30 T scanning tunnelling microscope in a hybrid magnet with essentially non-metallic design

doi:10.1016/j.ultramic.2020.112975

	30 T scanning tunnelling microscope in a hybrid magnet with essentially non-metallic design
	Meng, Wenjie 5,6; Zhao, Kesen 5,6; Wang, Jihao 5,6; Zhang, Jing 5,6; Feng, Qiyuan 5,6; Wang, Ze 5,6; Geng, Tao 5,6; Guo, Tengfei 5,6; Hou, Yubin 5,6; Pi, Li 2,3,5,6
刊名	ULTRAMICROSCOPY
	2020-05-01
卷号	212
关键词	Hybrid magnet scanning tunnelling microscope Hybrid magnet 30.1 T atomic imaging Non-metallic stm head unit Narrow design STM head unit
ISSN号	0304-3991
DOI	10.1016/j.ultramic.2020.112975
通讯作者	Hou, Yubin(ybhou@hmfl.ac.cn) ; Lu, Qingyou(qxl@ustc.edu.cn)
英文摘要	We report on the construction and performance of the first hybrid resistive-superconducting magnet (HM) based scanning tunnelling microscope (STM) above 30 T. This custom-design HM-STM features a novel design of the STM head unit, whose tip-sample approach is implemented using a slender piezoelectric tube (PZT). The scanner shares part of PZT by fixing a sapphire frame onto the front quarter of PZT to construct a compact tip-sample loop, realising an outer diameter of 8.8 mm, which makes it compatible with a narrow sample space. Its main components are made of non-metallic materials of sapphire, which allows it to be immune from eddy currents and to operate under the condition of strong magnetic field fluctuation from a hybrid magnet, as well as cryogenfree cryocooler magnet systems. To analyse the stiffness of the STM head unit, the eigenfrequencies with 11 kHz and 12 kHz in bending modes, 25 kHz in a torsional mode, and 67 kHz in a longitudinal mode were simulated by finite element analysis; also, the drifting rates of the STM in ambient conditions in the X-Y plane and Z direction were measured at 25.5 and 38.2 pm/min, respectively. We present the first atomic images in magnetic fields up to 30.1 T in an HM. The raw data show the stable and distinguished performance while ramping up to maximum fields, indicating the new device's potential capability of operating in the future 45T-hybrid magnet and hundred-field pulsed magnet. Meanwhile, our compact and concentric cylindrical STM insert can operate in the lowtemperature tubular sample space housed by the HM bore to develop low-temperature and extreme highmagnetic field STM.
资助项目	National Key R&D Program of China[2017YFA0402903] ; National Key R&D Program of China[2016YFA0401003] ; National Natural Science Foundation of China[51627901] ; National Natural Science Foundation of China[U1932216] ; National Natural Science Foundation of China[11704384] ; National Natural Science Foundation of China[11804345] ; Hefei Science Center CAS[2018HSCUE014] ; Maintenance and Renovation Project for CAS Major Scientific and Technological Infrastructure[DSS-WXGZ-2019-0011] ; Chinese Academy of Sciences Scientific Research Equipment[YZ201628] ; Anhui Provincial Natural Science Foundation[1808085MB51] ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology[2018CXFX001] ; High Magnetic Field Laboratory of Anhui Province
WOS关键词	LOW-TEMPERATURE
WOS研究方向	Microscopy
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000529312300006
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Hefei Science Center CAS ; Maintenance and Renovation Project for CAS Major Scientific and Technological Infrastructure ; Chinese Academy of Sciences Scientific Research Equipment ; Anhui Provincial Natural Science Foundation ; Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology ; High Magnetic Field Laboratory of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/103295]
专题	中国科学院合肥物质科学研究院
通讯作者	Hou, Yubin; Lu, Qingyou
作者单位	1.Univ Sci & Technol China, Anhui Lab Adv Photon Sci & Technol, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China 3.Nanjing Univ, Collaborat Innovat Ctr Adv Microstructures, Nanjing 210093, Peoples R China 4.Chinese Acad Sci, Hefei Sci Ctr, Hefei 230031, Peoples R China 5.Chinese Acad Sci, High Magnet Field Lab Anhui Prov, Hefei 230031, Anhui, Peoples R China 6.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Meng, Wenjie,Zhao, Kesen,Wang, Jihao,et al. 30 T scanning tunnelling microscope in a hybrid magnet with essentially non-metallic design[J]. ULTRAMICROSCOPY,2020,212.
APA	Meng, Wenjie.,Zhao, Kesen.,Wang, Jihao.,Zhang, Jing.,Feng, Qiyuan.,...&Lu, Qingyou.(2020).30 T scanning tunnelling microscope in a hybrid magnet with essentially non-metallic design.ULTRAMICROSCOPY,212.
MLA	Meng, Wenjie,et al."30 T scanning tunnelling microscope in a hybrid magnet with essentially non-metallic design".ULTRAMICROSCOPY 212(2020).