High-field ESR Studies of the Quantum Spin Dimer System Ba3Cr2O8

被引：9
作者：
Kamenskyi, D. [1 ]
Wosnitza, J. [1 ]
Krzystek, J. [2 ]
Aczel, A. A. [3 ,4 ]
Dabkowska, H. A. [3 ]
Dabkowski, A. B. [3 ]
Luke, G. M. [3 ]
Zvyagin, S. A. [1 ]
机构：
[1] Helmholtz Zentrum Dresden Rossendorf, Dresden High Magnet Field Lab HLD, D-01328 Dresden, Germany
[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[3] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
[4] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Neutron Sci Directorate, Oak Ridge, TN 37831 USA
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2013年 / 170卷 / 5-6期
关键词：
Electron spin resonance; Field-induced phase transition; Dimers; SRCU2(BO3)(2); TLCUCL3; STATE;
D O I：
10.1007/s10909-012-0722-4
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Results of systematic high-frequency electron spin resonance (ESR) studies of Ba3Cr2O8, a weakly coupled dimer system, in magnetic fields up to 25 T are reported. Two pairs of ESR gapped modes corresponding to transitions from a spin-singlet ground state to the first excited triplet states with gaps, Delta (AB) =563 GHz and Delta (CD) =399 GHz, are revealed below H (c1)=12.5 T. The detection of the ground-state excitations by means of ESR clearly indicates the presence of a non-secular term allowing these transitions. A complex structure of the microwave absorption spectrum in magnetic fields above H (c1) is observed, those peculiarities are discussed.
引用
收藏
页码：231 / 235
页数：5
相关论文
共 14 条
  • [1] Crystal growth and characterization of the new spin dimer system Ba3Cr2O8
    Aczel, A. A.
    Dabkowska, H. A.
    Provencher, P. R.
    Luke, G. M.
    [J]. JOURNAL OF CRYSTAL GROWTH, 2008, 310 (04) : 870 - 873
  • [2] Bose-Einstein condensation of triplons in Ba3Cr2O8
    Aczel, A. A.
    Kohama, Y.
    Jaime, M.
    Ninios, K.
    Chan, H. B.
    Balicas, L.
    Dabkowska, H. A.
    Luke, G. M.
    [J]. PHYSICAL REVIEW B, 2009, 79 (10):
  • [3] Spin-resonance modes of the spin-gap magnet TlCuCl3 -: art. no. 184410
    Glazkov, VN
    Smirnov, AI
    Tanaka, H
    Oosawa, A
    [J]. PHYSICAL REVIEW B, 2004, 69 (18): : 184410 - 1
  • [4] Magnetic-field-induced condensation of triplons in Han Purple pigment BaCuSi2O6 -: art. no. 087203
    Jaime, M
    Correa, VF
    Harrison, N
    Batista, CD
    Kawashima, N
    Kazuma, Y
    Jorge, GA
    Stern, R
    Heinmaa, I
    Zvyagin, SA
    Sasago, Y
    Uchinokura, K
    [J]. PHYSICAL REVIEW LETTERS, 2004, 93 (08) : 087203 - 1
  • [5] Exact dimer ground state and quantized magnetization plateaus in the two-dimemsional spin system SrCu2(BO3)2
    Kageyama, H
    Yoshimura, K
    Stern, R
    Mushnikov, N
    Onizuka, K
    Kato, M
    Kosuge, K
    Slichter, CP
    Goto, T
    Ueda, Y
    [J]. PHYSICAL REVIEW LETTERS, 1999, 82 (15) : 3168 - 3171
  • [6] Magnetic-Field Induced Phase Transitions in a Weakly Coupled s=1/2 Quantum Spin Dimer System Ba3Cr2O8
    Kofu, M.
    Ueda, H.
    Nojiri, H.
    Oshima, Y.
    Zenmoto, T.
    Rule, K. C.
    Gerischer, S.
    Lake, B.
    Batista, C. D.
    Ueda, Y.
    Lee, S. -H.
    [J]. PHYSICAL REVIEW LETTERS, 2009, 102 (17)
  • [7] Weakly Coupled s=1/2 Quantum Spin Singlets in Ba3Cr2O8
    Kofu, M.
    Kim, J. -H.
    Ji, S.
    Lee, S. -H.
    Ueda, H.
    Qiu, Y.
    Kang, H. -J.
    Green, M. A.
    Ueda, Y.
    [J]. PHYSICAL REVIEW LETTERS, 2009, 102 (03)
  • [8] Singlet ground state and magnetic interactions in new spin dimer system Ba3Cr2O8
    Nakajima, Tomohiko
    Mitamura, Hiroyuki
    Ueda, Yutaka
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (05)
  • [9] Bose-Einstein condensation of dilute magnons in TlCuCl3
    Nikuni, T
    Oshikawa, M
    Oosawa, A
    Tanaka, H
    [J]. PHYSICAL REVIEW LETTERS, 2000, 84 (25) : 5868 - 5871
  • [10] 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
12