Superconducting, Fermi surface, and magnetic properties in SrTGe3and EuTGe3(T: transition metal) with the Rashba-type tetragonal structure

Masashi Kakihana; Hiromu Akamine; Keisuke Tomori; Kengo Nishimura; Atsushi Teruya; Ai Nakamura; Fuminori Honda; Dai Aoki; Miho Nakashima; Yasushi Amako; Kazuyuki Matsubayashi; Yoshiya Uwatoko; Tetsuya Takeuchi; Takanori Kida; Masayuki Hagiwara; Yoshinori Haga; Etsuji Yamamoto; Hisatomo Harima; Masato Hedo; Takao Nakama; Yoshichika Ōnuki

doi:10.1016/j.jallcom.2016.09.287

Superconducting, Fermi surface, and magnetic properties in SrTGe₃and EuTGe₃(T: transition metal) with the Rashba-type tetragonal structure

Masashi Kakihana, Hiromu Akamine, Keisuke Tomori, Kengo Nishimura, Atsushi Teruya, Ai Nakamura, Fuminori Honda, Dai Aoki, Miho Nakashima, Yasushi Amako, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Tetsuya Takeuchi, Takanori Kida, Masayuki Hagiwara, Yoshinori Haga, Etsuji Yamamoto, Hisatomo Harima, Masato Hedo, Takao NakamaYoshichika Ōnuki

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We succeeded in growing single crystals of SrTGe₃(T: transition metal) by the In-flux method and measured the electrical resistivity, specific heat, and de Haas–van Alphen (dHvA) effect. We confirmed superconductivity in SrPdGe₃and SrPtGe₃, which was previously observed using polycrystal samples, and also found superconductivity for SrRhGe₃, SrIrGe₃, and SrNiGe₃. Furthermore, from the results of dHvA experiments and energy band calculations, Fermi surfaces of SrIrGe₃are found to split into two similar Fermi surfaces, reflecting the Rashba-type non-centrosymmetric tetragonal structure. We also grew single crystals of EuTGe₃by the same In-flux method and studied magnetic properties, especially focusing on magnetism of EuIrGe₃with a Néel temperature T_N=12.2 K and a successive magnetic transition T'_N=7.3 K. The magnetic phase diagram of EuIrGe₃is found to consist of three antiferromagnetic phases named AF1, AF2, and AF3. A critical field H_creaching a saturated moment of 7 μ_B/Eu is determined as H_c≃ 160 kOe from a high-field magnetization curve. We proposed a simple helical magnetic structure based on the Dzyaloshinskii-Moriya interaction.

Original language	English
Pages (from-to)	439-451
Number of pages	13
Journal	Journal of Alloys and Compounds
Volume	694
DOIs	https://doi.org/10.1016/j.jallcom.2016.09.287
Publication status	Published - 2017
Externally published	Yes

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2016.09.287

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Kakihana, M., Akamine, H., Tomori, K., Nishimura, K., Teruya, A., Nakamura, A., Honda, F., Aoki, D., Nakashima, M., Amako, Y., Matsubayashi, K., Uwatoko, Y., Takeuchi, T., Kida, T., Hagiwara, M., Haga, Y., Yamamoto, E., Harima, H., Hedo, M., ... Ōnuki, Y. (2017). Superconducting, Fermi surface, and magnetic properties in SrTGe₃and EuTGe₃(T: transition metal) with the Rashba-type tetragonal structure. Journal of Alloys and Compounds, 694, 439-451. https://doi.org/10.1016/j.jallcom.2016.09.287

Kakihana, M, Akamine, H, Tomori, K, Nishimura, K, Teruya, A, Nakamura, A, Honda, F, Aoki, D, Nakashima, M, Amako, Y, Matsubayashi, K, Uwatoko, Y, Takeuchi, T, Kida, T, Hagiwara, M, Haga, Y, Yamamoto, E, Harima, H, Hedo, M, Nakama, T & Ōnuki, Y 2017, 'Superconducting, Fermi surface, and magnetic properties in SrTGe₃and EuTGe₃(T: transition metal) with the Rashba-type tetragonal structure', Journal of Alloys and Compounds, vol. 694, pp. 439-451. https://doi.org/10.1016/j.jallcom.2016.09.287

@article{b0d876385a384b229a90a8aeb88f2422,

title = "Superconducting, Fermi surface, and magnetic properties in SrTGe3and EuTGe3(T: transition metal) with the Rashba-type tetragonal structure",

abstract = "We succeeded in growing single crystals of SrTGe3(T: transition metal) by the In-flux method and measured the electrical resistivity, specific heat, and de Haas–van Alphen (dHvA) effect. We confirmed superconductivity in SrPdGe3and SrPtGe3, which was previously observed using polycrystal samples, and also found superconductivity for SrRhGe3, SrIrGe3, and SrNiGe3. Furthermore, from the results of dHvA experiments and energy band calculations, Fermi surfaces of SrIrGe3are found to split into two similar Fermi surfaces, reflecting the Rashba-type non-centrosymmetric tetragonal structure. We also grew single crystals of EuTGe3by the same In-flux method and studied magnetic properties, especially focusing on magnetism of EuIrGe3with a N{\'e}el temperature TN=12.2 K and a successive magnetic transition T'N=7.3 K. The magnetic phase diagram of EuIrGe3is found to consist of three antiferromagnetic phases named AF1, AF2, and AF3. A critical field Hcreaching a saturated moment of 7 μB/Eu is determined as Hc≃ 160 kOe from a high-field magnetization curve. We proposed a simple helical magnetic structure based on the Dzyaloshinskii-Moriya interaction.",

author = "Masashi Kakihana and Hiromu Akamine and Keisuke Tomori and Kengo Nishimura and Atsushi Teruya and Ai Nakamura and Fuminori Honda and Dai Aoki and Miho Nakashima and Yasushi Amako and Kazuyuki Matsubayashi and Yoshiya Uwatoko and Tetsuya Takeuchi and Takanori Kida and Masayuki Hagiwara and Yoshinori Haga and Etsuji Yamamoto and Hisatomo Harima and Masato Hedo and Takao Nakama and Yoshichika Ōnuki",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Numbers 16H01078 , 25610097 , 16K05453 , 15H05886 , 25400342 , 25247055 , 15H05884 , 15H05882 , 16H04006 . Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.jallcom.2016.09.287",

language = "English",

volume = "694",

pages = "439--451",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Superconducting, Fermi surface, and magnetic properties in SrTGe3and EuTGe3(T

T2 - transition metal) with the Rashba-type tetragonal structure

AU - Kakihana, Masashi

AU - Akamine, Hiromu

AU - Tomori, Keisuke

AU - Nishimura, Kengo

AU - Teruya, Atsushi

AU - Nakamura, Ai

AU - Honda, Fuminori

AU - Aoki, Dai

AU - Nakashima, Miho

AU - Amako, Yasushi

AU - Matsubayashi, Kazuyuki

AU - Uwatoko, Yoshiya

AU - Takeuchi, Tetsuya

AU - Kida, Takanori

AU - Hagiwara, Masayuki

AU - Haga, Yoshinori

AU - Yamamoto, Etsuji

AU - Harima, Hisatomo

AU - Hedo, Masato

AU - Nakama, Takao

AU - Ōnuki, Yoshichika

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant Numbers 16H01078 , 25610097 , 16K05453 , 15H05886 , 25400342 , 25247055 , 15H05884 , 15H05882 , 16H04006 . Publisher Copyright: © 2016 Elsevier B.V.

PY - 2017

Y1 - 2017

N2 - We succeeded in growing single crystals of SrTGe3(T: transition metal) by the In-flux method and measured the electrical resistivity, specific heat, and de Haas–van Alphen (dHvA) effect. We confirmed superconductivity in SrPdGe3and SrPtGe3, which was previously observed using polycrystal samples, and also found superconductivity for SrRhGe3, SrIrGe3, and SrNiGe3. Furthermore, from the results of dHvA experiments and energy band calculations, Fermi surfaces of SrIrGe3are found to split into two similar Fermi surfaces, reflecting the Rashba-type non-centrosymmetric tetragonal structure. We also grew single crystals of EuTGe3by the same In-flux method and studied magnetic properties, especially focusing on magnetism of EuIrGe3with a Néel temperature TN=12.2 K and a successive magnetic transition T'N=7.3 K. The magnetic phase diagram of EuIrGe3is found to consist of three antiferromagnetic phases named AF1, AF2, and AF3. A critical field Hcreaching a saturated moment of 7 μB/Eu is determined as Hc≃ 160 kOe from a high-field magnetization curve. We proposed a simple helical magnetic structure based on the Dzyaloshinskii-Moriya interaction.

AB - We succeeded in growing single crystals of SrTGe3(T: transition metal) by the In-flux method and measured the electrical resistivity, specific heat, and de Haas–van Alphen (dHvA) effect. We confirmed superconductivity in SrPdGe3and SrPtGe3, which was previously observed using polycrystal samples, and also found superconductivity for SrRhGe3, SrIrGe3, and SrNiGe3. Furthermore, from the results of dHvA experiments and energy band calculations, Fermi surfaces of SrIrGe3are found to split into two similar Fermi surfaces, reflecting the Rashba-type non-centrosymmetric tetragonal structure. We also grew single crystals of EuTGe3by the same In-flux method and studied magnetic properties, especially focusing on magnetism of EuIrGe3with a Néel temperature TN=12.2 K and a successive magnetic transition T'N=7.3 K. The magnetic phase diagram of EuIrGe3is found to consist of three antiferromagnetic phases named AF1, AF2, and AF3. A critical field Hcreaching a saturated moment of 7 μB/Eu is determined as Hc≃ 160 kOe from a high-field magnetization curve. We proposed a simple helical magnetic structure based on the Dzyaloshinskii-Moriya interaction.

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U2 - 10.1016/j.jallcom.2016.09.287

DO - 10.1016/j.jallcom.2016.09.287

M3 - Article

AN - SCOPUS:84995793013

SN - 0925-8388

VL - 694

SP - 439

EP - 451

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Superconducting, Fermi surface, and magnetic properties in SrTGe₃and EuTGe₃(T: transition metal) with the Rashba-type tetragonal structure

Abstract

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