MultiFields — Measurment / Biaxial rotation – electrical transport
Realization of complete coverage of stereospace spheres (naming the rotation angle in 3D polar coordinates).
(1). Fixed-axis rotation – phi, with the rotational axis parallel to the sample tray surface; (2). Rotation with body axis – theta, axis perpendicular to the sample holder surface;
Biaxial rotation-electrical transport
MultiFields – Rotating Electric Transmission Measurement – Integrated Solution
Mechanical axis phi , -10° to 370° rotation range; return difference less than 1°;
Piezoelectric axis theta , angular closed loop sensing 200°, rotation 360°;
8- / 12-channel measuring line (25 mm / 45 mm OD version);
Operating temperature 1.5 to 400 K; magnetic field up to 16 Tesla;
With Oxford TeslatronPT, PPMS, Cryogenics and Nanjing Pengli-CPMS systems, etc;
·System Component
Multifield Technology – Biaxial Rotation · Electrical Transport Measurement System Components
·System Components ~ Automated Measurement Software
Seamless support for third-party commercial · low-temperature superconducting magnet platforms; environmentally controlled, automated data acquisition, supports sequence automated measurements
·Specification
Spool I.phi
Spool II.theta
Axis of rotation
· Fixed rotary axis
· Mechanical rotation planes
· Spindle parallel to the surface of the sample holder
· Axis of rotation of accompanying body
· piezo-electric rotation
· Rotating axis perpendicular to the surface of the sample holder
Temperature range
1.6 ～ 370 K
Magnetic field range
Max. 18 T
Angle of rotation
-10 ～ 370 degrees
360 degrees
Outer diameter of sample rod
⌀25 mm, ⌀46 mm
Temperature control method
⌀25 mm, only monitor Temp.
⌀46 mm, control Temp.
Electrically usable test lines
⌀25: 8 pins
⌀46: 12 pins
Rotary control circuits
None
@4K environment
⌀25: 7 pins (closed-loop)
⌀46: 7 pins (closed-loop)
controllers
MF-Motor-Controller
MF-Piezo-Controller
Sample holder
PCB
Sample Tray Load
50 g
Angle sensing
Open Loop
⌀25: Closed Loop
⌀46: Closed Loop
·Data
The following data is based on a commercial cryogenic superconductivity platform using Multi-Tech Sample Rods + Multi-Tech Magnetic Resonance Meter.
Temperature dependence of spin Hall magnetoresistance (SMR)
测试条件：
Multifields® Swivel Rods
Multifields® Breakout box
QD-PPMS-9T
Keithley 2400 DC Source Meter
Keithley 2182 Nanovolt Meter
Test samples：
W(5)/CoFeB(0.9)/MgO(2)/Ta(2 nm)
Hall devices
Magnetic field and angle dependent second harmonic measurements
Test conditions：
Multifields® Rotating Rods
Multifields® Breakout box
QD-PPMS-9T
Keithley 6221 AC Current Source
Stanford SR830 Lock-in Amplifier ×2
Test Sample：
Co(3)/Pt(5 nm)
Hall devices
Angular dependence of magnetoresistance and magnetic field in topological insulators
