Carlo simulations in four and five dimensions.
B. Coluzzi, D. Imagawa, D. Stauffer, Daisuke Imagawa, F. Matsubara, F. Matsubara, F. Matsubara, H. G. Katzgraber, H. G. Katzgraber, H. Kawamura, H. Kawamura, H. Kawamura, H. Kawamura, H. Kawamura, H. Kawamura, H. Yoshino, Hikaru Kawamura, J. A. Olive, J. R. Banavar, K. Binder, K. Hukushima, K. Hukushima, K. Hukushima, M. Cieplak, P. Reed, P. W. Anderson, R. Botet, S. Endoh, T. Nakamura, W. L. McMillan   +29 more
core   +1 more source

Multifractality in spin glasses

Proceedings of the National Academy of Sciences
We unveil the multifractal behavior of Ising spin glasses in their low-temperature phase. Using the Janus II custom-built supercomputer, the spin-glass correlation function is studied locally. Dramatic fluctuations are found when pairs of sites at the same distance are compared.
Janus Collaboration, Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Pemartin, I. Gonzalez-Adalid, Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Sudupe, A. Muñoz, Navarro, D., Paga, I., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., Tarancon, A., Yllanes, D.   +23 more
openaire   +6 more sources

Chirality scenario of the spin-glass ordering

, 2010
Detailed account is given of the chirality scenario of experimental spin-glass transitions. In this scenario, the spin glass order of weakly anisotropic Heisenberg-like spin-glass magnets including canonical spin glasses are essentially chirality driven.
Ballesteros H. G., Banavar J. R., Batrouni G. G., Berthier L., Bhatt R. N., Binder K., Bokil H. S., Bouchiat H., Bray A. J., Bray A. J., Campbell I., Campbell I. A., Campbell I. A., Campos I., Canella V., Capriotti L., Carpentier D., Chamberlin R. V., Chang M., Coles B. R., Cugliandolo L. F., de Almeida J. R. L., de Courtenary N., de Courtenay N., Deguchi H., Edwards S. F., Endoh S., Fernandez L. A., Fert A., Fischer K. H., Fisher D. S., Gabay M., Granato E., Granato E., Granato E., Gunnarsson K., Hagiwara M., Hasenbusch M., Hasenbusch M., Horiguchi T., Hukushima K., Hukushima K., Hukushima K., Hérisson D., Imagawa D., Imagawa D., Jorg T., Kageyama T., Katsumata K., Katzgraber H., Katzgraber H. G., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kawamura H., Kennig G. G., Kosterlitz J. M., Kotliar G., Kotliar G., Lee L. W., Lee L. W., Lee S., Loison D., Lévy L. P., Mathieu R., Matsubara F., Matsubara F., Matsubara F., Matsuda A., Matsumoto M., Matsuura M., Mattsson J., Maucourt J., McMillan W. L., Miyashita S., Murayama S., Nakamura T., Ney-Nifle M., Ogielski A. T., Olive J. A., Ozeki Y., Parisi G., Petit D., Petit D., Picco M., Picco M., Pixley J. H., Pureur P., Ray P., Sherrington D., Simpson M., Taniguchi T., Taniguchi T., Taniguchi T., Tatara G., Uda T., Viet D. X., Vincent E., Vincnet E., Weigel M., Wengel C., Wolff Fabris F., Xu H.-J., Yamamoto T., Yamanaka K., Yoshino H., Young A. P.   +120 more
core   +1 more source

The simplest spin glass

Nuclear Physics B, 1984
We study a system of Ismg spins with quenched random mfimte ranged p-spin interactions For p -* co, we can solve thts model exactly either by a direct mlcrocanomcal argument, or through the introduction of rephcas and Pansl's ultrametnc ansatz for rephca symmetry breaking, or by means of TAP mean field equat,ons Although the model is extremely simple ...
Marc Mézard, D. J. Gross
openaire   +3 more sources