Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Weber, Sophie F"'
We use symmetry analysis and density functional theory to show that changes in magnetic order at a surface with respect to magnetic order in the bulk can be generically determined by considering local magnetoelectric responses of the crystal. Specifi
Externí odkaz:
http://arxiv.org/abs/2412.06625
We show that the surface of a centrosymmetric, collinear, compensated antiferromagnet, which hosts bulk ferroically ordered magnetic octupoles, exhibits a linear magnetoelectric effect, a net magnetization, and a net electric dipole moment. Thus, the
Externí odkaz:
http://arxiv.org/abs/2411.12434
We perform first-principles density functional calculations to elucidate structural, electronic and magnetic properties at the interface of \ce{(0001)Cr2O3-(111)Pt} bilayers. This investigation is motivated by the fact that, despite the promise of \c
Externí odkaz:
http://arxiv.org/abs/2405.05020
Autor:
Grahlow, Fabian, Strauß, Fabian, Scheele, Marcus, Ströbele, Markus, Carta, Alberto, Weber, Sophie F., Kroeker, Scott, Romao, Carl P., Meyer, H. -Jürgen
Publikováno v:
Phys. Chem. Chem. Phys., 2024, 26, 11789-11797
The crystal structures of ANb$_3$Br$_7$S (A = Rb and Cs) have been refined by single crystal X-ray diffraction, and are found to form highly anisotropic materials based on chains of the triangular Nb$_3$ cluster core. The Nb$_3$ cluster core contains
Externí odkaz:
http://arxiv.org/abs/2401.12062
Autor:
Pylypovskyi, Oleksandr V., Weber, Sophie F., Makushko, Pavlo, Veremchuk, Igor, Spaldin, Nicola A., Makarov, Denys
Publikováno v:
Physical Review Letters, 132, 226702 (2024)
Antiferromagnets are normally thought of as materials with compensated magnetic sublattices. This adds to their technological advantages but complicates readout of the antiferromagnetic state. We demonstrate theoretically the existence of a Dzyaloshi
Externí odkaz:
http://arxiv.org/abs/2310.13438
Autor:
Bousquet, Eric, Lelièvre-Berna, Eddy, Qureshi, Navid, Soh, Jian-Rui, Spaldin, Nicola A., Urru, Andrea, Verbeek, Xanthe H., Weber, Sophie F.
Publikováno v:
J. Phys.: Condens. Matter 36 155701 (2024)
We establish the sign of the linear magnetoelectric (ME) coefficient, $\alpha$, in chromia, Cr$_2$O$_3$. Cr$_2$O$_3$ is the prototypical linear ME material, in which an electric (magnetic) field induces a linearly proportional magnetization (polariza
Externí odkaz:
http://arxiv.org/abs/2309.02095
We use symmetry analysis and density functional theory to characterize antiferromagnetic (AFM) materials which have a finite equilibrium magnetization density on particular surface terminations. A nonzero magnetic dipole moment per unit area or "surf
Externí odkaz:
http://arxiv.org/abs/2306.06631
Autor:
Weber, Sophie F., Spaldin, Nicola A.
We use a combination of density functional theory and Monte Carlo calculations to calculate the surface magnetization in magnetoelectric $\mathrm{Cr_2O_3}$ at finite temperatures. Such antiferromagnets, lacking both inversion and time-reversal symmet
Externí odkaz:
http://arxiv.org/abs/2208.02701
Autor:
Wu, Shan, Xu, Zhijun, Haley, Shannon C., Weber, Sophie F., Acharya, Arany, Maniv, Eran, Qiu, Yiming, Aczel, A. A., Neaton, Jeffrey B., Analytis, James G., Birgeneau, Robert J.
Layered transition metal dichalcogenides (TMDCs) host a plethora of interesting physical phenomena ranging from charge order to superconductivity. By introducing magnetic ions into 2H-NbS$_2$, the material forms a family of magnetic intercalated TMDC
Externí odkaz:
http://arxiv.org/abs/2106.01341
Autor:
Weber, Sophie F., Neaton, Jeffrey B.
Recent experiments on the antiferromagnetic intercalated transition metal dichalcogenide $\mathrm{Fe_{1/3}NbS_2}$ have demonstrated reversible resistivity switching by application of orthogonal current pulses below its magnetic ordering temperature,
Externí odkaz:
http://arxiv.org/abs/2104.07591