Divalent, trivalent, and heavy fermion states in Eu compounds

Autor: Masato Hedo, Yoshichika Ōnuki, Ai Nakamura, Hiroyuki Shiba, Miho Nakashima, Yousuke Ashitomi, Yasushi Amako, Hisatomo Harima, K Tomori, Takao Nakama, Kazuyuki Matsubayashi, T. Tekeuchi, Katsuya Shimizu, Yoshiya Uwatoko, Shuei Kayama, Tomoko Kagayama, Fuminori Honda, Daniel Braithwaite, S. Esakki Muthu, Dai Aoki, Bernard Salce, Tomoyuki Yara, Hiromu Akamine

Publikováno v: Philosophical Magazine
Philosophical Magazine, Taylor & Francis, 2017, 97 (36), pp.3399-3414
Philosophical Magazine, 2017, 97 (36), pp.3399-3414

Most of the Eu compounds are in the divalent (Eu) electronic state and order magnetically. On the other hand, the Eu-trivalent (Eu) compounds exist but are small in number. An energy difference between the Eu and Eu states is, however, not extremely

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d1ebf4483b1112ad9c0a3fc7f533beb
https://hal.archives-ouvertes.fr/hal-02010000

Pressure-Induced Valence Transition and Heavy Fermion State in Eu2Ni3Ge5 and EuRhSi3

Autor: Katsuya Shimizu, Yoshichika Ōnuki, Takao Nakama, Shuei Kayama, Tomoko Kagayama, Taro Uejo, Ai Nakamura, Miho Nakashima, Yoshiya Uwatoko, Tomoya Okazaki, Yasushi Amako, Hiromu Akamine, Masato Hedo, Hiroyuki Shiba, Kazuyuki Matsubayashi

Publikováno v: Journal of the Physical Society of Japan. 84:053701

We succeeded in growing single crystals of Eu2Ni3Ge5 and EuRhSi3 by the In-flux method, and measured the electrical resistivity under pressures. Both compounds are Eu-divalent antiferromagnets with the Neel temperatures TN = 18.6 and 47.7 K, respecti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b5ad90ca7624243162998151966a3f5
https://doi.org/10.7566/jpsj.84.053701