Ferromagnetism and re-entrant spin-glass transition in quasicrystal approximants Au-SM-Gd (SM = Si, Ge)

被引：52

作者：

Hiroto, T. ^{[1
]}

Gebresenbut, G. H. ^{[2
]}

Gomez, C. Pay ^{[2
]}

Muro, Y. ^{[3
]}

Isobe, M. ^{[4
]}

Ueda, Y. ^{[4
]}

Tokiwa, K. ^{[5
]}

Tamura, R. ^{[1
]}

机构：

[1] Tokyo Univ Sci, Dept Mat Sci & Technol, Niiju Ku, Tokyo 1258585, Japan

[2] Uppsala Univ, Dept Chem Angstrom, SE-75121 Uppsala, Sweden

[3] Toyama Prefectural Univ, Toyama 9390398, Japan

[4] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[5] Tokyo Univ Sci, Dept Appl Elect, Niiju Ku, Tokyo 1258585, Japan

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2013年 / 25卷 / 42期

基金：

日本学术振兴会;

关键词：

ZN; TB; ORDER; CD; TM; HO;

D O I：

10.1088/0953-8984/25/42/426004

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Magnetic susceptibility and specific heat measurements on quasicrystalline approximants Au-Si-Gd and Au-Ge-Gd reveal that a ferromagnetic (FM) transition occurs at T-c = 22.5(5) K for Au-Si-Gd and at T-c = 13(1) K for Au-Ge-Gd, which are the first examples of ferromagnetism in crystalline approximants. In addition, a re-entrant spin-glass (RSG) transition is observed at T-RSG = 3.3 K for Au-Ge-Gd in contrast to Au-Si-Gd. The different behaviors are understood based on the recent structural models reported by Gebresenbut et al (2013 J. Phys.: Condens. Matter 25 135402). The RSG transition in Au-Ge-Gd is attributed to a random occupation of the center of the Gd-12 icosahedron by Gd atoms; a central Gd spin hinders the long-range FM order.

引用

页数：6

共 17 条

[1] Magnetic and transport properties of single-grain R-Mg-Zn icosahedral quasicrystals [R = Y, (Y1-xGdx), (Y1-xTbx), Tb, Dy, Ho, and Er] [J].

Fisher, IR ;

Cheon, KO ;

Panchula, AF ;

Canfield, PC ;

Chernikov, M ;

Ott, HR ;

Dennis, K .

PHYSICAL REVIEW B, 1999, 59 (01) :308-321

[2] Syntheses optimization, structural and thermoelectric properties of 1/1 Tsai-type quasicrystal approximants in RE-Au-SM systems (RE = Yb, Gd and SM = Si, Ge) [J].

Gebresenbut, Girma Hailu ;

Tamura, Ryuji ;

Eklof, Daniel ;

Gomez, Cesar Pay .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2013, 25 (13)

[3]

Goldman AI, 2013, NAT MATER, V12, P714, DOI [10.1038/NMAT3672, 10.1038/nmat3672]

[4] Comparative structural study of the disordered MCd6 quasicrystal approximants -: art. no. 024203 [J].

Gómez, CP ;

Lidin, S .

PHYSICAL REVIEW B, 2003, 68 (02)

[5] Dynamic susceptibility of a reentrant ferromagnet [J].

Jonason, K ;

Mattsson, J ;

Nordblad, P .

PHYSICAL REVIEW B, 1996, 53 (10) :6507-6513

[6] Magnetic behavior of Fe and Tm in Zn-Fe-Sc-Tm icosahedral quasicrystals [J].

Kashimoto, Shiro ;

Masuda, Chihiro ;

Ishimasa, Tsutomu .

ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 2009, 224 (1-2) :59-63

[7] Antiferromagnetic order in the quasicrystal approximant Cd6Tb studied by x-ray resonant magnetic scattering [J].

Kim, M. G. ;

Beutier, G. ;

Kreyssig, A. ;

Hiroto, T. ;

Yamada, T. ;

Kim, J. W. ;

de Boissieu, M. ;

Tamura, R. ;

Goldman, A. I. .

PHYSICAL REVIEW B, 2012, 85 (13)

[8] Antiferromagnetic order and the structural order-disorder transition in the Cd6Ho quasicrystal approximant [J].

Kreyssig, Andreas ;

Beutier, Guillaume ;

Hiroto, Takanobu ;

Kim, Min Gyu ;

Tucker, Gregory S. ;

de Boissieu, Marc ;

Tamura, Ryuji ;

Goldman, Alan I. .

PHILOSOPHICAL MAGAZINE LETTERS, 2013, 93 (09) :512-520

[9] VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data [J].

Momma, Koichi ;

Izumi, Fujio .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2011, 44 :1272-1276

[10] Electrical and Magnetic Properties of Quasicrystal Approximants RCd6 (R: Rare Earth) [J].

Mori, Akinobu ;

Ota, Hisashi ;

Yoshiuchi, Shingo ;

Iwakawa, Ken ;

Taga, Yuki ;

Hirose, Yusuke ;

Takeuchi, Tetsuya ;

Yamamoto, Etsuji ;

Haga, Yoshinori ;

Honda, Fuminori ;

Settai, Rikio ;

Onuki, Yoshichika .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2012, 81 (02)

← 1 2 →