Nematic phase in the spin one two dimensional anisotropic antiferromagnet

被引：1

作者：

Pimenta, Talles H. ^{[1
]}

Pires, A. S. T. ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, Dept Fis, CP 702, BR-3012970 Belo Horizonte, MG, Brazil

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2018年 / 465卷

关键词：

Antiferromagnet; Quantum phase transition; Frustration; SQUARE LATTICE; QUANTUM;

D O I：

10.1016/j.jmmm.2018.05.065

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study quantum phase transitions in the anisotropic Heisenberg model with a pseudodipolar interaction on the square lattice, at zero temperature, using the SU(3) Schwinger boson technique in a mean field approximation. We present the dispersion relation for several values of the parameters. When we take into account the effect of the next near neighbor interaction, the phase diagram, at zero temperature shows the existence of a region in the intermediate frustrated regime, even for zero anisotropy parameter, where the system is magnetically disordered. A prediction of our model is the existence of a finite gap in this region.

引用

页码：58 / 63

页数：6

共 50 条

[1]

[Anonymous], 1999, PHYS REV B

[2]

Auerbach A, 2011, SPRINGER SER SOLID-S, V164, P365

[3] Specific heat of defects in the Haldane system Y2BaNiO5 [J].

Batista, CD ;

Hallberg, K ;

Aligia, AA .

PHYSICAL REVIEW B, 1998, 58 (14) :9248-9251

[4]

Baum A., ARXIV170908998

[5] Combining microscopic and macroscopic probes to untangle the single-ion anisotropy and exchange energies in an S=1 quantum antiferromagnet [J].

Brambleby, Jamie ;

Manson, Jamie L. ;

Goddard, Paul A. ;

Stone, Matthew B. ;

Johnson, Roger D. ;

Manuel, Pascal ;

Villa, Jacqueline A. ;

Brown, Craig M. ;

Lu, Helen ;

Chikara, Shalinee ;

Zapf, Vivien ;

Lapidus, Saul H. ;

Scatena, Rebecca ;

Macchi, Piero ;

Chen, Yu-sheng ;

Wu, Lai-Chin ;

Singleton, John .

PHYSICAL REVIEW B, 2017, 95 (13)

[6] Character of magnetic excitations in a quasi-one-dimensional antiferromagnet near the quantum critical points: Impact on magnetoacoustic properties [J].

Chiatti, O. ;

Sytcheva, A. ;

Wosnitza, J. ;

Zherlitsyn, S. ;

Zvyagin, A. A. ;

Zapf, V. S. ;

Jaime, M. ;

Paduan-Filho, A. .

PHYSICAL REVIEW B, 2008, 78 (09)

[7] Distinct magnetic regimes through site-selective atom substitution in the frustrated quantum antiferromagnet Cs2CuCl4-xBrx [J].

Cong, P. T. ;

Wolf, B. ;

de Souza, M. ;

Krueger, N. ;

Haghighirad, A. A. ;

Gottlieb-Schoenmeyer, S. ;

Ritter, F. ;

Assmus, W. ;

Opahle, I. ;

Foyevtsova, K. ;

Jeschke, H. O. ;

Valenti, R. ;

Wiehl, L. ;

Lang, M. .

PHYSICAL REVIEW B, 2011, 83 (06)

[8]

Jain A, 2017, NAT PHYS, V13, P633, DOI [10.1038/nphys4077, 10.1038/NPHYS4077]

[9] Phase diagram of the frustrated spatially-anisotropic S=1 antiferromagnet on a square lattice [J].

Jiang, H. C. ;

Kruger, F. ;

Moore, J. E. ;

Sheng, D. N. ;

Zaanen, J. ;

Weng, Z. Y. .

PHYSICAL REVIEW B, 2009, 79 (17)

[10]

Johnson Pascal Manuel, 2017, PHYS REV B, V95

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