Results 91 to 100 of about 945,229 (334)

Disordered skyrmion phase stabilized by magnetic frustration in a chiral magnet [PDF]

Science Advances, 2018
Magnetic frustration in a chiral magnet stabilizes a new disordered skyrmion phase over an extended temperature region. Magnetic skyrmions are vortex-like topological spin textures often observed to form a triangular-lattice skyrmion crystal in ...
K. Karube, J. White, D. Morikawa, C. Dewhurst, R. Cubitt, A. Kikkawa, Xiuzhen Yu, Y. Tokunaga, T. Arima, H. Rønnow, Y. Tokura, Y. Taguchi   +11 more
semanticscholar   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Marshall-Peierls sign rule in frustrated Heisenberg chains

, 1999
We consider the frustrated antiferromagnetic s=1 Heisenberg quantum spin chain with regard to the Marshall-Peierls sign rule (MPSR). By using exact diagonalization data we investigate the breakdown of the MPSR in dependence on frustration and compare our
Richter, Johannes, Voigt, Andreas
core   +2 more sources

The bright and the dark side of peer relationships: Differential effects of relatedness satisfaction and frustration at school on affective well-being in children's daily lives.

Developmental Psychology, 2020
Satisfaction and frustration of the basic psychological need for relatedness have been postulated to play a vital role for affective well-being. Yet, this prediction has not been thoroughly tested in schoolchildren's everyday lives.
Andrea Schmidt, Andreas B. Neubauer, J. Dirk, F. Schmiedek   +3 more
semanticscholar   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Consummatory Successive Negative Contrast in Mongolian Gerbil (Meriones unguiculatus)

International Journal of Psychological Research, 2016
Successive Negative Contrast (SNC) is a phenomenon in which there is a sharp decrease in the rate of reinforced behavior immediately after a sudden reduction in quality or quantity of a habitual reinforcer. This phenomenon has become a solid experimental
Andrés M. Pérez-Acosta, Gladys S. Martínez, Karen Eliana Corredor Páez, Cristina Vargas-Irwin, Luisa Fernanda Méndez Pardo   +4 more
doaj   +1 more source

Effect of magnetic frustration on single-hole spectral function in the t-t'-t''-J model

, 1998
We examine the effect of the magnetic frustration J' on the single-hole spectral function in the t-t'-t''-J model. At zero temperature, the exact diagonalization (ED) and the self-consistent Born approximation (SCBA) methods are used.
A. Nazarenko, B. Kyung, B. O. Wells, C. Kim, C. L. Kane, D. Duffy, D. K. Morr, E. Dagotto, F. Lema, F. Mila, G. Martinez, H. Eskes, H.-Q. Ding, J. F. Annett, J. Igarashi, J. van den Brink, P. W. Anderson, P. W. Leung, R. Eder, R. Hayn, S. Maekawa, S. Miyazawa, S. Schmitt-Ring, T. K. Lee, T. Tohyama, T. Tohyama, T. Xiang, V. I. Belinicher, W. F. Brinkman, Y. Shibata   +29 more
core   +1 more source

Frustration With Technology and its Relation to Emotional Exhaustion Among Health Care Workers: Cross-sectional Observational Study

Journal of Medical Internet Research, 2020
Background New technology adoption is common in health care, but it may elicit frustration if end users are not sufficiently considered in their design or trained in their use. These frustrations may contribute to burnout.
Daniel S. Tawfik, Amrita Sinha, M. Bayati, K. Adair, T. Shanafelt, J. Sexton, J. Profit   +6 more
semanticscholar   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Frustration effects in magnetic molecules

, 2005
By means of exact diagonalization we study the ground-state and the low-temperature physics of the Heisenberg antiferromagnet on the cuboctahedron and the icosidodecahedron.
Blake, Honecker, J. Richter, J. Schnack, Müller, Müller, R. Schmidt, Schulenburg   +7 more
core   +2 more sources