Charge-stripe order, antiferromagnetism, and spin dynamics in the cuprate-analog nickelate La_4Ni_3O_8

Bernal O. O.; MacLaughlin D. E.; Morris G. D.; Ho P-C; Shu Lei; Tan C.; Zhang J.; Ding Z.; Huang K.; Poltavets V. V.

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Charge-stripe order, antiferromagnetism, and spin dynamics in the cuprate-analog nickelate La_4Ni_3O_8

机译：铜酸盐 - 模拟镍La_4ni_3O_8中的充电条纹顺序，反铁磁性和旋转动力学

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We report results of a muon spin rotation (mu SR) study of the cuprate-analog nickelate La4Ni3O8, which undergoes a transition at 105 K to a low-temperature phase with charge-stripe and antiferromagnetic (AFM) order on square planar NiO2 layers. Zero-field mu SR shows that the AFM transition is abrupt, commensurate, and has a quasi-two-dimensional character below similar to 25 K. Comparison of observed muon precession frequencies with Ni dipolar field calculations yields Ni moments less than or similar to 0.5 mu(B). Dynamic muon spin relaxation above 105 K suggests critical slowing of Ni spin fluctuations, but is inconsistent with corresponding La-139 NMR results. Critical slowing and an abrupt transition are also observed in the planar cuprate AFM La2CuO4+delta, where they are taken as evidence for weakly interplanar-coupled two-dimensional AFM spin fluctuations, but our mu SR data do not agree quantitatively with theoretical predictions for this scenario when applied to the nickelate.

机译：我们报告了铜旋转旋转（MU SR）研究的铜酸酯 - 模拟镍La4Ni3O8的结果，该研究在105K处经历过渡到低温相，在方形平面NiO 2层上用电荷条纹和反铁磁（AFM）顺序。零场MU SR表明，AFM转换突然，相应的，并且具有与25k类似的准二维字符。观察到的MUON预防频率与Ni Dipolar场计算的比较产生的Ni矩小于或类似于0.5 mu（b）。 105 k以上的动态μ子旋转松弛表明Ni旋转波动的临界放缓，但与相应的LA-139 NMR结果不一致。在Planar铜替代AFM La2Cuo4 +三角洲也观察到临界慢速和突然的转变，其中它们被认为是弱平面耦合的二维AFM旋转波动的证据，但我们的MU SR数据与其的理论预测不同意应用于镍酯时的情景。

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来源
《Physical review》 |2019年第12期|125142.1-125142.16|共16页
作者
Bernal O. O.; MacLaughlin D. E.; Morris G. D.; Ho P-C; Shu Lei; Tan C.; Zhang J.; Ding Z.; Huang K.; Poltavets V. V.;
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Calif State Univ Los Angeles Dept Phys & Astron Los Angeles CA 90032 USA;

Univ Calif Riverside Dept Phys & Astron Riverside CA 92521 USA;

TRIUMF Ctr Mol & Mat Sci Vancouver BC V6T 2A3 Canada;

Calif State Univ Fresno Dept Phys Fresno CA 93740 USA;

Fudan Univ Dept Phys State Key Lab Surface Phys Shanghai 200433 Peoples R China;

Fudan Univ Dept Phys State Key Lab Surface Phys Shanghai 200433 Peoples R China;

Fudan Univ Dept Phys State Key Lab Surface Phys Shanghai 200433 Peoples R China|Stanford Univ Geballe Lab Adv Mat Stanford CA 94305 USA;

Fudan Univ Dept Phys State Key Lab Surface Phys Shanghai 200433 Peoples R China;

Fudan Univ Dept Phys State Key Lab Surface Phys Shanghai 200433 Peoples R China|Lawrence Livermore Natl Lab Livermore CA 94550 USA;

Univ New Orleans Dept Chem & Adv Mat Res Inst New Orleans LA 70148 USA;

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1. Charge-stripe order, antiferromagnetism, and spin dynamics in the cuprate-analog nickelate La4Ni3O8 [J] . Bernal O. O., MacLaughlin D. E., Morris G. D., Physical review, B . 2019,第12期

机译：铜酸盐 - 模拟镍La4Ni3O8中的电荷条纹顺序，反铁磁体和旋转动力学
2. Critical spin dynamics in the antiferromagnet La_4Ni_3O_8 from ~(139)La nuclear magnetic resonance [J] . Nicholas ApRoberts-Warren, Adam P. Dioguardi, Viktor V. Poltavets, Physical review . 2011,第1期

机译：〜（139）La核磁共振反铁磁体La_4Ni_3O_8的临界自旋动力学
3. Thermodynamics of spin-1/2 antiferromagnet-antiferromagnet-ferromagnet and ferromagnet-ferromagnet-antiferromagnet trimerized quantum Heisenberg chains [J] . Bo Gu, Gang Su, Song Gao Physical review. B, Condensed Matter And Materials Physics . 2006,第13期

机译：自旋1/2反铁磁-反铁磁-铁磁和铁磁-铁磁-反铁磁三聚量子海森堡链的热力学
4. Micromagnetic simulations of spin-Hall driven dynamics in an antiferromagnet. [C] . V. Puliafito, M. Carpentieri, B. Azzerboni, IEEE International Magnetics Conference . 2018

机译：反铁磁体中自旋霍尔驱动动力学的微磁仿真。
5. Spin dynamics in the quasi-one-dimensional S = 1/2 Heisenberg antiferromagnet copper benzoate. [D] . Dender, Daniel Cox. 1998

机译：准一维S = 1/2 Heisenberg反铁磁体苯甲酸铜中的自旋动力学。
6. Ultrafast spin dynamics and switching via spin transfer torque in antiferromagnets with weak ferromagnetism [O] . Tae Heon Kim, Peter Grünberg, Song Hee Han, -1

机译：具有弱铁磁性的反铁磁体具有超快的自旋动力学和通过自旋传递转矩进行切换
7. V-2 Spin Dynamics in Low Dimensional Antiferromagnets―Spin-nematic Interaction in Square-lattice Antiferromagnet Ba₂CoGe₂O₇― [O] . Takatsugu MASUDA 2015

机译：低尺寸反晶片中的V-2旋转动力学 - 方形晶格反霉素BA _{2 Coge _{2 O _{7 -}}}

Charge-stripe order, antiferromagnetism, and spin dynamics in the cuprate-analog nickelate La_4Ni_3O_8

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