Quantum magnetic properties of the spin-1/2 triangular-lattice antiferromagnet Ba2La2CoTe2O12

被引：27

作者：

Kojima, Yuki ^{[1
]}

Watanabe, Masari ^{[1
]}

Kurita, Nobuyuki ^{[1
]}

Tanaka, Hidekazu ^{[1
]}

Matsuo, Akira ^{[2
]}

Kindo, Koichi ^{[2
]}

Avdeev, Maxim ^{[3
,4
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

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

[3] Australian Nucl Sci & Technol Org, Lucas Heights, NSW 2234, Australia

[4] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 17期

基金：

日本学术振兴会;

关键词：

HEISENBERG-ANTIFERROMAGNET; LIQUID STATE; ORDER; FIELD;

D O I：

10.1103/PhysRevB.98.174406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the crystal structure of Ba2La2CoTe2O12 determined by Rietveld analysis using x-ray powder-diffraction data. It was found from magnetic measurements that Ba2La2CoTe2O12 can be described as a spin-1/2 triangular-lattice antiferromagnet with easy-plane anisotropy at low temperatures. This compound undergoes a magnetic phase transition at T-N = 3.26 K to an ordered state with the 120 degrees structure. The magnetization curve exhibits the one-third plateau characteristic of triangular-lattice quantum antiferromagnets. The antiferromagnetic exchange interaction and the g factors parallel and perpendicular to the c axis were evaluated to be J/k(B) = 22 K, g(parallel to) = 3.5, and g(perpendicular to) = 4.5, respectively.

引用

页数：8

共 50 条

[21] Magnetic phase diagram of the S=1/2 triangular-lattice Heisenberg antiferromagnet Ba3CoNb2O9
Yokota, Kazuya
Kurita, Nobuyuki
Tanaka, Hidekazu
PHYSICAL REVIEW B, 2014, 90 (01):
[22] Quantum phase transition in square- and triangular-lattice spin-1/2 antiferromagnets
Zeng, C
Staples, I
Bishop, RF
PHYSICAL REVIEW B, 1996, 53 (14): : 9168 - 9171
[23] Properties of spin-1/2 triangular-lattice antiferromagnets CuY2Ge2O8 and CuLa2Ge2O8
Cho, Hwanbeom
Kratochvilova, Marie
Sim, Hasung
Choi, Ki-Young
Kim, Choong Hyun
Paulsen, Carley
Avdeev, Maxim
Peets, Darren C.
Jo, Younghun
Lee, Sanghyun
Noda, Yukio
Lawler, Michael J.
Park, Je-Geun
PHYSICAL REVIEW B, 2017, 95 (14)
[24] Possible itinerant excitations and quantum spin state transitions in the effective spin-1/2 triangular-lattice antiferromagnet Na2BaCo(PO4)2
Li, N.
Huang, Q.
Yue, X. Y.
Chu, W. J.
Chen, Q.
Choi, E. S.
Zhao, X.
Zhou, H. D.
Sun, X. F.
NATURE COMMUNICATIONS, 2020, 11 (01)
[25] Possible itinerant excitations and quantum spin state transitions in the effective spin-1/2 triangular-lattice antiferromagnet Na2BaCo(PO4)2
N. Li
Q. Huang
X. Y. Yue
W. J. Chu
Q. Chen
E. S. Choi
X. Zhao
H. D. Zhou
X. F. Sun
Nature Communications, 11
[26] SPIN-1/2 QUANTUM ANTIFERROMAGNETS ON THE TRIANGULAR LATTICE
LEUNG, PW
RUNGE, KJ
PHYSICAL REVIEW B, 1993, 47 (10): : 5861 - 5873
[27] Ferrimagnetism in the Spin-1/2 Heisenberg Antiferromagnet on a Distorted Triangular Lattice
Nakano, Hiroki
Sakai, Toru
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2017, 86 (06)
[28] NaYbS2: A planar spin-1/2 triangular-lattice magnet and putative spin liquid
Baenitz, M.
Schlender, Ph.
Sichelschmidt, J.
Onykiienko, Y. A.
Zangeneh, Z.
Ranjith, K. M.
Sarkar, R.
Hozoi, L.
Walker, H. C.
Orain, J. -C.
Yasuoka, H.
van den Brink, J.
Klauss, H. H.
Inosov, D. S.
Doert, Th.
PHYSICAL REVIEW B, 2018, 98 (22)
[29] High field magnetic properties of the triangular-lattice antiferromagnet AgCrS2
Li, Hexuan
Gao, Wenshuai
Shi, Liran
Ouyang, Zhongwen
Xia, Zhengcai
Wang, Zhe
Liu, Bingjie
Zou, Youming
Yu, Lu
Zhang, Lei
Pi, Li
Qu, Zhe
Zhang, Yuheng
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2019, 489
[30] Collective and local excitations in Ba2CoTeO6: A composite system of a spin-1/2 triangular-lattice Heisenberg antiferromagnet and a honeycomb-lattice J1 - J2 Ising antiferromagnet
Chanlert, Purintorn
Kurita, Nobuyuki
Tanaka, Hidekazu
Kimata, Motoi
Nojiri, Hiroyuki
PHYSICAL REVIEW B, 2017, 96 (06)

← 1 2 3 4 5 →