Zobrazeno 1 - 10
of 634
pro vyhledávání: '"E. Arenholz"'
Autor:
Q. Li, M. Yang, C. Klewe, P. Shafer, A. T. N’Diaye, D. Hou, T. Y. Wang, N. Gao, E. Saitoh, C. Hwang, R. J. Hicken, J. Li, E. Arenholz, Z. Q. Qiu
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-6 (2019)
The mechanism underpinning the frequency mismatch between THz magnons and the GHz spin currents observed in antiferromagnetic insulators remains unknown. Here, the authors demonstrate that, in a Py/Ag/CoO/Ag/Fe75Co25/MgO(001) heterostructure, a GHz s
Externí odkaz:
https://doaj.org/article/77719a8377b3455c8778b16fc8db0dce
Autor:
M. Golalikhani, Q. Lei, R. U. Chandrasena, L. Kasaei, H. Park, J. Bai, P. Orgiani, J. Ciston, G. E. Sterbinsky, D. A. Arena, P. Shafer, E. Arenholz, B. A. Davidson, A. J. Millis, A. X. Gray, X. X. Xi
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
The electronic behaviour of complex oxides such as LaNiO3 depends on many intrinsic and extrinsic factors, making it challenging to identify microscopic mechanisms. Here the authors demonstrate the influence of oxygen vacancies on the thickness-depen
Externí odkaz:
https://doaj.org/article/b500f5d5b0634a8a90d6a798dfb3a2b5
Autor:
Yanwei Cao, Zhen Wang, Se Young Park, Yakun Yuan, Xiaoran Liu, Sergey M. Nikitin, Hirofumi Akamatsu, M. Kareev, S. Middey, D. Meyers, P. Thompson, P. J. Ryan, Padraic Shafer, A. N’Diaye, E. Arenholz, Venkatraman Gopalan, Yimei Zhu, Karin M. Rabe, J. Chakhalian
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
Materials that combine metallic behaviour with stable electric polarization are scarce despite being proposed in the 1960s. Here the authors engineer a perovskite heterostructure where 2D polar metallic behavior coexists with built-in electric polari
Externí odkaz:
https://doaj.org/article/def6fe20a8d54f34955467b1c6a89851
Autor:
Junfeng He, Padraic Shafer, Thomas R. Mion, Vu Thanh Tra, Qing He, J. Kong, Y.-D. Chuang, W. L. Yang, M. J. Graf, J.-Y. Lin, Y.-H. Chu, E. Arenholz, Rui-Hua He
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Understanding the nature of competing phases is a key to understanding the superconducting mechanism of unconventional superconductors. Here, the authors demonstrate a three-dimensional charge ordering state which competes with superconductivity in e
Externí odkaz:
https://doaj.org/article/de1e56d4001d4c8393986038c7eda438
Autor:
I. Hallsteinsen, M. Moreau, R. V. Chopdekar, E. Christiansen, M. Nord, P.-E. Vullum, J. K. Grepstad, R. Holmestad, S. M. Selbach, A. Scholl, E. Arenholz, E. Folven, T. Tybell
Publikováno v:
APL Materials, Vol 5, Iss 8, Pp 086107-086107-8 (2017)
In antiferromagnetic spintronics control of the domains and corresponding spin axis orientation is crucial for devices. Here we investigate the antiferromagnetic axis in (111)-oriented LaFeO3/SrTiO3, which is coupled to structural twin domains. The s
Externí odkaz:
https://doaj.org/article/0df2311028f046769f488b4d43f9d4ae
Autor:
Kuepper, K., Kuschel, O., Pathé, N., Schemme, T., Schmalhorst, J., Thomas, A., Gorgoi, E. Arenholz M., Ovsyannikov, R., Bartkowski, S., Reiss, G., Wollschläger, J.
Publikováno v:
Phys. Rev. B 94, 024401 (2016)
We study the underlying chemical, electronic and magnetic properties of a number of magnetite based thin films. The main focus is placed onto NiO/Fe$_3$O$_4$(001) bilayers grown on MgO(001) and Nb-SrTiO$_3$(001) substrates. We compare the results wit
Externí odkaz:
http://arxiv.org/abs/1602.05804
Autor:
C Klewe, S Emori, Q Li, M Yang, B A Gray, H-M Jeon, B M Howe, Y Suzuki, Z Q Qiu, P Shafer, E Arenholz
Publikováno v:
New Journal of Physics, Vol 24, Iss 1, p 013030 (2022)
We present the first theoretical and experimental evidence of time-resolved dynamic x-ray magnetic linear dichroism (XMLD) measurements of GHz magnetic precessions driven by ferromagnetic resonance in both metallic and insulating thin films. Our find
Externí odkaz:
https://doaj.org/article/bfa0d1e13c4b49738fec16e80796e2e0
Autor:
Fangdi Wen, Xiaoran Liu, Qinghua Zhang, M Kareev, B Pal, Yanwei Cao, J W Freeland, A T N’Diaye, P Shafer, E Arenholz, Lin Gu, J Chakhalian
Publikováno v:
New Journal of Physics, Vol 21, Iss 10, p 103009 (2019)
The relativistic Mott insulator Sr _2 IrO _4 driven by large spin–orbit interaction is known for the ${J}_{\mathrm{eff}}=1/2$ antiferromagnetic state which closely resembles the electronic structure of parent compounds of superconducting cuprates.
Externí odkaz:
https://doaj.org/article/bc30f726e43d4ef8b46a71bf4ddfa237
Autor:
Jiun-Haw Chu, Jian Liu, Han Zhang, Kyle Noordhoek, Scott C Riggs, Maxwell Shapiro, Claudy Ryan Serro, Di Yi, M Mellisa, S J Suresha, C Frontera, E Arenholz, Ashvin Vishwanath, Xavi Marti, I R Fisher, R Ramesh
Publikováno v:
New Journal of Physics, Vol 21, Iss 11, p 113041 (2019)
We report the observation of a linear magnetoresistance in single crystals and epitaxial thin films of the pyrochlore iridate Bi _2 Ir _2 O _7 . The linear magnetoresistance is positive and isotropic at low temperatures, without any sign of saturatio
Externí odkaz:
https://doaj.org/article/ebf7a94a187f43a29dde961c65f61c1d
Autor:
C. Klewe, P. Shafer, J. E. Shoup, C. Kons, Y. Pogoryelov, R. Knut, B. A. Gray, H.-M. Jeon, B. M. Howe, O. Karis, Y. Suzuki, E. Arenholz, D. A. Arena, S. Emori
Publikováno v:
Applied Physics Letters. 122:132401
Many technologically useful magnetic oxides are ferrimagnetic insulators, which consist of chemically distinct cations. Here, we examine the spin dynamics of different magnetic cations in ferrimagnetic NiZnAl-ferrite (Ni0.65Zn0.35Al0.8Fe1.2O4) under