High-field magnetization of the pyrochlore compound Gd2Ti2O7

被引：0

作者：

Narumi, Yasuo ^{[1
,2
]}

Kikkawa, Akiko ^{[2
]}

Katsumata, Koichi ^{[2
]}

Honda, Zentaro ^{[3
]}

Hagiwara, Masayuki ^{[4
]}

Kindo, Koichi ^{[1
]}

机构：

[1] Univ Tokyo, ISSP, Kashiwa, Chiba 2778581, Japan

[2] RIKEN, Harima Inst, Mikazuki, Hyogo, Japan

[3] Saitama Univ, Fac Engn, Saitama, Japan

[4] Osaka Univ, KYOKUGEN, Osaka, Japan

来源：

LOW TEMPERATURE PHYSICS, PTS A AND B | 2006年 / 850卷

关键词：

magnetization; pyrochlore; geometrical frustration;

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

High-field magnetization measurements have been preformed on a single crystal sample of the pyrochlore compound Gd2Ti2O7 using a pulse magnet in conjunction with a dilution refrigerator. The magnetization curve at 0.3 K reveals two magnetic phase transitions when the magnetic field is applied along [I 11]. At temperatures slightly above T-N, a magnetization plateau appears around 5 T and the magnetization increases again from about 15 T with a convex curvature. It is considered that this crossover is due to a competition among thermal fluctuations, short-range antiferromagnetic ordering and geometrical frustration.

引用

页码：1113 / +

页数：2

共 6 条

[1] Order in the Heisenberg pyrochlore:: The magnetic structure of Gd2Ti2O7 -: art. no. 140407 [J].

Champion, JDM ;

Wills, AS ;

Fennell, T ;

Bramwell, ST ;

Gardner, JS ;

Green, MA .

PHYSICAL REVIEW B, 2001, 64 (14) :1404071-1404074

[2] Macroscopic anisotropy and symmetry breaking in the pyrochlore antiferromagnet Gd2Ti2O7 -: art. no. 214432 [J].

Hassan, AK ;

Lévy, LP ;

Darie, C ;

Strobel, P .

PHYSICAL REVIEW B, 2003, 67 (21)

[3]

NARUMI Y, DETAILS TEMPERATURE

[4] Magnetic phase diagram of the antiferromagnetic pyrochlore Gd2Ti2O7 -: art. no. 012402 [J].

Petrenko, OA ;

Lees, MR ;

Balakrishnan, G ;

Paul, DM .

PHYSICAL REVIEW B, 2004, 70 (01) :012402-1

[5] Transition to long-range magnetic order in the highly frustrated insulating pyrochlore antiferromagnet Gd2Ti2O7 [J].

Raju, NP ;

Dion, M ;

Gingras, MJP ;

Mason, TE ;

Greedan, JE .

PHYSICAL REVIEW B, 1999, 59 (22) :14489-14498

[6] Multiple field-induced phase transitions in the geometrically frustrated dipolar magnet:: Gd2Ti2O7 -: art. no. 067202 [J].

Ramirez, AP ;

Shastry, BS ;

Hayashi, A ;

Krajewski, JJ ;

Huse, DA ;

Cava, RJ .

PHYSICAL REVIEW LETTERS, 2002, 89 (06) :067202/1-067202/4

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