Zobrazeno 1 - 10
of 1 350
pro vyhledávání: '"Kuneš, P."'
Publikováno v:
Phys. Rev. B 110, L100402 (2024)
We present a numerical simulation of the X-ray magnetic circular dichroism (XMCD) at the $L_{2,3}$ edge of Mn in altermagnetic MnF$_2$ using a combination of density functional + exact diagonlization of an atomic model. We explore how the dichroic sp
Externí odkaz:
http://arxiv.org/abs/2405.11833
Autor:
Nakagawa, K., Hariki, A., Okauchi, T., Fujiwara, H., Ahn, K. -H., Murakami, Y., Hamamoto, S., Kanai-Nakata, Y., Kadono, T., Higashiya, A., Tamasaku, K., Yabashi, M., Ishikawa, T., Sekiyama, A., Imada, S., Kuneš, J., Takase, K., Yamasaki, A.
We present Ir $4f$ core-level hard-x-ray photoemission spectroscopy (HAXPES) experiments conducted across antiferromagnetic (AFM) ordering transition in Ruddlesden-Popper iridates Sr$_2$IrO$_4$ and Sr$_3$Ir$_2$O$_7$. The Ir $4f$ spectra exhibit disti
Externí odkaz:
http://arxiv.org/abs/2404.12646
Autor:
Haviv, Doron, Kunes, Russell Zhang, Dougherty, Thomas, Burdziak, Cassandra, Nawy, Tal, Gilbert, Anna, Pe'er, Dana
Optimal transport (OT) and the related Wasserstein metric (W) are powerful and ubiquitous tools for comparing distributions. However, computing pairwise Wasserstein distances rapidly becomes intractable as cohort size grows. An attractive alternative
Externí odkaz:
http://arxiv.org/abs/2404.09411
Autor:
Marino, Andrea, Christovam, Denise S., Takegami, Daisuke, Falke, Johannes, Carvalho, Miguel M. F., Okauchi, Takaki, Chang, Chun-Fu, Altendorf, Simone G., Amorese, Andrea, Sundermann, Martin, Gloskovskii, Andrei, Gretarsson, Hlynur, Keimer, Bernhard, Andreev, Alexandr V., Havela, Ladislav, Leithe-Jasper, Andreas, Severing, Andrea, Kunes, Jan, Tjeng, Liu Hao, Hariki, Atsushi
Publikováno v:
Phys. Rev. Research 6, 033068 (2024), Editors' Suggestions
A procedure for quantifying the U $5f$ electrons' covalence and degree of localization in U intermetallic compounds is presented. To this end, bulk sensitive hard and soft x-ray photoelectron spectroscopy were utilized in combination with density-fun
Externí odkaz:
http://arxiv.org/abs/2404.06266
Autor:
Yamaguchi, Tatsuya, Furo, Mizuki, Sakai, Yuki, Nishikubo, Takumi, Hojo, Hajime, Azuma, Masaki, Oka, Kengo, Mori, Daisuke, Inaguma, Yoshiyuki, Mizumaki, Masaichiro, Yamamoto, Kento, Kuneš, Jan, Mizokawa, Takashi, Hariki, Atsushi
Publikováno v:
Physical Review B 109, 205131 (2024)
Perovskites with Bi or Pb on the A-site host a number of interesting and yet to be understood phenomena such as negative thermal expansion in BiNiO$_3$. We employ hard x-ray photoemission spectroscopy of Ni 2$p$ core-level as well as valence band to
Externí odkaz:
http://arxiv.org/abs/2312.12072
Publikováno v:
Phys. Rev. B 109, 094413 (2024)
We present numerical simulation of the X-ray magnetic circular dichroism (XMCD) of the $L_{2,3}$ and $M_{2,3}$ edges of Ru in antiferromagnetic RuO$_2$ using a combination of density functional + dynamical mean-field theory and configuration interact
Externí odkaz:
http://arxiv.org/abs/2312.02629
Autor:
Tomáš David, Miroslava Šedinová, Aneta Myšková, Jaroslav Kuneš, Lenka Maletínská, Radek Pohl, Martin Dračínský, Helena Mertlíková-Kaiserová, Karel Čížek, Blanka Klepetářová, Miroslava Litecká, Antonín Kaňa, David Sýkora, Adam Jaroš, Michal Straka, Miloslav Polasek
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract Coordination compounds of lanthanides are indispensable in biomedical applications as MRI contrast agents and radiotherapeutics. However, since the introduction of the chelator DOTA four decades ago, there has been only limited progress on i
Externí odkaz:
https://doaj.org/article/9f1742eaa53148b680d760f9ec59e3ba
The density functional plus dynamical mean-field theory is used to study the spin excitation spectra of SrRu$_2$O$_6$. A good quantitative agreement with experimental spin excitation spectra is found. Depending on the size of the Hund's coupling $J_H
Externí odkaz:
http://arxiv.org/abs/2305.19826
Autor:
Hariki, A., Din, A. Dal, Amin, O. J., Yamaguchi, T., Badura, A., Kriegner, D., Edmonds, K. W., Campion, R. P., Wadley, P., Backes, D., Veiga, L. S. I., Dhesi, S. S., Springholz, G., Šmejkal, L., Výborný, K., Jungwirth, T., Kuneš, J.
Publikováno v:
Phys. Rev. Lett. 132, 176701 (2024)
Altermagnetism is a recently identified magnetic symmetry class combining characteristics of conventional collinear ferromagnets and antiferromagnets, that were regarded as mutually exclusive, and enabling phenomena and functionalities unparalleled i
Externí odkaz:
http://arxiv.org/abs/2305.03588
Autor:
Li, Jiemin, Gu, Yanhong, Takahashi, Yoshihiro, Higashi, Keisuke, Kim, Taehun, Cheng, Yang, Yang, Fengyuan, Kunes, Jan, Pelliciari, Jonathan, Hariki, Atsushi, Bisogni, Valentina
Publikováno v:
Phys. Rev. X 13, 011012 (2023)
Understanding the spin dynamics in antiferromagnetic (AFM) thin films is fundamental for designing novel devices based on AFM magnon transport. Here, we study the magnon dynamics in thin films of AFM $S=5/2$ $\alpha$-Fe$_2$O$_3$ by combining resonant
Externí odkaz:
http://arxiv.org/abs/2210.06911