Results 11 to 20 of about 73,779 (261)

Artificial spin ice phase-change memory resistors

New Journal of Physics, 2022
We present a proposal for realization of an electrical memory reminiscent of a memristor in connected Kagome artificial spin ice. We show that current flowing through the system alters the magnetic ensemble, which in turns controls the overall resistance
Francesco Caravelli, Gia-Wei Chern, Cristiano Nisoli   +2 more
doaj   +3 more sources

Crystallizing Kagome Artificial Spin Ice

Physical Review Letters, 2022
Artificial spin ices are engineered arrays of dipolarly coupled nanobar magnets. They enable direct investigations of fascinating collective phenomena from their diverse microstates. However, experimental access to ground states in the geometrically frustrated systems has proven difficult, limiting studies and applications of novel properties and ...
Wen-Cheng Yue, Zixiong Yuan, Yang-Yang Lyu, Sining Dong, Jian Zhou, Zhi-Li Xiao, Liang He, Xuecou Tu, Ying Dong, Huabing Wang, Weiwei Xu, Lin Kang, Peiheng Wu, Cristiano Nisoli, Wai-Kwong Kwok, Yong-Lei Wang   +15 more
openaire   +5 more sources

Doped colloidal artificial spin ice

New Journal of Physics, 2015
We examine square and kagome artificial spin ice for colloids confined in arrays of double-well traps. Unlike magnetic artificial spin ices, colloidal and vortex artificial spin ice realizations allow creation of doping sites through double occupation of
A Libál, C J Olson Reichhardt, C Reichhardt   +2 more
doaj   +2 more sources

Understanding thermal annealing of artificial spin ice [PDF]

APL Materials, 2019
We have performed a detailed study on thermal annealing of the moment configuration in artificial spin ice. Permalloy (Ni80Fe20) artificial spin ice samples were examined in the prototypical square ice geometry, studying annealing as a function of island
Xiaoyu Zhang, Yuyang Lao, Joseph Sklenar, Nicholas S. Bingham, Joseph T. Batley, Justin D. Watts, Cristiano Nisoli, Chris Leighton, Peter Schiffer   +8 more
doaj   +3 more sources

Advances in artificial spin ice [PDF]

Nature Reviews Physics, 2019
Artificial spin ices consist of nanomagnets arranged on the sites of various periodic and aperiodic lattices. They have enabled the experimental investigation of a variety of fascinating phenomena such as frustration, emergent magnetic monopoles and phase transitions that have previously been the domain of bulk spin crystals and theory, as we discuss ...
Sandra H. Skjærvø, Christopher H. Marrows, Robert L. Stamps, Laura J. Heyderman   +3 more
openaire   +3 more sources

Distinguishing artificial spin ice states using magnetoresistance effect for neuromorphic computing [PDF]

Nature Communications, 2023
Artificial spin ice (ASI) consisting patterned array of nano-magnets with frustrated dipolar interactions offers an excellent platform to study frustrated physics using direct imaging methods.
Wenjie Hu, Zefeng Zhang, Yanghui Liao, Qiang Li, Yang Shi, Huanyu Zhang, Xumeng Zhang, Chang Niu, Yu Wu, Weichao Yu, Xiaodong Zhou, Hangwen Guo, Wenbin Wang, Jiang Xiao, Lifeng Yin, Qi Liu, Jian Shen   +16 more
doaj   +2 more sources

Thermally induced magnetic relaxation in square artificial spin ice. [PDF]

Sci Rep, 2016
The properties of natural and artificial assemblies of interacting elements, ranging from Quarks to Galaxies, are at the heart of Physics. The collective response and dynamics of such assemblies are dictated by the intrinsic dynamical properties of the ...
Andersson MS, Pappas SD, Stopfel H, Östman E, Stein A, Nordblad P, Mathieu R, Hjörvarsson B, Kapaklis V.   +8 more
europepmc   +2 more sources

The importance of the weak: Interaction modifiers in artificial spin ices [PDF]

Nature Physics, 2017
The modification of geometry and interactions in two-dimensional magnetic nanosystems has enabled a range of studies addressing the magnetic order, collective low-energy dynamics, and emergent magnetic properties, in e.g.
A Farhan, A Farhan, A Vansteenkiste, Aaron Stein, B Canals, Björgvin Hjörvarsson, C Nisoli, C Nisoli, CL Henley, CL Henley, D Zhou, E Mengotti, EH Lieb, Erik Östman, ET Papaioannou, G Möller, GW Chern, Henry Stopfel, I Gilbert, I Gilbert, Ioan-Augustin Chioar, JP Morgan, JP Morgan, MS Andersson, N Rougemaille, O Sendetskyi, PE Lammert, RF Wang, SA Morley, SF Edwards, T Fennell, UB Arnalds, UB Arnalds, Unnar B. Arnalds, V Kapaklis, V Kapaklis, Vassilios Kapaklis, Y Perrin   +37 more
core   +5 more sources

Logical gates embedding in artificial spin ice

New Journal of Physics, 2020
The realization and study of arrays of interacting magnetic nanoislands, such as artificial spin ices, have reached mature levels of control that allow design and demonstration of exotic, collective behaviors not seen in natural materials.
Francesco Caravelli, Cristiano Nisoli
doaj   +3 more sources

Chiral nature of magnetic monopoles in artificial spin ice

New Journal of Physics, 2013
Micromagnetic properties of monopoles in artificial kagome spin ice systems are investigated using numerical simulations. We show that micromagnetics brings additional complexity into the physics of these monopoles that is, by essence, absent in spin ...
N Rougemaille, F Montaigne, B Canals, M Hehn, H Riahi, D Lacour, J-C Toussaint   +6 more
doaj   +4 more sources