4 papers
Magnetic field-induced non-trivial Lifshitz transition in TaCo2Te2
Suman Kalyan Pradhan, Xiaoming Ma, Jicheng Wang +14
Magnetic-field-driven Lifshitz transitions are typically considered zero-temperature phenomena involving Fermi-surface reconstruction without symmetry breaking. Here, we report an…
Anharmonic thermodynamics redefines metastability and parent phases in ferroelectric HfO2
Yiheng Shen, Chang Liu, Wei Xie +1
Hafnia (HfO2) is a silicon-compatible dielectric material, yet stabilizing its desired but metastable ferroelectric phase remains challenging. Phase stability predictions by densit…
Ultrafast cooperative electronic, structural, and magnetic switching in an altermagnet
Tiangao Lu, Ao Wu, Junxiang Li +5
Femtosecond laser control of antiferromagnetic order is a cornerstone for future memory and logic devices operating at terahertz clock rates. The advent of altermagnets -- antiferr…
Optical signatures of noncentrosymmetric structural distortion in altermagnetic MnTe
Ao Wu, Di Cheng, Xinyun Wang +3
The hexagonal MnTe is a prime material candidate for altermagnets, an emerging class of magnetic compounds characterized by the nontrivial interplay of antiparallel spin arrangemen…