Results 11 to 20 of about 90,915 (308)

Eminuscent phase in frustrated magnets: a challenge to quantum spin liquids

open access: yesNature Communications, 2022
A spin-glass forms in frustrated magnetic systems when at low temperatures impurity sites “freeze” into a random spin configuration. Here, by looking back at previous experimental results, Syzranov and Ramirez show that the glass-transition temperature ...
S. V. Syzranov, A. P. Ramirez
doaj   +1 more source

Structural magnetic glassiness in the spin ice Dy_{2}Ti_{2}O_{7}

open access: yesPhysical Review Research, 2022
The origin and nature of glassy dynamics presents one of the central enigmas of condensed-matter physics across a broad range of systems ranging from window glass to spin glasses.
Anjana M. Samarakoon   +16 more
doaj   +1 more source

Quantum spin glasses [PDF]

open access: yes, 2008
10 pages LaTeX (Springer Lecture Notes style file included), 1 eps-figure; Review article for XIV Sitges Conference: Complex Behavior of Glassy ...
Rieger, H., Young, A. P.
openaire   +2 more sources

Frustration-Induced Relaxation in Polycrystalline Nd1- xSrxCoO3 (x=0.10, 0.15, 0.20)

open access: yesChemical Engineering Transactions, 2018
This paper attempts to examine the details on the magnetic relaxation and aging effect of cobaltite Nd1- xSrxCoO3 (x=0.10, 0.15, 0.20). To this end, a series of polycrystalline Nd1-xSrxCoO3 samples were prepared in the traditional way, and their ...
Yiyun Yang
doaj   +1 more source

Influence of Concentration Fluctuations on Relaxation Processes in Spin Glasses

open access: yesQuantum Beam Science, 2018
Using the unique combination of atomically resolved atom probe tomography (APT) and volume averaged neutron (resonance) spin echo (NRSE and NSE) experiments, the influence of nano-scaled clusters on the spin relaxation in spin glasses was studied.
Julia N. Wagner   +5 more
doaj   +1 more source

Short-term memory capacity analysis of Lu3Fe4Co0.5Si0.5O12-based spin cluster glass towards reservoir computing

open access: yesScientific Reports, 2023
Reservoir computing is a brain heuristic computing paradigm that can complete training at a high speed. The learning performance of a reservoir computing system relies on its nonlinearity and short-term memory ability.
Zhiqiang Liao   +5 more
doaj   +1 more source

Large Exchange Bias Triggered by Transition Zone of Spin Glass

open access: yesAdvanced Physics Research, 2023
Exchange bias has increasingly practical significance in magnetoresistive and spintronic devices. However, the underlying mechanism of exchange bias in bulk compounds with the structural single‐phase and inhomogeneous magnetic phases is still elusive ...
Xiaoqi Liao   +8 more
doaj   +1 more source

Supersymmetric spin glass [PDF]

open access: yesJournal of Experimental and Theoretical Physics Letters, 1997
The evidently supersymmetric four-dimensional Wess-Zumino model with quenched disorder is considered at the one-loop level. The infrared fixed points of a beta-function form the moduli space $M = RP^2$ where two types of phases were found: with and without replica symmetry.
openaire   +3 more sources

Study of canonical spin glass behavior in Co doped LaMnO3

open access: yesAIP Advances, 2021
Temperature-dependent magnetic and a.c. susceptibility measurements were done on single phase polycrystalline LaMn1-yCoyO3 (y = 0.1, 0.4) samples. The field cooled and zero field cooled magnetic measurements performed indicate the presence of spin glass ...
Farooq H. Bhat   +5 more
doaj   +1 more source

Universal spin-glass behaviour in bulk LaNiO2, PrNiO2 and NdNiO2

open access: yesNew Journal of Physics, 2022
Motivated by the recent discovery of superconductivity in infinite-layer nickelate thin films, we report on a synthesis and magnetization study on bulk samples of the parent compounds R NiO _2 ( R = La, Pr, Nd).
Hai Lin   +6 more
doaj   +1 more source

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