Results 141 to 150 of about 370,267 (329)

Room-temperature spin-glass behaviors and memory effects in Al-substituted Y3Fe5O12 epitaxial film grown by pulsed laser deposition

AIP Advances
This study explores the magnetic properties of a thin film of Al-substituted Y3Fe5O12 grown on Y3Al5O12 (111) substrates using pulsed laser deposition. Spin-glass behavior was observed near room temperature in the film, with a spin-freezing temperature ...
Takahiro Yoshino, Siyi Tang, Md Shamim Sarker, EMK Ikball Ahamed, Zhiqiang Liao, Hiroyasu Yamahara, Hitoshi Tabata, Munetoshi Seki   +7 more
doaj   +1 more source

Field-Driven Hysteresis of the d=3 Ising Spin Glass: Hard-Spin Mean-Field Theory

, 2007
Hysteresis loops are obtained in the Ising spin-glass phase in d=3, using frustration-conserving hard-spin mean-field theory. The system is driven by a time-dependent random magnetic field H_Q that is conjugate to the spin-glass order Q, yielding a field-
A. N. Berker, A. Nihat Berker, Burcu Yücesoy   +2 more
core   +1 more source

Renormalization-Group Approach to Spin Glass Transition in an Ising Model [PDF]

, 1978
T. Tatsumi
openalex   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Local Energy Minima and Density of Energy Barriers in Dense Clusters of Magnetic Nanoparticles

Inorganics
In this paper, we focus on the properties of local energy minima and energy barriers in immobilized dense clusters of magnetic nanoparticles. Understanding of these features is highly interesting both for the fundamental physics of disordered systems ...
Natalia L. Gorn, Elena K. Semenova, Dmitry Berkov   +2 more
doaj   +1 more source

Reply to: Deep reinforced learning heuristic tested on spin-glass ground states: The larger picture. [PDF]

Nat Commun, 2023
Fan C, Shen M, Nussinov Z, Liu Z, Sun Y, Liu YY.   +5 more
europepmc   +1 more source

Critical Behavior of the Bethe Lattice Spin Glass [PDF]

, 1988
Jean M. Carlson, Jennifer Chayes, L. Chayes, James P. Sethna, D. J. Thouless   +4 more
openalex   +1 more source

Switching of Magnetic Order via Non‐Magnetic Al Addition in FeCoNiMnAlx Films

Advanced Functional Materials, EarlyView.
Non‐magnetic Al addition provides a sensitive handle to switch the magnetic order in high entropy FeCoNiMnAlx thin films via fcc to bcc phase transformation. Films with fcc structure exhibit a large exchange bias, while bcc films exhibit enhanced ferromagnetic properties, reflecting the magnetic ground state of Mn which switches from antiferromagnetic ...
Willie B. Beeson, Dinesh Bista, Nushrat Naushin, Alpha T. N'Diaye, Roopali Kukreja, Gen Yin, Kai Liu   +6 more
wiley   +1 more source

Exact Results on the Ising Spin Glass in Finite Dimensions [PDF]

, 1986
Hidetoshi Nishimori
openalex   +1 more source

Self‐Poled Halide Perovskite Ruddlesden‐Popper Ferroelectric‐Photovoltaic Semiconductor Thin Films and Their Energy Harvesting Properties

Advanced Functional Materials, EarlyView.
Low‐dimensional halide perovskite thin films, (BA)2(MA)n‐1PbnBr3n+1 (n = 1, 2), exhibit both semiconducting and ferroelectric properties, enabling mechanical and light energy harvesting. Using Cr/Cr₂O₃ or PCBM as barrier layers ensures reproducible ferroelectricity.
Raja Sekhar Muddam, Shaoyang Wang, Nirmal Prashanth Maria Joseph Raj, Qingping Wang, Philip Wijesinghe, Julia Payne, Matthew S. Dyer, Chris Bowen, Lethy Krishnan Jagadamma   +8 more
wiley   +1 more source