Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Derlet, Peter M"'
Five-stage ordering to a topological-defect-mediated ground state in a buckyball artificial spin ice
Artificial spin ices are arrays of coupled nanomagnets, which exhibit a variety of fascinating collective behaviour including emergent magnetic monopoles, charge screening, and novel phase transitions. However, they have mainly been confined to two d
Externí odkaz:
http://arxiv.org/abs/2407.05907
Recent experimental investigations of individual magnetic nanoparticles reveal a diverse range of magnetic relaxation times which cannot be explained by considering their size, shape, and surface anisotropy, suggesting other factors associated with t
Externí odkaz:
http://arxiv.org/abs/2407.03220
Autor:
Bocquet, Hugo, Derlet, Peter M.
Magnetic systems can exhibit thermally activated transitions whose timescales are often described by an Arrhenius law. However, robust predictions of such timescales are only available for certain cases. Inspired by the harmonic theory of Langer, we
Externí odkaz:
http://arxiv.org/abs/2407.02469
Autor:
Stricker, Laura, Derlet, Peter M., Demirörs, Ahmet Faik, Vutukuri, Hanumantha Rao, Vermant, Jan
Publikováno v:
Phys. Rev. Lett., 132, 218202, 2024
In this combined experimental and simulation study, we utilize bond-order topology to quantitatively match particle volume fraction in mechanically uniformly compressed colloidal suspensions with temperature in atomistic simulations. The obtained map
Externí odkaz:
http://arxiv.org/abs/2406.03469
Autor:
Chesser, Ian, Derlet, Peter M., Mishra, Avanish, Paguaga, Sarah, Mathew, Nithin, Dang, Khanh, Uberuaga, Blas Pedro, Hunter, Abigail, Fensin, Saryu
The microstructural evolution at and near pre-existing grain boundaries (GBs) and dislocations in materials under high radiation doses is still poorly understood. In this work, we use the creation relaxation algorithm (CRA) developed for atomistic mo
Externí odkaz:
http://arxiv.org/abs/2405.04633
Autor:
Lee, Youjin, Son, Suhan, Kim, Chaebin, Kang, Soonmin, Shen, Junying, Kenzelmann, Michel, Delley, Bernard, Savchenko, Tatiana, Parchenko, Sergii, Na, Woongki, Choi, Ki-Young, Kim, Wondong, Cheong, Hyeonsik, Derlet, Peter M., Kleibert, Armin, Park, Je-Geun
Van der Waals (vdW) magnets are an ideal platform for tailoring two-dimensional (2D) magnetism with immense potential for spintronics applications and are intensively investigated. However, little is known about the microscopic origin of magnetic ord
Externí odkaz:
http://arxiv.org/abs/2211.05381
Publikováno v:
In Acta Materialia 1 April 2024 267
Autor:
Mason, Daniel R., Das, Suchandrima, Derlet, Peter M., Dudarev, Sergei L., London, Andrew, Yu, Hongbing, Phillips, Nicholas W., Yang, David, Mizohata, Kenichiro, Xu, Ruqing, Hofmann, Felix
Combining spatially resolved X-ray Laue diffraction with atomic-scale simulations, we observe how ion-irradiated tungsten undergoes a series of non-linear structural transformations with increasing irradiation exposure. Nanoscale defect-induced defor
Externí odkaz:
http://arxiv.org/abs/2007.15376
Autor:
Savchenko, Tatiana M., Buzzi, Michele, Howald, Ludovic, Ruta, Sergiu, Vijayakumar, Jaianth, Timm, Martin, Bracher, David, Saha, Susmita, Derlet, Peter M., Béché, Armand, Verbeeck, Jo, Chantrell, Roy W., Vaz, C. A. F., Nolting, Frithjof, Kleibert, Armin
Publikováno v:
Phys. Rev. B 102, 205418 (2020)
Laser-induced manipulation of magnetism at the nanoscale is a rapidly growing research topic with potential for applications in spintronics. In this work, we address the role of the scattering cross section, thermal effects, and laser fluence on the
Externí odkaz:
http://arxiv.org/abs/2007.04011
We argue that frequent sampling of the fraction of infected people (either by random testing or by analysis of sewage water), is central to managing the COVID-19 pandemic because it both measures in real time the key variable controlled by restrictiv
Externí odkaz:
http://arxiv.org/abs/2004.04614