A-Branch: SCM-XMCD

Key Performance

Overview

Branch A is a SCM-XMCD end-station with the X-ray beam energy ranging from 250 eV to 2000 eV. Equipped with a superconducting magnetic filed of (9T or 2T, along or perpendicular to the incoming x-ray beam ), this end-station is designed to measure untra-weak magnetism of quantum materials.  

I. Load-lock 

  Up to 3 sample holders can be loaded (up to 4 samples/holder )

II. Main chamber

   X-rays with variable polarization (LH(0), LV(90), CR,CL)

   Beam polarization switch with high speed choppers (up to 1 KHz)

   In-situ multi-field environment (electric filed, stress)

   Different signal detection mode:  TEY， FY， Transmission

A-Branch: Cryo-PEEM

Key Performance

Overview

Cryo-PEEM endstation at BL04 beamline is characterized with a LHe manipulator offering a low temperature of 20 K for the sample imaging. A SR200 energy analyzer is equipped to gain an energy resolution less than 0.1 eV at the spectroscopic real space imaging mode. This endstation is dedicated to spatially resolve the chemical, electronic, and magnetic properties of novel magnetic and quantum materials with high resolution and elemental specificity. 

I. Loadlock 

  Up to 4 sample holders can be loaded to the parking chamber.

II. Preparation chamber

  Sample can be prepared or treated with sputtering and annealing up to 1200 K as well as cleaved in vacuum;

  Sputter gun; RHEED; 2 ports available for evaporators;  gas doser as required;    

III. Analysis chamber

　2 ports for evaporator installation; 

    LHe manipulator

    e-gun and mercury light source

    LEEM/PEEM/SPEPEEM/MEM/ARPES imaging modes

B-Branch: Vector Magnet Endstation

Key performance

Overview

Branch B is a vector magnet endstation, equipped with a vectorial magnetic field up to 0.9 T, a loadlock, a X-ray ferromagnetic resonance (XFMR) manipulator and XAS/XMCD/XMLD manipulator. This vector magnet endstation is designed to measure small-size spintronic device with probing spot size of 3μm ×3μm, ultrafast GHz magnetic dynamic process and spin current/orbital current transmission.

Ⅰ. Loadlock

Up to 6 samples can be loaded  (flag-type sample plate)

Ⅱ. XFMR manipulator

Frequency range: 0.5GHz-8GHz (Integer multiple of 0.5GHz)

Field of view: 500μm aperture, LY mode and FY mode, transverse FMR, sensitive to phase of precession

Ⅲ. XAS/XMCD/XMLD manipulator

Sample positions: 2 TEY and 1 LY