Quantum Design中国用户科研成果快报（2023年第5期）

QuantumDesign

2023.8.18

作者 Quantum Design中国子公司

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Quantum Design中国用户科研成果快报（2023年第5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. Absence of near-ambient superconductivity in LuH_2±xN_y. Nature (2023) 南京大学闻海虎.

2. Multifunctional Magnetic Oxide-MoS₂ Heterostructures on Silicon. Adv Mater (2023) 清华大学南策文.

3. Record High Power Factor and Low Thermal Conductivity in Amorphous/PbTe/Amorphous Multiple Quantum Wells. Advanced Functional Materials (2023) 河北大学王淑芳.

4. Unidirectional electron-phonon coupling in the nematic state of a kagome superconductor. Nature Physics (2023) 中科大陈仙辉.

5. Spontaneous rotational symmetry breaking in KTaO₃ heterointerface superconductors. Nat Commun (2023) 复旦大学李炜.

6. Superior zero thermal expansion dual-phase alloy via boron-migration mediated solid-state reaction. Nat Commun (2023) 北京科技大学邢献然.

7. Field-free spin-orbit torque switching via out-of-plane spin-polarization induced by an antiferromagnetic insulator/heavy metal interface. Nat Commun (2023) 北京科技大学姜勇.

8. Self-Propelled Janus Nanocatalytic Robots Guided by Magnetic Resonance Imaging for Enhanced Tumor Penetration and Therapy. J Am Chem Soc (2023) 北京大学侯仰龙.

9. External Fields Assisted Highly Efficient Oxygen Evolution Reaction of Confined 1T-VSe₂ Ferromagnetic Nanoparticles. Small (2023) 北京科技大学王守国.

10. Magnetization-direction-tunable spin coupling in kagome magnet LiMn₆Sn₆. Materials Today Physics (2023) 中科大王中平.

11. Anomalous anisotropic magnetoresistance in the topological semimetal HoPtBi. NPG Asia Materials (2023) 中科院物理所王文洪.

12. Critical Role Played by Interface Engineering in Weakening Thickness Dependence of Superconducting and Structural Properties of FeSe_0.5Te_0.5-Coated Conductors. ACS Appl Mater Interfaces (2023) 中科院电工所董持衡.

13. Anomalous Hall effect in kagome ferromagnet YbMn₆Sn₆ single crystal. Journal of Alloys and Compounds (2023) 江西理工大学马胜灿.

14. Interatomic orbital hybridization determined structure dependent magnetic behavior in Co-Mn-V-Ga Heusler compounds. Journal of Alloys and Compounds (2023) 中科院物理所王文洪.

15. Anomalous chemical pressure evolution in ThFePnN (Pn for pnictogens). Journal of Alloys and Compounds (2023) 浙江大学曹光旱.

16. Regulable Properties in Multicomponent Rare Earth Magnetic Particle Sm_xPr_1–xCo₅ by a Specially Designed Co Nanomatrix Precursor: Implications for Magnets with Different Application Temperatures. ACS Applied Nano Materials (2023) 北京工业大学岳明.

17. Adaptability to Crystal Fields in a Series of COT/Monodentate Ligand-Based Dy and Er Single Ion Magnets. Inorg Chem (2023) 北京大学高松.

18. High-Pressure-Stabilized Post-Spinel Phase of CdFe₂O₄ with Distinct Magnetism from Its Ambient-Pressure Spinel Phase. Inorg Chem (2023) 中科院物理所龙有文.

19. Synthesis and properties of La-Fe-Si/La-Co magnetocaloric composites. Materials Research Bulletin (2023) 华南理工大学刘仲武.

20. The modulation of magnetism and charge carrier in magnetic topological insulator MnBi₄Te₇ by Pb and Sb co-doping. Applied Physics Letters (2023) 南京大学宋凤麒.

21. Anisotropic magnetoresistance and the field-induced anomalous valley inversion in half-Heusler TbPtBi. Applied Physics Letters (2023) 中科院物理所于国强.

22. Charge fluctuations above TCDW revealed by glasslike thermal transport in kagome metals AV₃Sb₅(A=K,Rb,Cs). Physical Review B (2023) 上海科技大学郭艳峰.

23. Pressure-driven evolution of upper critical field and Fermi surface reconstruction in the strong-coupling superconductor Ti₄Ir₂O. Physical Review B (2023) 中科院物理所陈根富.

24. Electrostatic modulation of the lateral carrier density profile in field effect devices with nonlinear dielectrics. Physical Review B (2023) 浙江大学谢燕武.

25. Anisotropic transport and multiple topology in quasi-one-dimensional ternary telluride NbNiTe₅. Physical Review B (2023) 浙江大学曹光旱.

26. Electrical and thermal transport properties of the kagome metals ATi₃Bi₅(A=Rb,Cs). Physical Review B (2023) 上海科技大学郭艳峰.

27. Charge invertible nanowires [Ni₅Bi_5.6]^x (x = 1+, 0, 1−): Infinite columns [Ni₅Bi_5.6]⁻ in a novel quasi-one-dimensional compound KNi₅Bi_5.6. Journal of Solid State Chemistry (2023) 中科院物理所陈根富.

28. Anisotropic magnetism and electronic properties of the kagome metal SmV₆Sn₆. Physical Review Materials (2023) 中山大学王猛.

29. Microwave-assisted chemical synthesis of SmCo₅ magnetic particles with high coercivity. Journal of Magnetism and Magnetic Materials (2023) 北京工业大学岳明.

30. Tunable spin texture transformation with field-free biskyrmion over a broad temperature range in rare-earth ferrimagnets. Journal of Applied Physics (2023) 北京科技大学王守国.

31. Opposite thermal process effects on the magnetic and electrical behaviors in 0.8BiFeO₃–0.2BaTiO₃. Chemical Physics Letters (2023) 中科院物理所靳常青.

32. Hydrothermally Obtaining Superconductor Single Crystal of FeSe_0.2Te_0.8 without Interstitial Fe. Chinese Physics Letters (2023) 中科院物理所赵忠贤.

33. Two-Dimensional Conductive Metal–Organic Framework Reinforced Spinterface in Organic Spin Valves. CCS Chemistry (2023) 天津大学米文博.

南京大学闻海虎等

Absence of near-ambient superconductivity in LuH_2±xN_y. Nature (2023)

摘要

近期，氮掺杂氢化镥中近环境条件超导性的发现激发了全世界的兴趣。本文通过高压高温合成技术，成功地获得了氮掺杂氢化镥(LuH_2±xN_y)，颜色为深蓝色，X射线衍射证明空间群为Fm-3m，结构与文献报道相同，只是晶格常数略有不同。拉曼光谱也与文献报道相似。能量色散X射线光谱(EDS)证实了样品中氮的存在。在环境压力下，350~2K，材料保持金属行为。施加2.1~41 GPa的压力，晶体颜色从深蓝色到紫色再到粉红色逐渐变化。测量0.4~40.1 GPa压力下的电阻，可以观察到逐渐改善的金属行为，但直至2 K都没有超导性。高压下磁化强度的温度依赖性在100 ~ 320 K之间表现出非常弱的正信号，在100 K时磁化强度随磁场的增大而增大，这些都与100 K超导性不吻合。因此，本文得出结论，在低于40.1 GPa的压力下，氮掺杂的氢化镥不存在近环境条件的超导性。

PPMS Resistivity & HP+ MPMS HP

Temperature dependent resistivity/resistance measurements under ambient and high pressure were carried out with a physical property measurement system (PPMS-9T, Quantum Design). The high pressure was generated by a DAC made of BeCu alloy with two opposing anvils. The DC magnetization measurements were performed with a SQUID-VSM-7T (Quantum Design). The DC magnetic moment measurements at high pressures were accomplished by using the DAC (attachment to a PPMS) designed by the Honest Machinery Designer’s office (HMD).

清华大学南策文等

Multifunctional Magnetic Oxide-MoS₂ Heterostructures on Silicon. Adv Mater (2023)

摘要

关联氧化物和相关异质结构对未来多功能器件开发非常重要，但将它们与硅基等其他材料的集成，极具挑战。本文成功将锰基钙钛矿La_0.7Sr_0.3MnO₃ (LSMO)和Si衬底MoS₂构成范德华异质结构。通过采用自支撑LSMO膜，通过范德华力介导转移技术制备 LSMO-MoS₂异质结构，克服了生长过程不相容的问题。LSMO-MoS₂异质结构表现出栅极可调整流行为，基于此可实现通断比超过10⁴的金属半导体场效应晶体管(MESFET)。LSMO-MoS₂异质结构可作为光电二极管，显示相当大的开路电压和光电流。此外，LSMO的巨大磁阻使 LSMO-MoS₂异质结构在室温下具有电调控磁响应。本文不仅证明了 LSMO-MoS₂异质结构器件在硅基平台上的适用性，而且展示了一种通过性质迥异的材料创建多功能异质结构的范例。

MPMS

The magnetic moment of the as-grown and transferred LSMO films were tested with a Magnetic Property Measuring System (MPMS) (Quantum Design Inc.).

河北大学王淑芳等

Record High Power Factor and Low Thermal Conductivity in Amorphous/PbTe/Amorphous Multiple Quantum Wells. Advanced Functional Materials (2023)

摘要

量子阱(QW)超晶格是提升热电性能的重要策略之一，可以为下一代热电器件研制提供丰富的平台。传统量子阱超晶格有两个方面需要提升：(1)减少基于半导体的多量子阱(MQW)中的电子穿隧，(2)降低基于氧化物的多量子阱MQW的热导。本文发现，基于非晶材料的PbTe/非晶-STO MQWs在室温下具有超高功率因数40.9 µW cm⁻¹K⁻²和低热导0.49 Wm⁻¹K⁻¹。PbTe/非晶-STO MQWs的高热电性能是由于其强烈的量子尺寸效应和非晶超晶格固有的低导热性导致的。本文的结果为调制超越传统MQW材料的热电性能开辟了一条新的途径。

PPMS Resistivity + ZEM-3

The Hall coefficients, carrier concentration, and mobilities were measured by the standard van der Pauw technique using a physical property measurement system (PPMS, Quantum Design). High temperature 𝜎 and S were evaluated using the ZEM-3 Seebeck coefficient/electrical resistance measuring system.

中科大陈仙辉等

Unidirectional electron-phonon coupling in the nematic state of a kagome superconductor. Nature Physics (2023)

摘要

电子向列性常与非常规超导性并举。因此，了解向列态性质及其对电子能带结构和超导性的影响已成为凝聚态物理学中一个关键问题。本文用扫描隧道显微镜观察了笼目超导体CsV_3−xTi_xSb₅ 在向列态下相互作用的准粒子结构。温度低于向列相转变后，钒笼目能带准粒子相干散射呈现明显二度对称性。我们发现电声耦合导致电子自能修正，使得平面钒能带的费米速度沿对称性破缺方向重整化，使得低能色散和电子动力学沿三个晶格方向不再等效。钛取代导致向列态转变温度与超导转变温度反向变化，说明超导性和电子向列性之间可能存在竞争。本文为在电子相关和晶格自由度共同作用的系统中模拟电子向列态提供了一个平台。

PPMS Resistivity

Electrical transport measurements were carried out by using a Quantum Design physical property measurement system (PPMS-14T).

复旦大学李炜等

Spontaneous rotational symmetry breaking in KTaO₃ heterointerface superconductors. Nat Commun (2023)

摘要

对称性破缺严重影响超导性，并对材料其他性质具有深远影响。理解这些对称破缺态对阐明非平庸超导体中的各种奇异量子行为至关重要。本文报道了在超导转变温度为1.86 K的非晶(a)- YAlO3/KTaO3(111)异质界面发现了超导性自发旋转对称破缺。磁阻和面内超导临界场在超导态具有二度对称性，而各向异性在正常状态下消失，表明各向异性是超导相的固有性质。我们将这种行为归因于混合宇称超导态，就是因为a-YAlO3/KTaO3异质界面上反转对称性破缺导致的本征强自旋轨道耦合引发了s波和p波配对分量的混合。我们的工作表明了KTaO3异质界面超导体中潜在配对相互作用的非常规性质，并为理解人工异质界面上的非平庸超导特性带来了新视角。

PPMS Resistivity & ³He Refrigerator

The electrical transport measurements are performed using physical properties measurement system with temperature ranging from 0.5 to 300 K (PPMS, QuantumDesign), partially.

北京科技大学邢献然等

Superior zero thermal expansion dual-phase alloy via boron-migration mediated solid-state reaction. Nat Commun (2023)

摘要

现代技术的快速发展迫切需要多性能的零热膨胀材料(ZTE) ，从而适应极端使用条件。迄今为止，大多数有记录的ZTE材料都存在着不同方面的不足，限制了它们的实际应用。本文报告了一种性能优越的各向同性ZTE合金，具有宽工作温区，高强度刚度和循环热稳定性等综合性能。硼迁移介导的固相反应(BMSR)在Er-Fe-B双相合金中构建了明显的“葡萄干布丁”结构，其中前驱体ErFe₁₀相与迁移的硼发生反应，转变为靶相Er₂Fe₁₄B (布丁)和α-Fe相(李子)。这种组织的形成有助于消除明显的晶体织构，形成各向同性ZTE，同时提高合金的强度和韧性。本篇工作为高综合性能ZTE合金设计提供了一个重要范例。

PPMS VSM

The magnetization measurements were measured by a physical property measurement system (PPMS) of Quantum Design with the vibrating sample magnetometer (VSM), which is cooled by liquid helium.

北京科技大学姜勇等

Field-free spin-orbit torque switching via out-of-plane spin-polarization induced by an antiferromagnetic insulator/heavy metal interface. Nat Commun (2023)

摘要

对于零场自旋电子器件来说，控制自旋极化方向是一项具有挑战性但又至关重要的工作。虽然这类操作已经在部分反铁磁金属基系统中得到证明，但金属层分流效应不可避免的会降低整体设备效率。本文提出了一种基于反铁磁绝缘体的异质结构NiO/Ta/Pt/Co/Pt，可实现自旋极化调控的同时，确保反铁磁层没有任何分流效应。零场磁化开关的实现，与NiO/Pt界面调制的自旋极化的面外分量有关。衬底可以有效调控零场磁化开关比，因为NiO的易轴可以通过衬底的拉伸或压缩应变来操纵。本文的研究表明，基于反铁磁绝缘体的异质结构是提高自旋轨道矩效率和实现零场磁化开关的很有潜力平台，为高能效自旋电子器件开辟了一条道路。

VersaLab VSM + PPMS Resistivit

The magnetic properties of the multilayers were measured by vibrating samplemagnetometer (VSM, QuantumDesign Versalab). R_H-H and R_H-I loops were measured in physical property measurement system (PPMS, Quantum Design DynaCool).

北京大学侯仰龙等

Self-Propelled Janus Nanocatalytic Robots Guided by Magnetic Resonance Imaging for Enhanced Tumor Penetration and Therapy. J Am Chem Soc (2023)

摘要

生物医学微纳米机器人作为具有自推进和可控导航等特点的主动传递系统，在疾病治疗和诊断、检测、生物解毒等方面取得了巨大进展。然而，现有的微纳米机器人仍存在药物负载复杂、药物生理稳定性和药物释放不可控等问题。为了解决这些问题，本研究将微纳米机器人和纳米催化医学这两个独立的研究领域整合在一起，实现在人体内自我推进诱导的肿瘤深度穿透和催化反应启动肿瘤治疗。我们提出了自推进的Janus纳米催化机器人(JNCR)，由磁共振成像(MRI)引导，用于体内强化肿瘤治疗。这些JNCRs在H₂O₂溶液中活跃运动，并且它们在肿瘤组织中的迁移可以通过无创MRI实时跟踪。近红外光照射和铁介导的Fenton反应均可诱导温度升高和活性氧生成，在肿瘤光热和化学动力学治疗中具有很大的潜力。与被动纳米颗粒相比，这些自推进JNCRs在肿瘤内注射后能够更深地穿透肿瘤并增强肿瘤治疗。此外这些具有生物相容性组件和副产品的机器人在小鼠模型中表现出生物安全性。期望我们的工作能够促进微纳米机器人与纳米催化医学的结合，从而改善肿瘤治疗和潜在的临床转化。

PPMS VSM

The magnetic curves were constructed by a physical property measurement system (PPMS-9, Quantum Design, USA).

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