High-field ESR in a two-dimensional S=1 spin system Ni5(TeO3)4Br2

被引：12

作者：

Arcon, Denis

Zorko, Andrej

Pregelj, Matej

Dolinsek, Janez

Berger, Helmuth

Ozarowski, Andrew

van Tool, Hans

Brunel, Louis Claude

机构：

[1] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia

[2] Jozef Stefan Inst, Ljubljana 1000, Slovenia

[3] Ecole Polytech Fed Lausanne, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland

[4] Natl High Magnet Field Lab, Tallahassee, FL USA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 316卷 / 02期

关键词：

antiferromagnet; geometrical frustration; antiferromagnetic;

D O I：

10.1016/j.jmmm.2007.02.143

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single crystals of a transition-metal tellurium oxy-bromide Ni-5(TeO3)(4)Br-2 with a layered arrangement of Ni (2+) (S = 1) ions have been investigated with a high-frequency electron spin resonance (ESR). Strongly temperature-dependent resonance signal has been found only at temperatures lower than T-c2 = 15 K. The measured signal exhibits a dramatic narrowing and a complex temperature dependence of the resonance center on cooling. The magnetic resonance results also indicate a zero-field gap omega(g) = 450 GHz. The results are discussed in connection with the structural and magnetic susceptibility data. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：E349 / E351

页数：3

共 10 条

[1] ARCON D, UNPUB
[2] Longitudinal magnon in the tetrahedral spin system Cu2Te2O5Br2 near quantum criticality -: art. no. 174405
Gros, C
Lemmens, P
Vojta, M
Valentí, R
Choi, KY
Kageyama, H
Hiroi, Z
Mushnikov, NV
Goto, T
Johnsson, M
Millet, P
[J]. PHYSICAL REVIEW B, 2003, 67 (17):
[3] Ultrawide band multifrequency high-field EMR technique: A methodology for increasing spectroscopic information
Hassan, AK
Pardi, LA
Krzystek, J
Sienkiewicz, A
Goy, P
Rohrer, M
Brunel, LC
[J]. JOURNAL OF MAGNETIC RESONANCE, 2000, 142 (02) : 300 - 312
[4] Crystal structure and magnetic properties of a new two-dimensional S=1 quantum spin system Ni5(TeO3)4X2 (X = Cl, Br)
Johnsson, M
Törnroos, KW
Lemmens, P
Millet, P
[J]. CHEMISTRY OF MATERIALS, 2003, 15 (01) : 68 - 73
[5] Tetrahedral clusters of copper(II):: Crystal structures and magnetic properties of Cu2Te2O5X2 (X = Cl, Br)
Johnsson, M
Törnroos, KW
Mila, F
Millet, P
[J]. CHEMISTRY OF MATERIALS, 2000, 12 (10) : 2853 - 2857
[6] THEORY OF ANTIFERROMAGNETIC RESONANCE
KEFFER, F
KITTEL, C
[J]. PHYSICAL REVIEW, 1952, 85 (02): : 329 - 337
[7] RVB description of the low-energy singlets of the spin 1/2 kagome antiferromagnet
Mambrini, M
Mila, F
[J]. EUROPEAN PHYSICAL JOURNAL B, 2000, 17 (04) : 651 - 659
[8] Quantum spin liquids
Mila, Frederic
[J]. European Journal of Physics, 2000, 21 (06) : 499 - 510
[9] ESR study on the excited state energy spectrum of SrCu2(BO3)2 -: A central role of multiple-triplet bound states
Nojiri, H
Kageyama, H
Ueda, Y
Motokawa, M
[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2003, 72 (12) : 3243 - 3253
[10] A quasioptical transient electron spin resonance spectrometer operating at 120 and 240 GHzL
van Tol, J
Brunel, LC
Wylde, RJ
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2005, 76 (07)

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