Results 161 to 170 of about 28,460 (303)

Magnetic phase transitions and entropy change in layered NdMn1.7Cr0.3Si2

, 2014
A giant magnetocaloric effect has been observed around the Curie temperature, TC ∼ 42 K, in NdMn1.7Cr0.3Si2 with no discernible thermal and magnetic hysteresis losses. Below 400 K, three magnetic phase transitions take place around 380 K, 320 K and 42 K.
A J Studer (13654972), M Avdeev (13655272), Rong Zeng (20119425), S J Kennedy (20219082), M F Md Din (13472980), Shi Dou (19588858), S J Campbell (13647637), Q F Gu (20230527), Jianli Wang (19586506)   +8 more
core  

Unraveling MXene Oxidation Mechanisms Under Realistic Gas Environments by In Situ Gas‐Cell TEM

Advanced Functional Materials, EarlyView.
Real‐time visualization of MXene degradation reveals a fundamental oxidation mechanism under oxygen and moisture environments. Using in situ gas‐cell electron microscopy, this study demonstrates that oxygen degradation drives a thermodynamically controlled high‐temperature transformation into mixed rutile/anatase phases.
Yongfa Cheng, Kunmo Koo, Zizhen Cai, Paty Meza, Yu Wen, Byungseok Seo, Yukun Liu, Xiaobing Hu, Vinayak P. Dravid   +8 more
wiley   +1 more source

Room-temperature magnetocaloric performance in La_0.57Nd_0.1Sr_0.23Ag_0.1MnO₃ manganite: a promising candidate for magnetic refrigeration. [PDF]

RSC Adv
Issaoui H, Jeddi M, Amri N, Issaoui F, Dhahri E, Hlil EK.   +5 more
europepmc   +1 more source

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

Advanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour, Younes Mousazade, Simon Diel, Shilendra Kumar Sharma, Tisita Das, Nathália C. Verissimo, Thomas Fischer, Ziyaad Aytuna, Andreas Lichtenberg, Sudip Chakraborty, Marcel Risch, Sanjay Mathur   +11 more
wiley   +1 more source

Electro‐Steric Ion Confinement in Polyelectrolyte Networks for Robust Nonvolatile Artificial Synapse

Advanced Functional Materials, EarlyView.
Polyelectrolyte stoichiometry governs ion transport and retention in electrolyte‐gated synaptic transistors. A PSS‐rich network creates electro‐steric ion confinement that suppresses ion back‐diffusion and stabilizes channel doping, enabling robust nonvolatile synaptic memory, linear weight updates, and low‐energy operation.
Donghwa Lee, Jinbo Kim, Myeongjin An, Jisoo Park, Junho Sung, Eunsung Hwang, Suhwan Seok, Seong‐Min Bak, Jeonghun Kim, Eunho Lee   +9 more
wiley   +1 more source

Cryogenic magnetocaloric effect in a disordered double-perovskite Gd₂MnZnO₆. [PDF]

RSC Adv
Petrov DN, Ćwik J, Koshkid'ko YS, Babij M, Ho TA, Phan TL, Khan DT, Dang NT, My KTH, Kim DH.   +9 more
europepmc   +1 more source

Pickering‐Engineered Microparticles for Magnetically Guided Motion and Light‐Triggered Catalysis

Advanced Functional Materials, EarlyView.
Magnetically responsive wax microparticles stabilized by hematite cubes through the Pickering emulsification strategy are developed, showing controlled size, motion, and light‐activated catalytic activity. Annealing under a magnetic field enhances their mobility and steering.
Chiara Ferlito, Ludovico Guercio, Giuseppe Cavallaro, Giuseppe Lazzara, Theodore Hueckel, Lorenzo Lisuzzo, Stefano Sacanna   +6 more
wiley   +1 more source

Study of solid-state synthesized Pr_0.55Sr_0.45Mn_1-<i>x</i> Cr _<i>x</i> O₃ perovskites with <i>x</i> = 0.0, 0.05, 0.1 and 0.15: Rietveld analysis and magnetic and magnetocaloric properties for magnetic refrigeration applications. [PDF]

RSC Adv
Selmi A, Ayed H, Gassoumi M, Cheikhrouhou-Koubaa W, Hlil EK, Bouazizi A.   +5 more
europepmc   +1 more source

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

Advanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko, Seongchan Kim, Jun‐Hyeok Han, Sanghee Lee, Minji Ahn, Hong En Fu, Young Jun Jang, Yoo Sang Jeon, Weiguo Li, Young Keun Kim, Dong‐Hyun Kim   +10 more
wiley   +1 more source

Evolution of Open Magnetic Flux and Heliospheric Current Sheet-Associated Streamer Wind Across Multiple Solar Cycles. [PDF]

Sol Phys
MacTaggart JR, Zhao L, Lepri ST, Fisk LA, Nakhleh AJ.   +4 more
europepmc   +1 more source