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pro vyhledávání: '"Doenni, Andreas"'
We report on the magnetic structures of Tb3RuO7 and Nd3RuO7 determined from powder neutron-diffraction experiments. In Tb3RuO7, alternating-bond spin-3/2 Ru1-Ru2 chains are formed. The Ru1 and Ru2 moments are ordered and disordered (paramagnetic), re
Externí odkaz:
http://arxiv.org/abs/2109.14201
Publikováno v:
In Journal of Magnetism and Magnetic Materials 1 June 2024 599
Autor:
Dönni, Andreas, Pomjakushin, Vladimir Y., Rotter, Martin, Zhang, Lei, Yamaura, Kazunari, Belik, Alexei A.
Publikováno v:
In Ceramics International August 2024
Akademický článek
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Publikováno v:
In Journal of Alloys and Compounds 15 March 2021 857
Autor:
Hase, Masashi, Kuroe, Haruhiko, Pomjakushin, Vladimir Yu., Keller, Lukas, Tamura, Ryo, Terada, Noriki, Matsushita, Yoshitaka, Doenni, Andreas, Sekine, Tomoyuki
We investigated the crystal and magnetic structures of the spin-1/2 frustrated antiferromagnet Cu3Mo2O9 in which the spin system consists of antiferromagnetic chains and dimers. The space group at room temperature has been reported to be orthorhombic
Externí odkaz:
http://arxiv.org/abs/1506.08513
Autor:
Hase, Masashi, Pomjakushin, Vladimir Yu., Doenni, Andreas, Yang, Tao, Cong, Rihong, Lin, Jianhua
We can directly investigate the ground state in magnetization-plateau fields (plateau ground state) using neutron diffraction measurements. We performed neutron diffraction measurements on the spin-5/2 trimer substance SrMn$_3$P$_4$O$_{14}$ in magnet
Externí odkaz:
http://arxiv.org/abs/1406.4939
Autor:
Steinke, Lucia, Mitsumoto, Keisuke, Miclea, Corneliu F., Weickert, Franziska, Dönni, Andreas, Akatsu, Mitsuhiro, Nemoto, Yuichi, Goto, Terutaka, Kitazawa, Hideaki, Thalmeier, Peter, Brando, Manuel
We study the ternary clathrate Pr3Pd20Si6 in specific heat and AC-susceptibility measurements on a high-quality single crystal, distinguishing antiferromagnetic (AFM) and antiferroquadrupolar (AFQ) ordering on two sublattices of inequivalent Pr sites
Externí odkaz:
http://arxiv.org/abs/1303.5100
Autor:
Hase, Masashi, Pomjakushin, Vladimir Yu., Keller, Lukas, Dönni, Andreas, Sakai, Osamu, Yang, Tao, Cong, Rihong, Lin, Jianhua, Ozawa, Kiyoshi, Kitazawa, Hideaki
We study a spin-5/2 antiferromagnetic trimerized chain substance SrMn3P4O14 using neutron powder diffraction experiments. The coplanar spiral magnetic structure appears below T_N1 = 2.2(1) K. Values of several magnetic structure parameters change rap
Externí odkaz:
http://arxiv.org/abs/1111.1782
Autor:
Hase, Masashi, Pomjakushin, Vladimir Yu., Sikolenko, Vadim, Keller, Lukas, Luetkens, Hubertus, Doenni, Andreas, Kitazawa, Hideaki
Publikováno v:
Physical Review B 84, 104402 (2011)
We study themagnetism of a spin-1 substance Li2Ni2Mo3O12. The spin system consists of distorted honeycomb lattices and linear chains of Ni2+ spins. Li+ ions enter about 25% and 50% of the honeycomb and chain Ni sites, respectively, creating disorder
Externí odkaz:
http://arxiv.org/abs/1110.0587