Intertwined Spin and Orbital Density Waves in MnP Uncovered by Resonant Soft X-Ray Scattering
Unconventional superconductors are often characterized by numerous competing and even intertwined orders in their phase diagrams. The fluctuations associated with these orders may provide the exotic pairing glue that underlies their high-temperature superconductivity. Helimagnet MnP, the first Mn-based superconductor under pressure, lacks high rotational symmetry. However, our resonant soft x-ray scattering experiment discovers novel helical orbital density wave (ODW) orders in MnP and reveals intertwined ordering phenomena. In particular, an ODW forms with half the period of the spin order and fully develops slightly above the spin ordering temperature, which resembles the behaviors of the nematic phase of the iron-based superconductors. Moreover, we find that their domains develop simultaneously, yet the spin order domains are larger than those of the ODW; and they cooperatively produce another ODW with 1/3 the period of the spin order. These observations provide a comprehensive picture of the intertwined orders in this three-dimensional, low-symmetry system and shed light on the understanding of its superconducting mechanism.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)
- Grant/Contract Number:
- AC02-76SF00515; 11804137; 15ZR1402900; ZR2018BA026; 24-7906; 2016YFA0300200; 2017YFA0303104
- OSTI ID:
- 1527063
- Alternate ID(s):
- OSTI ID: 1546741
- Journal Information:
- Physical Review. X, Journal Name: Physical Review. X Vol. 9 Journal Issue: 2; ISSN 2160-3308
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Random strain induced correlations in materials with intertwined nematic and magnetic orders
Intertwined spin-orbital coupled orders in the iron-based superconductors