Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Babkevich P"'
Autor:
Mustonen, Otto H. J., Fogh, Ellen, Paddison, Joseph A. M., Mangin-Thro, Lucile, Hansen, Thomas, Playford, Helen, Diaz-Lopez, Maria, Babkevich, Peter, Vasala, Sami, Karppinen, Maarit, Cussen, Edmund J., Rønnow, Henrik M., Walker, Helen C.
Publikováno v:
Chem. Mater. 36, 501-513 (2024)
Quantum spin liquids are highly entangled magnetic states with exotic properties. The $S = 1/2$ square-lattice Heisenberg model is one of the foundational models in frustrated magnetism with a predicted, but never observed, quantum spin liquid state.
Externí odkaz:
http://arxiv.org/abs/2309.14422
Publikováno v:
Scientific Reports 14:25227 (2024)
We first present a formalism that incorporates the input-output formalism and the linear response theory to employ cavity-magnon-polariton coupling as a spectroscopic tool for investigating strongly hybridized electro-nuclear spin excitations. A micr
Externí odkaz:
http://arxiv.org/abs/2309.05051
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract We first present a formalism that incorporates the input-output formalism and the linear response theory to employ cavity-magnon-polariton coupling as a spectroscopic tool for investigating strongly hybridized electro-nuclear spin excitation
Externí odkaz:
https://doaj.org/article/99a179e4fc394a2d890b54b04a556b70
Autor:
Testa, Luc, Babkevich, Peter, Kato, Yasuyuki, Kimura, Kenta, Favre, Virgile, Rodriguez-Rivera, Jose A., Ollivier, Jacques, Raymond, Stéphane, Kimura, Tsuyoshi, Motome, Yukitoshi, Normand, Bruce, Rønnow, Henrik M.
Publikováno v:
Phys. Rev. B 105, 214406 (2022)
We report high-resolution single-crystal inelastic neutron scattering measurements on the spin-1/2 antiferromagnet Ba(TiO)Cu$_4$(PO$_4$)$_4$. This material is formed from layers of four-site \cupola" structures, oriented alternately upwards and downw
Externí odkaz:
http://arxiv.org/abs/2203.00067
Autor:
Fogh, Ellen, Mustonen, Otto, Babkevich, Peter, Katukuri, Vamshi M., Walker, Helen C., Mangin-Thro, Lucile, Karppinen, Maarit, Ward, Simon, Normand, Bruce, Rønnow, Henrik M.
Publikováno v:
Physical Review B 105, 184410 (2022)
We explore the interplay between randomness and magnetic frustration in the series of $S = 1/2$ Heisenberg square-lattice compounds Sr$_2$CuTe$_{1-x}$W$_x$O$_6$. Substituting W for Te alters the magnetic interactions dramatically, from strongly neare
Externí odkaz:
http://arxiv.org/abs/2112.03312
Autor:
Zivkovic, Ivica, Favre, Virgile, Mejia, Catalina Salazar, Jeschke, Harald O., Magrez, Arnaud, Dabholkar, Bhupen, Noculak, Vincent, Freitas, Rafael S., Jeong, Minki, Hegde, Nagabhushan G., Testa, Luc, Babkevich, Peter, Su, Yixi, Manuel, Pascal, Luetkens, Hubertus, Baines, Christopher, Baker, Peter J., Wosnitza, Jochen, Zaharko, Oksana, Iqbal, Yasir, Reuther, Johannes, Rønnow, Henrik M.
Publikováno v:
Phys. Rev. Lett. 127, 157204 (2021)
Quantum spin liquids are exotic states of matter which form when strongly frustrated magnetic interactions induce a highly entangled quantum paramagnet far below the energy scale of the magnetic interactions. Three-dimensional cases are especially ch
Externí odkaz:
http://arxiv.org/abs/2109.04102
Autor:
Katukuri, Vamshi M., Babkevich, P., Mustonen, O., Walker, H. C., Fåk, B., Vasala, S., Karppinen, M., Rønnow, H. M., Yazyev, O. V.
Publikováno v:
Phys. Rev. Lett. 124, 077202 (2020)
Establishing the physical mechanism governing exchange interactions is fundamental for exploring exotic phases such as the quantum spin liquids (QSLs) in real materials. In this work, we address exchange interactions in Sr2CuTe$_{1-x}$W$_{x}$O, a ser
Externí odkaz:
http://arxiv.org/abs/1902.09376
Autor:
Kimura, K., Toyoda, M., Babkevich, P., Yamauchi, K., Sera, M., Nassif, V., Rønnow, H. M., Kimura, T.
Publikováno v:
Phys. Rev. B 97, 134418 (2018)
Ferroic magnetic quadrupole order exhibiting macroscopic magnetoelectric activity is discovered in the novel compound $A$(TiO)Cu$_4$(PO$_4$)$_4$ with $A$ = Pb, which is in contrast with antiferroic quadrupole order observed in the isostructural compo
Externí odkaz:
http://arxiv.org/abs/1804.06772
Autor:
Cvitanić, Tonči, Šurija, Vinko, Prša, Krunoslav, Zaharko, Oksana, Babkevich, Peter, Frontzek, Matthias, Požek, Miroslav, Berger, Helmuth, Magrez, Arnaud, Rønnow, Henrik M., Grbić, Mihael S., Živković, Ivica
Publikováno v:
Phys. Rev. B 98, 054409 (2018)
We present an experimental investigation of the magnetic structure in a tetramer system SeCuO$_3$ using neutron diffraction and nuclear resonance techniques. We establish a non-collinear, commensurate antiferromagnetic ordering with a propagation vec
Externí odkaz:
http://arxiv.org/abs/1801.01431
Publikováno v:
Phys. Rev. B 96, 214436 (2017)
The antiferromagnetic compound Ba(TiO)Cu$_4$(PO$_4$)$_4$ contains square cupola of corner-sharing CuO$_4$ plaquettes, which were proposed to form effective quadrupolar order. To identify the magnetic structure, we have performed spherical neutron pol
Externí odkaz:
http://arxiv.org/abs/1709.08566