Antiferromagnetic stacking of ferromagnetic layers and doping-controlled phase competition in Ca_(1-x)Sr_xCo_(2-y)As_2

Li Bing; Sizyuk Y.; Sangeetha N. S.; Wilde J. M.; Das P.; Tian W.; Johnston D. C.; Goldman A. I; Kreyssig A.; Orth P. P.; McQueeney R. J.; Ueland B. G.

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Antiferromagnetic stacking of ferromagnetic layers and doping-controlled phase competition in Ca_(1-x)Sr_xCo_(2-y)As_2

机译：CA_（1-X）SR_XCO_（2-Y）AS_2中的铁磁层和掺杂控制相竞争的反铁磁堆叠

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In search of a quantum phase transition between the two-dimensional (2D) ferromagnetism of CaCo2-yAs2 and stripe-type antiferromagnetism in SrCo2As2, we instead find evidence for 1D magnetic frustration between magnetic square Co layers. We present neutron-diffraction data for Ca1-xSrxCo2-yAs2 that reveal a sequence of x-dependent magnetic transitions which involve different stacking of 2D ferromagnetically aligned layers with different magnetic anisotropy. We explain the x-dependent changes to the magnetic order by utilizing classical analytical calculations of a 1D Heisenberg model where single-ion magnetic anisotropy and frustration of antiferromagnetic nearest- and next-nearest-layer exchange interactions are all composition dependent.

机译：寻找SRCO2AS2中Caco2-YAS2和条纹型反铁磁体的二维（2D）铁磁性之间的量子相转变，而是在磁方Co层之间找到1D磁挫折的证据。我们向CA1-XSRXCO2-YAS2提供中子衍射数据，其揭示了一系列X依赖性磁转变序列，其涉及具有不同磁各向异性的2D铁磁性对齐层的不同堆叠。我们通过利用1D Heisenberg模型的经典分析计算来解释磁性秩序的X依赖性变化，其中单离子磁各向异性和反铁磁性最近和下一层交换相互作用的挫折是依赖的。

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《Physical review》 |2019年第2期|024415.1-024415.9|共9页
作者
Li Bing; Sizyuk Y.; Sangeetha N. S.; Wilde J. M.; Das P.; Tian W.; Johnston D. C.; Goldman A. I; Kreyssig A.; Orth P. P.; McQueeney R. J.; Ueland B. G.;
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Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA|Washington State Univ Inst Shock Phys Pullman WA 99164 USA;

Oak Ridge Natl Lab Neutron Scattering Div Oak Ridge TN 37831 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

Iowa State Univ Ames Lab US DOE Ames IA 50011 USA|Iowa State Univ Dept Phys & Astron Ames IA 50011 USA;

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1. Antiferromagnetic stacking of ferromagnetic layers and doping-controlled phase competition in Ca_(1-x)Sr_xCo_(2-y)As_2 [J] . Li Bing, Sizyuk Y., Sangeetha N. S., Physical review . 2019,第2期

机译：Ca_（1-x）Sr_xCo_（2-y）As_2中铁磁层的反铁磁堆叠和掺杂控制的相竞争
2. Antiferromagnetic stacking of ferromagnetic layers and doping-controlled phase competition in Ca(1-x)Sr(x)Co(2-y)AS(2) [J] . Li Bing, Sizyuk Y., Sangeetha N. S., Physical review, B . 2019,第2期

机译：Ca（1-x）Sr（x）CO（2-y）的铁磁层和掺杂控制相竞争的反铁磁堆叠为（2）
3. Anomalous Composition-Induced Crossover in the Magnetic Properties of the Itinerant-Electron Antiferromagnet Ca_(1-x)Sr_xCo_(2-y)As_2 [J] . Sangeetha N. S., Smetana V., Mudring A-V., Physical review letters . 2017,第25期

机译：巡回电子反铁磁体Ca_（1-x）Sr_xCo_（2-y）As_2的磁特性异常诱导交叉
4. Co-Existence of Competing Charge Ordered Antiferromagnetic and Ferromagnetic Metallic Phases in Nd_(0.5)Ca_(0.5)Mn_(1-x)Cr_xO_3: EMR and Magnetization Studies [C] . Ajay Sharma, S. V. Bhat Asia-Pacific EPR/ESR Symposium . 2006

机译：竞争电荷有序的反铁磁性和铁磁性金属相的共存（0.5）CA_（0.5）MN_（1-X）CR_XO_3：EMR和磁化研究
5. Perpendicular exchange bias in ferromagnetic/antiferromagnetic multilayers and magnetization switching. [D] . Xing, Hao. 2009

机译：铁磁/反铁磁多层中的垂直交换偏压和磁化强度转换。
6. Temperature-Controlled Assembly/Reassembly of Two Dicarboxylate-Based Three-Dimensional Co(II) Coordination Polymers with an Antiferromagnetic Metallic Layer and a Ferromagnetic Metallic Chain [O] . Hui-Chen Yu, Chin-Hsuan Lin, Chen-I Yang 2019

机译：两种具有反铁磁金属层和铁磁金属链的基于二羧酸酯的三维Co（II）配位聚合物的温度控制组装/重组
7. Anomalous ferromagnetic spin fluctuations in an antiferromagnetic insulator Pr_{1-x}Ca_{x}MnO_{3} [O] . Kajimoto, R., Kakeshita, T., Oohara, Y., 1998

机译：反铁磁性中的异常铁磁自旋波动绝缘体pr_ {1-x} Ca_ {x} mnO_ {3}

Antiferromagnetic stacking of ferromagnetic layers and doping-controlled phase competition in Ca_(1-x)Sr_xCo_(2-y)As_2

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