Magnetic susceptibility of a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>plane in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi mathvariant="normal">La</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi mathvariant="normal">Cu</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mm

Tabunshchyk, K. V.; Gooding, R. J.

doi:10.1103/physrevb.71.214418

Cited by 17 publications

(47 citation statements)

References 30 publications

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“…A few remarks are in order now concerning the usefulness of the NLSM approach to the model ͑2͒ with respect to other approaches. 8,9,11 First, the action ͑9͒ allows one to easily track down the source of the anisotropic magnetic response, as coming from the term B · ͑D + ϫ n͒. In fact, depending on the directions of D + and of the applied field, there will be ͑or not͒ additional terms proportional to G ␣ in Eq.…”

Section: Magnetic Susceptibilitymentioning

confidence: 99%

Magnetic susceptibility anisotropies in a two-dimensional quantum Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions

et al. 2006

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Section: Magnetic Susceptibilitymentioning

confidence: 99%

Magnetic susceptibility anisotropies in a two-dimensional quantum Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions

et al. 2006

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“…For example, when a small magnetic field is applied perpendicular to the layers the magnetic susceptibility shows a strong enhancement as the Néel temperature is approached, due to the formation of these ferromagnetic moments. 8,12,13 When the field strength is further enhanced one can observe a spin flop of the ferromagnetic moments with respect to the out-of-plane staggered order that they display at zero field. 8,10,11 Analogously the spin-flop transition of the staggered in-plane AF moments for a field along the easy axis is accompanied by unconventional effects related to the presence of the DM interaction.…”

Section: Introductionmentioning

confidence: 99%

“…8,10,11 Analogously the spin-flop transition of the staggered in-plane AF moments for a field along the easy axis is accompanied by unconventional effects related to the presence of the DM interaction. 9,10 Recently new theoretical approaches have been proposed [12][13][14] to integrate the semiclassical picture already presented in the prior work of Refs. 7-10.…”

Section: Introductionmentioning

confidence: 99%

Field dependence of the magnetic spectrum in anisotropic and Dzyaloshinskii-Moriya antiferromagnets. I. Theory

Benfatto

Neto

2006

Phys. Rev. B

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We consider theoretically the effects of an applied uniform magnetic field on the magnetic spectrum of anisotropic two-dimensional and Dzyaloshinskii-Moriya layered quantum Heisenberg antiferromagnets. The former case is relevant for systems such as the two-dimensional square lattice antiferromagnet Sr 2 CuO 2 Cl 2 , while the latter is known to be relevant to the physics of the layered orthorhombic antiferromagnet La 2 CuO 4 . We first establish the correspondence between the low-energy spectrum obtained within the anisotropic nonlinear sigma model and by means of the spin-wave approximation for a standard easy-axis antiferromagnet. Then, we focus on the field-theory approach to calculate the magnetic-field dependence of the magnon gaps and spectral intensities for magnetic fields applied along the three possible crystallographic directions. We discuss the various possible ground states and their evolution with temperature for the different field orientations, and the occurrence of spin-flop transitions for fields perpendicular to the layers ͑transverse fields͒ as well as for fields along the easy axis ͑longitudinal fields͒. Measurements of the one-magnon Raman spectrum in Sr 2 CuO 2 Cl 2 and La 2 CuO 4 and a comparison between the experimental results and the predictions of the present theory will be reported in paper II of this research work ͓L. Benfatto et al., Phys. Rev. B 74, 024416 ͑2006͔͒.

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“…2,8,25,41 Each plane carries a weak ferromagnetic moment ͑WFM͒ which orders antiparallel in adjacent layers for T Ͻ T N . When the external field H ʈ c exceeds the spin-flip field H SF needed to overcome the interlayer coupling J Ќ , the spin lattice of every other layer rotates by = 180°so that the WFMs of all planes become parallel to the field.…”

Section: Magnetizationmentioning

confidence: 99%

Electronic interlayer coupling in the low-temperature tetragonal phase ofLa1.79Eu0.2Sr0.01
Hücker
¹

2009
Phys. Rev. B
3
0
4
0
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The electronic interlayer transport of the lightly doped antiferromagnet La 1.79 Eu 0.2 Sr 0.01 CuO 4 has been studied by means of magnetoresistance measurements. The central problem addressed concerns the differences between the electronic interlayer coupling in the tetragonal low-temperature ͑LTT͒ phase and the orthorhombic low-temperature ͑LTO͒ phase. The key observation is that the spin-flip-induced drop in the c-axis magnetoresistance of the LTO phase, which is characteristic for pure La 2−x Sr x CuO 4 , dramatically decreases in the LTT phase. The results show that the transition from orthorhombic to tetragonal symmetry and from collinear to noncollinear antiferromagnetic spin structure eliminates the strain dependent anisotropic interlayer hopping as well as the concomitant spin-valve-type transport channel. Implications for the stripe ordered LTT phase of La 2−x Ba x CuO 4 are briefly discussed.

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Magnetic susceptibility of aCuO2plane in theLa2CuO

Cited by 17 publications

References 30 publications

Magnetic susceptibility anisotropies in a two-dimensional quantum Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions

Magnetic susceptibility anisotropies in a two-dimensional quantum Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions

Field dependence of the magnetic spectrum in anisotropic and Dzyaloshinskii-Moriya antiferromagnets. I. Theory

Electronic interlayer coupling in the low-temperature tetragonal phase ofLa1.79Eu0.2Sr0.01
Hücker
¹

2009
Phys. Rev. B
3
0
4
0
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Magnetic susceptibility of aCuO2plane in theLa2CuO

Cited by 17 publications

References 30 publications

Magnetic susceptibility anisotropies in a two-dimensional quantum Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions

Magnetic susceptibility anisotropies in a two-dimensional quantum Heisenberg antiferromagnet with Dzyaloshinskii-Moriya interactions

Field dependence of the magnetic spectrum in anisotropic and Dzyaloshinskii-Moriya antiferromagnets. I. Theory

Electronic interlayer coupling in the low-temperature tetragonal phase ofLa1.79Eu0.2Sr0.01Hücker1 2009Phys. Rev. B3040View full textAdd to dashboardCite

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Electronic interlayer coupling in the low-temperature tetragonal phase ofLa1.79Eu0.2Sr0.01
Hücker
¹

2009
Phys. Rev. B
3
0
4
0
View full text Add to dashboard Cite