Development of Spin Correlations in the Geometrically Frustrated Triangular-Lattice Heisenberg Antiferromagnet CuCrO2

被引：10

作者：

Kajimoto, Ryoichi ^{[1
,2
]}

Tomiyasu, Keisuke ^{[3
]}

Nakajima, Kenji ^{[2
]}

Ohira-Kawamura, Seiko ^{[2
]}

Inamura, Yasuhiro ^{[2
]}

Okuda, Tetsuji ^{[4
]}

机构：

[1] CROSS, Res Ctr Neutron Sci & Technol, Tokai, Ibaraki 3191106, Japan

[2] Japan Atom Energy Agcy, J PARC Ctr, Tokai, Ibaraki 3191195, Japan

[3] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[4] Kagoshima Univ, Dept Nanostruct & Adv Mat, Kagoshima 8900065, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2015年 / 84卷 / 07期

关键词：

EXCITATIONS; MAGNET;

D O I：

10.7566/JPSJ.84.074708

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic excitations in the triangular-lattice Heisenberg antiferromagnet CuCrO2 were studied using single-crystal inelastic neutron scattering. A diffusive quasielastic component that persisted without developing a correlation length over a wide temperature range both below and above the ordering temperature was observed. Furthermore, characteristic momentum dependence was observed that was reproduced using minimum spin clusters. The robust spin clusters contrast with conventional magnetic ordering and may be universal in triangular-lattice Heisenberg antiferromagnets.

引用

页数：6

共 37 条

[1] RESONATING VALENCE BONDS - NEW KIND OF INSULATOR [J].

ANDERSON, PW .

MATERIALS RESEARCH BULLETIN, 1973, 8 (02) :153-160

[2]

Brown P. J., 2004, INT TABLES CRYSTALLO, VC

[3] Statics and dynamics of incommensurate spin order in a geometrically frustrated antiferromagnet CdCr2O4 -: art. no. 247204 [J].

Chung, JH ;

Matsuda, M ;

Lee, SH ;

Kakurai, K ;

Ueda, H ;

Sato, TJ ;

Takagi, H ;

Hong, KP ;

Park, S .

PHYSICAL REVIEW LETTERS, 2005, 95 (24)

[4] ON MAGNETIC-PROPERTIES OF SOME OXIDES WITH DELAFOSSITE-TYPE STRUCTURE [J].

DOUMERC, JP ;

WICHAINCHAI, A ;

AMMAR, A ;

POUCHARD, M ;

HAGENMULLER, P .

MATERIALS RESEARCH BULLETIN, 1986, 21 (06) :745-752

[5] Magnetic excitations in the geometric frustrated multiferroic CuCrO2 [J].

Frontzek, M. ;

Haraldsen, J. T. ;

Podlesnyak, A. ;

Matsuda, M. ;

Christianson, A. D. ;

Fishman, R. S. ;

Sefat, A. S. ;

Qiu, Y. ;

Copley, J. R. D. ;

Barilo, S. ;

Shiryaev, S. V. ;

Ehlers, G. .

PHYSICAL REVIEW B, 2011, 84 (09)

[6] Traces of Z2-Vortices in CuCrO2, AgCrO2, and PdCrO2 [J].

Hemmida, Mamoun ;

von Nidda, Hans-Albrecht Krug ;

Loidl, Alois .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2011, 80 (05)

[7] Magnetic excitations in triangular lattice NaCrO2 [J].

Hsieh, D. ;

Qian, D. ;

Berger, R. F. ;

Cava, R. J. ;

Lynn, J. W. ;

Huang, Q. ;

Hasan, M. Z. .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2008, 69 (12) :3174-3175

[8]

Inamura Y., 2010, P 19 M INT COLL ADV, P10

[9] Development status of software 'Utsusemi' for Chopper Spectrometers at MLF, J-PARC [J].

Inamura, Yasuhiro ;

Nakatani, Takeshi ;

Suzuki, Jiro ;

Otomo, Toshiya .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2013, 82

[10] Instability of a quantum spin liquid in an organic triangular-lattice antiferromagnet [J].

Itou, T. ;

Oyamada, A. ;

Maegawa, S. ;

Kato, R. .

NATURE PHYSICS, 2010, 6 (09) :673-676

← 1 2 3 4 →