Results 81 to 90 of about 31,320 (288)

Polymorphic MnAs nanowires of a magnetic shape memory alloy

Phys. Chem. Chem. Phys., 2014
We describe a magnetic shape memory alloy, in which it is the nanostructural confinement that influences both the crystal geometry and the electronic and magnetic properties.
Echeverría-Arrondo, C., Pérez-Conde, J., Ayuela, Andrés   +2 more
openaire   +3 more sources

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Magnetic field induced strain assisted by stress in Ni-Fe-GaCo single crystals

EPJ Web of Conferences, 2010
Ferromagnetic shape memory alloys (FSMA) have the possibility to induced a strain by applying a magnetic field. The main advantage of the FSMA is that the strain cycling frequency is two orders of magnitude higher than coventional shape memory alloys ...
Chumlyakov Y., Kustov S., Cesari E., Dutkiewicz J., Francesc M., Pons J.   +5 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Integrative Approaches for DNA Sequence‐Controlled Functional Materials

Advanced Functional Materials, EarlyView.
DNA is emerging as a programmable building block for functional materials with applications in biomimicry, biochemical, and mechanical information processing. The integration of simulations, experiments, and machine learning is explored as a means to bridge DNA sequences with macroscopic material properties, highlighting current advances and providing ...
Aaron Gadzekpo, Ewa Anna Oprzeska‐Zingrebe, Mariana Kozlowska, Lennart Hilbert, Iliya D. Stoev   +4 more
wiley   +1 more source

Autonomous generator based on Ni-Mn-Ga microactuator as a frequency selective element

EPJ Web of Conferences, 2013
In this work, we suggest the temperature-induced resistivity change at the martensitic transformation in the Ni-Mn-Ga ferromagnetic shape memory alloy as a driving mechanism enabling periodic signal generation. We demonstrated its practical importance by
Barandiaran J.M., Skirta Y. B., Krupa M. M., Ohtsuka M., Chernenko V.A.   +4 more
doaj   +1 more source

Low-pressure-induced giant barocaloric effect in an all-d-metal Heusler Ni35.5Co14.5Mn35Ti15 magnetic shape memory alloy

APL Materials, 2020
The clean and energy-efficient solid-state refrigeration based on magnetostructural phase transformation is a promising alternative technology for vapor-compression refrigeration.
Zhiyang Wei, Yi Shen, Zhe Zhang, Jianping Guo, Bing Li, Enke Liu, Zhidong Zhang, Jian Liu   +7 more
doaj   +1 more source

Coherent phonon dynamics at the martensitic phase transition of Ni_2MnGa

, 2012
We use time-resolved optical reflectivity to study the laser stimulated dynamics in the magnetic shape memory alloy Ni_2MnGa. We observe two coherent optical phonons, at 1.2 THz in the martensite phase and at 0.7 THz in the pre-martensite phase, which we
Beaud, P., Caviezel, A., Ingold, G., Mariager, S. O., Quitmann, C.   +4 more
core   +1 more source

In Materia Shaping of Randomness with a Standard Complementary Metal‐Oxide‐Semiconductor Transistor for Task‐Adaptive Entropy Generation

Advanced Functional Materials, EarlyView.
This study establishes a materials‐driven framework for entropy generation within standard CMOS technology. By electrically rebalancing gate‐oxide traps and Si‐channel defects in foundry‐fabricated FDSOI transistors, the work realizes in‐materia control of temporal correlation – achieving task adaptive entropy optimization for reinforcement learning ...
Been Kwak, Ryun‐Han Koo, Youngchan Cho, Changhyeon Han, Dongbin Kim, Soi Jeong, Yunho Shin, Joonhyeok Choi, Jiseong Im, Jonghyun Ko, Jong‐Ho Lee, Jangsaeng Kim, Youngho Kang, Wonjun Shin, Daewoong Kwon   +14 more
wiley   +1 more source

On magnetic shape memory alloy actuator characteristics

Journal of Vibroengineering, 2009
Magnetic shape memory alloys (MSMA) are adaptive materials controlled with a magnetic field. A fast response, large magnetic field induced strain and high damping make MSMAs attractive materials for actuators. The aim of this study was to define the characteristics of a MSMA actuator and evaluate its suitability for vibration control.
Ahola, Jari, Liedes, Toni, Kroneld, Petter, Nevala, Kalervo   +3 more
openaire   +3 more sources