Low temperature

16T/18T superconducting magnets (Oxford instruments)

This high field magnet can go up to 16 T (18 T using a lambda refrigerator) and is well suited for measurements using the dilution refrigerator, the He3 Refrigerator, and the VTI.

Physical property measurement system PPMS (Quantum Design)

We have two PPMS units that allow fully-automated measurements of various physical properties, including electrical and thermal transport, specific heat, and thermal expansion. These two machines cover a wide temperature range of 0.35K - 300K and an applied magnetic field up to 9T.

High-resolution capacitive dilatometerr (Innovative Measurement Technology Kuechler)

This compact capacitive dilatometer allows high-resolution thermal expansion and magnetostriction measurements in high magnetic fields. It is sensitive to tiny sample length change on the order of 0.002nm and is adaptable to both PPSM systems and dilution refrigerators.

3He-4He dilution refrigerator MX100 (Oxford Instruments)

This dilution refrigerator can achieve an ultraslow temperature of 20mK. We can carry out various configured experiments with this it, such as specific heat, electrical resistivity, Hall effect, SQUID AC/DC magnetization, dielectric constant, and thermal expansion.

SQUID magnetometer MPMS-XL (Quantum Design)

This MPMS enables highly sensitive, fully-automated magnetization measurements. It covers a temperature range of 1.9K - 400K (800K with the oven option) and a maximum magnetic field of 7T. This is a closed-cycle system that requires no external supply of liquid helium.

Sample rotation probe for PPMS

This PPMS probe comprises a sample rotation mechanism for measuring field angle dependence of electrical transport properties.

3He-4He dilution refrigerator Kelvinox 25 (Oxford Instruments)

This dilution refrigerator reaches a base temperature of about 35 mK and ensures the thermal environment's high stability with its large cooling power (25 uW at 100 mK). It fits both the 16 T or 9 T superconducting magnets.

Cryogen free magnet with VTI (Oxford Instruments)

This magnet is cryogen-free and with a pulse-tube refrigerator. The maximum field value is 8T. The variable temperature insert (VTI) and the 3He refrigerator (Heliox-VT) can be installed into this magnet for measurements over a wide temperature range from 0. 28K to room temperature.

Variable Temperature Insert (VTI) (Cryo Industries)

This cryogenic probe can measure various physical properties such as resistivity, ac-susceptibility, and dielectric constant from room temperature down to 1.5 K.

Thin film
 

Magneto-optical Kerr effect (MOKE) Imagining measurement system (Quantum Design)

This system can measure the longitudinal, transverse, and polar magnetooptical Kerr effects in an applied magnetic field of 1.5T. It offers high-resolution magnetic-domain imagining via CCD or scanning laser microscope, and is well suited to study magnetic properties of thin films and magnetic nanostructures.

Vacuum and high-temperature probe station for electrical and thermal transport measurements (Nagase Techno.)

This prober can measure electrical and heat transport properties from 20 K to 473 K (200 ° C) without an external supply of cryogenic liquid.

Low-temperature, high-vacuum multi-purpose measurement system with a 2T magnet (Thermal Block Company)

This device can measure samples of various shapes under a high vacuum environment at 15-325 K under a magnetic field up to 2T. The sample stage rotation mechanism enables us to explore the field angle dependence of various physical properties.

Ultra-high-vacuum sputtering system (Eiko)

This sputtering system contains magnetron sputtering guns that can operate in both DC and RF mode. We simultaneously sputter seven targets, five in a revolver type sputtering gun, and two in the co-sputtering type sputtering gun.

Vacuum and cryogenic probe station for high-frequency measurements (Nagase Techno.)

This prober allows for low-noise high-frequency measurements over a wide temperature range.

Synthesis
 

Mono-arc furnace

This apparatus is used for the synthesis of alloys and polycrystals of intermetallic compounds. It contains a single electric arc at the top, which melts the starting materials in the argon atmosphere.

Floating zone furnance

This furnace is suited for growing high-purity large single crystals. Light focused by mirrors creates a "hot spot" at about 2,200℃ that melts the polycrystalline starting materials, forming a molten at the common focus. By translating the polycrystals or the mirrors, the molten will pass through the polycrystalline rod, leaving behind a single crystal.

Centrifugal separator

This apparatus is for removing flux from single crystals grown by the flux method at high temperatures.

Tetra-arc furnace

This apparatus is well suited for growing large single crystals of intermetallic compounds. It contains four electric arcs to melt the starting materials under a high vacuum. The material undergoes continuous rotation to ensure homogeneous melt throughout the growth process.

Changeable atmosphere horizontal furnace 

This tube-type horizontal furnace allows annealing in either vacuum or any gas environment (e.g., O2 gas). Temperature is tunable up to ~ 1,550℃.

Box Furnace

This is our most frequently used furnace that allows heating sequences up to 1,150℃.

Three-zone furnace

This is a three-zone tube furnace that has three temperature zones with precise temperature controllability. Thi furnace is used for single crystal growth by the chemical transportation method.

High-temperature vertical cylindrical furnace with a controlled atmosphere

This vertical furnace is suitable for high-temperature growth (max. 1,600 ℃) with the MoSi heating element. It contains an exhausting system that enables single crystal growth of intermetallic compounds by the flux method in oxygen-free conditions.

Welding system

We carry out various sealing and welding tasks here, such as vacuum sealing of quartz tube for crystal growth.

Analysis
 

Horizontal sample mount X-Ray diffractometer (Rigaku)

This versatile X-ray diffractometer provides structural information of both powders and thin films. It has a powerful light source of 9kW and a hundred times higher detection sensitivity than conventional ones. It is a user-friendly system, with integrated guidance software enabling fully automated measurements.

X-ray diffractometer (Rigaku)

This X-ray diffractometer is used for determining the composition and structural information of powder samples. It has a Cu target and a maximum output of 2kW. The allowed current and voltage ranges are 2-60 mA, and 20-60 kV, respectively, and the lowest measurement temperature is 10 K.

Single-crystal X-ray diffractometer with an imaging plate(IP) detector (Rigaku)

This is a high-resolution triaxial single crystal X-ray diffractometer with a curved, large-area imaging plate detector. This system is particularly suited for small single crystals, allowing fast identification of their structure, lattice parameters, and orientation. The X-ray source is a Cu target.

Backscattering Laue X-ray imaging system (Photonic Science)

This Laue machine is used for determining the single-crystal orientations. It contains a CCD camera (Photonic Science) that allows fast image acquisition with high resolution, and a goniometer with an accuracy of 1 degree. The X-ray source is a RINT-2100, W target.

Contact

〒113-0033

東京都文京区本郷7-3-1

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