Highly anisotropic magnetic phase diagram of a 2-dimensional orthogonal dimer system TmB4

F. Iga; A. Shigekawa; Y. Hasegawa; S. Michimura; T. Takabatake; S. Yoshii; T. Yamamoto; M. Hagiwara; K. Kindo

doi:10.1016/j.jmmm.2006.10.476

Highly anisotropic magnetic phase diagram of a 2-dimensional orthogonal dimer system TmB₄

F. Iga, A. Shigekawa, Y. Hasegawa, S. Michimura, T. Takabatake, S. Yoshii, T. Yamamoto, M. Hagiwara, K. Kindo

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

52 Citations (Scopus)

Abstract

We have measured magnetization processes of a Shastry-Sutherland lattice (SSL) TmB₄. For B∥c, plateaus appear at frac(1, 8) and frac(1, 2) of the full moment 7 μ_B/Tm at 1.7-1.4 and 2-3 T, respectively. For B∥a, a metamagnetic transition occurs at ∼30 T which is followed by a frac(1, 2) plateau at ∼32 T. These plateaus are originated from geometric frustration effect in SSL. Magnetic field and temperature dependences of magnetoresistance and specific heat were also measured in detail below T_N=11.7 K. The magnetic phase diagram possesses complex features which have an antiferromagnetic phase, spin flop saturated one, and a few additional phases by long periodic modulations originated from frustration effect in SSL.

Original language	English
Pages (from-to)	e443-e445
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 2
DOIs	https://doi.org/10.1016/j.jmmm.2006.10.476
Publication status	Published - 2007 Mar
Externally published	Yes

Keywords

Geometric frustration
Shastry-Sutherland lattice
TmB

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2006.10.476

Cite this

@article{555f7cdc73634363bf98db5b4d1578bd,

title = "Highly anisotropic magnetic phase diagram of a 2-dimensional orthogonal dimer system TmB4",

abstract = "We have measured magnetization processes of a Shastry-Sutherland lattice (SSL) TmB4. For B∥c, plateaus appear at frac(1, 8) and frac(1, 2) of the full moment 7 μB/Tm at 1.7-1.4 and 2-3 T, respectively. For B∥a, a metamagnetic transition occurs at ∼30 T which is followed by a frac(1, 2) plateau at ∼32 T. These plateaus are originated from geometric frustration effect in SSL. Magnetic field and temperature dependences of magnetoresistance and specific heat were also measured in detail below TN=11.7 K. The magnetic phase diagram possesses complex features which have an antiferromagnetic phase, spin flop saturated one, and a few additional phases by long periodic modulations originated from frustration effect in SSL.",

keywords = "Geometric frustration, Shastry-Sutherland lattice, TmB",

author = "F. Iga and A. Shigekawa and Y. Hasegawa and S. Michimura and T. Takabatake and S. Yoshii and T. Yamamoto and M. Hagiwara and K. Kindo",

note = "Funding Information: This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for COE(13CE2002), (15072205) and Fundamental Research C(16540319).",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.10.476",

language = "English",

volume = "310",

pages = "e443--e445",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "2 SUPPL. PART 2",

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T1 - Highly anisotropic magnetic phase diagram of a 2-dimensional orthogonal dimer system TmB4

AU - Iga, F.

AU - Shigekawa, A.

AU - Hasegawa, Y.

AU - Michimura, S.

AU - Takabatake, T.

AU - Yoshii, S.

AU - Yamamoto, T.

AU - Hagiwara, M.

AU - Kindo, K.

N1 - Funding Information: This research was partially supported by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for COE(13CE2002), (15072205) and Fundamental Research C(16540319).

PY - 2007/3

Y1 - 2007/3

N2 - We have measured magnetization processes of a Shastry-Sutherland lattice (SSL) TmB4. For B∥c, plateaus appear at frac(1, 8) and frac(1, 2) of the full moment 7 μB/Tm at 1.7-1.4 and 2-3 T, respectively. For B∥a, a metamagnetic transition occurs at ∼30 T which is followed by a frac(1, 2) plateau at ∼32 T. These plateaus are originated from geometric frustration effect in SSL. Magnetic field and temperature dependences of magnetoresistance and specific heat were also measured in detail below TN=11.7 K. The magnetic phase diagram possesses complex features which have an antiferromagnetic phase, spin flop saturated one, and a few additional phases by long periodic modulations originated from frustration effect in SSL.

AB - We have measured magnetization processes of a Shastry-Sutherland lattice (SSL) TmB4. For B∥c, plateaus appear at frac(1, 8) and frac(1, 2) of the full moment 7 μB/Tm at 1.7-1.4 and 2-3 T, respectively. For B∥a, a metamagnetic transition occurs at ∼30 T which is followed by a frac(1, 2) plateau at ∼32 T. These plateaus are originated from geometric frustration effect in SSL. Magnetic field and temperature dependences of magnetoresistance and specific heat were also measured in detail below TN=11.7 K. The magnetic phase diagram possesses complex features which have an antiferromagnetic phase, spin flop saturated one, and a few additional phases by long periodic modulations originated from frustration effect in SSL.

KW - Geometric frustration

KW - Shastry-Sutherland lattice

KW - TmB

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