Quantum Design中国用户科研成果快报（2023年第8期）

2023-10-23 18:19:36, Dr. Sun QUANTUM量子科学仪器贸易（北京）有限公司

Quantum Design中国用户科研成果快报（2023年第8期）

《Quantum Design中国用户科研成果快报》是由Quantum Design中国定期汇总Quantum Design中国用户（包括综合物性测量PPMS、全新一代磁学测量系统MPMS3用户等）在众多研究领域的近期科研成果，为大家的相关科学研究提供参考。

本期文献目录：

1. A giant Nernst power factor and figure-of-merit in polycrystalline NbSb₂ for Ettingshausen refrigeration. Energy & Environmental Science (2023) 中科院硅酸盐所陈立东.

2. Strong phonon softening and avoided crossing in aliovalence-doped heavy-band thermoelectrics. Nature Physics (2023) 浙江大学朱铁军.

3. Room temperature energy-efficient spin-orbit torque switching in two-dimensional van der Waals Fe₃GeTe₂ induced by topological insulators. Nature Communications (2023) 北京航空航天大学赵巍胜.

4. Ionic liquid gating induced self-intercalation of transition metal chalcogenides. Nature Communications (2023) 清华大学于浦.

5. Vacancy-mediated anomalous phononic and electronic transport in defective half-Heusler ZrNiBi. Nature Communications (2023) 电子科技大学王志明.

6. High-performance thermomagnetic generator controlled by a magnetocaloric switch. Nature Communications (2023) 北京科技大学张虎.

7. Improved figure of merit (z) at low temperatures for superior thermoelectric cooling in Mg₃(Bi,Sb)₂. Nature Communications (2023) 中科院物理所赵怀周.

8. Discovery of a Superconductor Bi₅O₄S₃Cl Containing the Unique BiS₃Layer. Advanced Science (2023) 中科院物理所董晓莉.

9. Large Improvement of Thermoelectric Performance by Magnetism in Co‐Based Full‐Heusler Alloys. Advanced Science (2023) 中科大陈仙辉.

10. Intrinsically Low Thermal Conductivity in a Novel Cu‐S Modified ZrS₂ Compound with Asymmetric Bonding. Small (2023) 中科院硅酸盐所陈立东.

11. Entropy-driven structural transition from Tetragonal to Cubic phase: High Thermoelectric Performance of CuCdInSe₃ compound. Materials Today Physics (2023) 武汉大学唐新峰.

12. Magnetotransport, spin reorientation, and anomalous ferrimagnetic-to-antiferromagnetic phase transition in epitaxial Mn₂Sb alloy thin films. Acta Materialia (2023) 广州大学郑仁奎.

13. Large thermal conductivity and robust mechanical properties of Ni-Mn-Ga/Cu magnetocaloric composites prepared by spark plasma sintering. Science China Materials (2023) 浙江大学秦发祥.

14. Unstable antiferromagnetism and large reversible magnetocaloric effect in TmNi₂Si₂. Science China Materials (2023) 河北大学刘国栋.

15. Anisotropic interfacial superconductivity induced at point contacts on topological semimetal grey arsenic. Science China Physics, Mechanics & Astronomy (2023) 中科院物理所陈根富.

16. Percolation-induced resistivity drop in lutetium dihydride with controllable electrical conductivity over six orders of magnitude. Science China Physics, Mechanics & Astronomy (2023) 中科院物理所程金光.

17. Field-induced anisotropic magnetic phase transitions and tricritical phenomena in GdCr₆Ge₆. Science China Physics, Mechanics & Astronomy (2023) 中科院强磁场实验室张裕恒.

18. Experimental and first-principles investigation on magnetic properties and electronic structure in half-metallic Mn-Co-V-Al Heusler alloy. Journal of Alloys and Compounds (2023) 武汉大学熊锐.

19. The colossal magnetoresistance in wide temperature region of Pr_0.7Sr_0.3MnO₃ film on Pb(Mg_1/3Nb_2/3)_0.7Ti_0.3O₃ substrate. Surfaces and Interfaces (2023) 杭州电子科技大学霍德璇.

20. Antisymmetric Peaks Observed in the Hall Resistance of Fe₅GeTe₂ Ferromagnets: Implications for Spintronic Devices. ACS Applied Nano Materials (2023) 中科大陆亚林.

21. Transient Magnetoelectric Coupling Induced by the Dynamic Intertwinement between Exchange Striction and Compensation in GdFeO₃. The Journal of Physical Chemistry Letters (2023) 华中科技大学夏正才.

22. Magnetism and berry phase manipulation in an emergent structure of perovskite ruthenate by (111) strain engineering. npj Quantum Materials (2023) 中科院物理所郭建东.

23. Ba₉RE₂(SiO₄)₆ (RE = Ho–Yb): A Family of Rare-Earth-Based Honeycomb-Lattice Magnets. Inorganic Chemistry (2023) 华中科技大学夏正才.

24. Suppressing laves phase and overcoming magnetic properties tradeoff in nanostructured (Ce,La,Y)–Fe–B alloys via Ge substitution. Applied Physics Letters (2023) 华南理工大学刘仲武.

25. A peculiar topological Hall effect in noncentrosymmetric ternary carbide GdCoC₂. Applied Physics Letters (2023) 江西理工大学马胜灿.

26. Evolution of spin Hall mechanism and spin–orbit torque in (α, β) phase tantalum film. Applied Physics Letters (2023) 同济大学周仕明.

27. Room temperature two-dimensional ferromagnetic Ni-doped Fe₅GeTe₂ with tunable T_c for enhanced oxygen evolution reaction. Applied Physics Letters (2023) 燕山大学柳忠元.

28. Giant enhancement of magnetostriction in Pt doped FeGa ribbons. Applied Physics Letters (2023) 西安交通大学杨森.

29. Enhanced superconductivity in Ti_1−xMn_x alloys through Mn doping. Physical Review B (2023) 南京大学闻海虎.

30. Absence of superconductivity in electron-doped chromium pnictides ThCrAsN_1−xO_x. Physical Review B (2023) 复旦大学李世燕.

31. Pr-Doping Effect on Spin Switching in Nd_0.8Pr_0.2FeO₃ Single Crystal. The Journal of Physical Chemistry C (2023) 上海大学曹世勋.

32. Surface-sensitive fragile twofold symmetry in the kagome-lattice superconductor CsV₃Sb₅. Physical Review B (2023) 浙江大学曹光旱.

33. Bifunctional Two-Dimensional Nanocomposite with Electromagnetic Wave Absorption and Anti-bacterial Performance. Acta Metallurgica Sinica (English Letters) (2023) 中科院金属所张志东.

34. Synthesis and physical properties of Ce₂Rh_3+δSb₄ single crystals. Physical Review Materials (2023) 浙江大学袁辉球.

35. The structural diversity and properties of Nb_xMo_1-xO₂. Journal of Solid State Chemistry (2023) 中科院物理所龙有文.

36. Effect of diffusion medium on the regeneration of Nd-Fe-B magnet sludge by CaH₂ reduction diffusion method. Journal of Magnetism and Magnetic Materials (2023) 北京工业大学岳明.

37. Manipulation of spin–orbit torque and Dzyaloshinskii-Moriya interaction by varying Mn concentration in Pt_1-xMn_x /Co bilayer. Journal of Magnetism and Magnetic Materials (2023) 中科院半导体所赵建华.

38. Investigating the structure, magnetism, magnetocaloric effects and critical behavior of Eu(Ti,B)O₃ perovskites. Journal of Magnetism and Magnetic Materials (2023) 江西理工大学马胜灿.

39. Coherent magnetic and electronic structure symmetry broken in frustrated bilayer Kagome ferromagnet Fe₃Sn₂. Journal of Physics: Condensed Matter (2023) 中科院物理所王文洪.

40. Growth of millimeter-sized high-quality CuFeSe₂ single crystals by the molten salt method and study of their semiconducting behavior. Journal of Crystal Growth (2023) 中科院物理所陈根富.

41. Ferromagnetic and insulating behavior in both half magnetic levitation and non-levitation LK-99 like samples. Quantum Frontiers (2023) 北京大学王健.

中科院硅酸盐所陈立东等

A giant Nernst power factor and figure-of-merit in polycrystalline NbSb₂ for Ettingshausen refrigeration. Energy & Environmental Science (2023)

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摘要

Ettingshausen制冷是一种很有前景的固态制冷技术，可用于探索物质的量子态和超导材料，但由于缺乏高性能的多晶热磁材料，其发展受到很大限制。本篇工作报告了多晶拓扑半金属NbSb₂在28K和9T磁场下，具有高达1269×10⁻⁴Wm⁻¹K⁻²的Nernst功率因数(PF)_N和28.5×10⁻⁴K⁻¹的Nernst热电优值(z_N)，在多晶热磁材料中同创新高。该材料优良的热磁性能主要归因于其在高磁场下巨大且不饱和的Nernst热功率。由于各向异性的减弱，多晶NbSb₂的载流子迁移率可以与单晶NbSb₂的bc平面相比拟，使得其在低温下仍具有很大的Nernst热功率。结合优异的热磁性能、低成本和省时间的制造工艺，多晶NbSb₂是一种非常有竞争力Ettingshausen制冷候选材料。

PPMS Resistivity & Ratator & TTO

All measurements were carried out on a physical property measurement system (PPMS, Quantum design, USA).

浙江大学朱铁军等

Strong phonon softening and avoided crossing in aliovalence-doped heavy-band thermoelectrics. Nature Physics (2023)

摘要

异价掺杂是优化半导体电性的一种途径，但其对材料声子结构和传播的影响鲜有研究。本文表明，在降低热电半导体的晶格热导率方面，异价掺杂比通常采用的同价合金化策略更有效，并在重带NbFeSb体系中证明了这点。本文发现，仅10%的异价Hf掺杂，比4倍浓度等电子Ta掺杂材料晶格热导率降低65%，这是由于异价掺杂引入了自由载流子并增强了屏蔽，导致光学声子的软化和减速。此外，重掺杂能诱导声学声子和光学声子分支避免交叉，使声学声子减速。这些结果强调了异价掺杂在调节半导体声子结构和抑制声子传播中的重要作用。

PPMS ETO & TTO

The electrical and thermal transport properties below 300 K are characterized by a physical property measurement system (Quantum Design) with the electrical transport option and thermal transport options.

北京航空航天大学赵巍胜等

Room temperature energy-efficient spin-orbit torque switching in two-dimensional van der Waals Fe₃GeTe₂ induced by topological insulators. Nature Communications (2023)

摘要

二维(2D)铁磁材料具有独特的磁性能，在下一代高柔性、易控制和高集成性的自旋电子器件中具有很大的潜力。然而，室温下低功耗磁开关的实现仍具有挑战。本文利用优化的外延生长方法获得了全范德华(vdW)异质结构，并在其中实现了室温自旋轨道矩(SOT)驱动的磁开关。其中拓扑绝缘体Bi₂Te₃不仅通过界面交换耦合提升了Fe₃GeTe₂ (FGT)的居里温度，还作为自旋电流源，使FGT实现了~2.2×10⁶ A/cm²的低电流密度下开关。室温SOT效率为~2.69。另外SOT效率的温度和厚度依赖关系证明该体系中较大SOT具有非平庸拓扑起源。本篇工作实现了全vdW的SOT结构，为将来室温全vdw自旋电子器件的实现提供了坚实的基础。

PPMS Resistivity

The magneto transport studies were carried out in the Quantum Design physical property measurement system.

清华大学于浦等

Ionic liquid gating induced self-intercalation of transition metal chalcogenides. Nature Communications (2023)

摘要

离子液体可实现量子材料结构、性能的多维调控。先前报道有：纳米厚薄片在静电门控下出现超导性，钙钛矿氧化物薄膜中质子和氧离子的插入或抽出实现不同相和性能，以及大尺寸有机阳离子插入层状晶体中可获得定制的超导性。本文报道了一种离子-液体门控方法，通过驱动层状过渡金属二硫族化合物(TMDCs)中的金属溶解进入范德华隙来形成三维过渡金属单硫族化合物(TMMCs)。本文成功证明PdTe₂和NiTe₂通过自插层获得高质量的PdTe和NiTe单晶。此外，单硫属化合物表现出与二硫属化合物不同的性质。例如，PdTe₂的自插层导致了PdTe中超导性的出现。我们的工作为离子液体门控驱动自插层方法合成TMMCs提供了一条途径。

PPMS Resistivity & VSM

Transport measurements were performed in a Physical Property Measurement System (PPMS, Quantum Design) with the lowest temperature of 1.6 K and magnetic field up to 9 T.

电子科技大学王志明等

Vacancy-mediated anomalous phononic and electronic transport in defective half-Heusler ZrNiBi. Nature Communications (2023)

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摘要

空位介导反常输运赋予固体材料丰富的光电、铁电和自旋电子行为，其研究已在多领域开展。虽然声子和电子输运支撑着热电的物理起源，但空位通常只扮演散射中心的刻板角色。本文在一种新兴热电材料——缺陷n型ZrNiBi中揭示了空位对材料输运性质的全方位调控。声子动力学过程受传播速度和弛豫时间的影响：空位诱导的局部成键软化降低声子速度，而声学光学声子耦合、各向异性振动和空位诱导的点缺陷散射缩短了弛豫时间。因此，缺陷ZrNiBi在半Heusler家族中表现出最低的晶格热导系数。此外，空位诱导的平带特征，不仅保证了热电材料充足的电子，而且可能驱动其他新颖的物理现象。因而，ZrNiBi基化合物具有了良好的热电性能。本文不仅展示了一种有前景的热电材料，而且促进了空位介导的反常输运性质的多学科探索。

PPMS Resistivity

Hall carrier concentration (n_H) was obtained using a physical properties measurement system (PPMS, Quantum Design) under a magnetic field of ±7 T and electrical current of 8 mA.

北京科技大学张虎等

High-performance thermomagnetic generator controlled by a magnetocaloric switch. Nature Communications (2023)

摘要

低等级废热约占废热总量的~65% ，而传统废热回收技术对低等级废热的转化效率较低。针对这一问题，本文设计了一种热磁发电装置。与以往通常作为线圈铁芯或大磁轭的作用不同，这里的磁热材料充当控制磁路的开关。这使得该装置不仅具有磁通反转的优点，而且相较于以往装置，该装置设计简单，磁杂散场低并且磁热材料用量少。通过实验和有限元模拟相结合，本文研究了关键结构和系统参数对装置性能的影响。优化后该装置的最大功率密度 P_Dmax 明显高于现有的热磁、热电和热释电装置。如此高的性能证明了我们的磁热开关磁路拓扑设计的有效性。

VersaLab VSM & HC & TTO

The magnetization and specific heat were measured using a cryogen-free, cryocooler-based measurement system (VersaLab, Quantum Design Inc.); the thermal transport option of the platform was utilized to determine the thermal conductivity.

中科院物理所赵怀周等

Improved figure of merit (z) at low temperatures for superior thermoelectric cooling in Mg₃(Bi,Sb)₂. Nature Communications (2023)

摘要

富Bi的n型Mg₃(Bi,Sb)₂ ，其电子输运受到晶界散射限制，低温热电性差。但由于元素反应物的挥发性和高温下对坩埚的严重腐蚀，Mg基Zintl相的晶界移除和块晶生长极具挑战。本文首次报道了Mg₃Bi_2-xSb_x粗晶粒的简易生长方法，可获得晶粒平均尺寸达~800 μm，载流子迁移率高达210cm²·V⁻¹·s⁻¹，使其在300 K时z值高达2.9×10⁻³K⁻¹。450 K下，一个68 K的温差ΔT，对于Mg₃Bi_1.5Sb_0.5和Mg₃Bi_1.25Sb_0.75基热电模块可获得高达5.8%的发电效率，位列近室温热电技术前沿。此外，所开发的晶粒生长方法可以扩展到宽Zintl相和其他Mg基合金和化合物。

PPMS Resistivity

The electrical resistivity was measured by PPMS (Physical Properties Measurement System, Quantum Design).

中科院物理所董晓莉等

Discovery of a Superconductor Bi₅O₄S₃Cl Containing the Unique BiS₃ Layer. Advanced Science (2023)

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摘要

BiS₂基层状超导体因具有与铜基、铁基超导体相似的结构，而引起广泛研究兴趣。本文报道了一种新的四元化合物Bi₅O₄S₃Cl，该化合物为四方结构，空间群P4/mmm (No. 123) ，独特的BiS₃层和Bi₂O₂层沿c轴交替堆叠排布，其中Cl原子位于单胞的中心。在电输运和磁测量中均观察到高于3K的超导转变。霍尔电阻测量显示了其能带的多带特性，电子类载流子占主导地位。第一性原理计算表明，引入硫空位会导致半导体母相Bi₅O₄S₃Cl变成金属态，这暗示了Bi₅O₄S₃Cl的超导起源。本文的发现将激发对新型BiS基超导体的探索。

PPMS Resistivity + MPMS

The superconducting signal was measured on MPMS-XL1 (Quantum Design) with a tiny remnant field <4 mOe to avoid the interference on superconducting signal from remnant field. Temperature-dependent electrical resistivity was b''nmeasured on a physical property measurement system (Quantum Design), whereas field dependent magnetization measurements were carried out on a vibrating sample magnetometer (Quantum Design).

中科大陈仙辉等

Large Improvement of Thermoelectric Performance by Magnetism in Co‐Based Full‐Heusler Alloys. Advanced Science (2023)

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摘要

Full-Heusler合金(fHAs) 具有较高的机械强度，但其金属性质往往表现出较小的电子扩散热功率，限制了其作为优异热电材料的潜在应用。本文证明了Co基fHAs合金 Co₂XAl (X = Ti, V, Nb)由于自旋、电荷耦合而表现出较高的热电性能。热功率源于不同磁机制，包括自旋涨落和磁子阻力等。相比电子扩散，该体系中磁性对热电的贡献更大。Co₂TiAl中自旋涨落对热功率的贡献超过电子扩散，导致功率因数值增加280µWm⁻¹K⁻²。磁子阻力的热功率贡献可达47µVK⁻¹ ，超高电子扩散热功率的2400%。Co₂TiAl的功率因数可达4000µWm⁻¹K⁻² ，与传统半导体热电材料相当。其室温下热电优值zT可达≈0.1，明显大于传统金属材料。这项工作展示了一种通过引入磁性来创造和优化热电材料的非常规方法。

PPMS Resistivity + MPMS

Magnetization measurements were performed using a Quantum Design VSM system. Resistivity and Hall resistivity were measured using the standard four-probe method in a Quantum Design PPMS-9T system. The thermopower and kappa of Co₂TiAl below 300 K was measured with a home-built setup by applying an alternating heat current through the sample (AC method) in a Quantum Design PPMS-9T system.

中科院硅酸盐所陈立东等

Intrinsically Low Thermal Conductivity in a Novel Cu‐S Modified ZrS₂ Compound with Asymmetric Bonding. Small (2023)

摘要

低导热材料在多个研究领域都备受关注，包括隔热材料、热障涂层和热电材料。探索本征低导热新型材料，研究声子输运、化学键合和原子配位至关重要。本文通过在ZrS₂的层间和层内同时引入铜离子，成功地发现了一种新型三元硫化物Cu₂ZrS₃ 。其结构拥有多种配位形式，形成不同原子层，如[CuS₄]， [ZrS₆]和[CuS₃]，其中[ZrS₆]层内三配位Cu原子的不对称键引起明显的声子非简谐性。综上导致 Cu₂ZrS₃的低晶格热导 (κ_L)，300 K时约为0.83Wm⁻¹K⁻¹ ，683 K时约为0.35Wm⁻¹K⁻¹，在硫化物中处于极低的水平。相较于传统的层间插层方法，层内原子取代为在TMDC化合物中的低κ_L材料的设计提供了一种新颖有效策略。