Pair-density waves, charge-density waves, and vortices in high-Tc cuprates
Journal Article
·
· Physical Review. B
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); MIT
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
A recent scanning tunneling microscopy (STM) experiment reports the observation of a charge-density wave (CDW) with a period of approximately 8a in the halo region surrounding the vortex core, in striking contrast to the approximately 4a period CDWs that are commonly observed in the cuprates. Inspired by this work, we study a model where a bidirectional pair-density wave (PDW) with period 8 is at play. This further divides into two classes: (1) where the PDW is a competing state of the d-wave superconductor and can exist only near the vortex core where the d-wave order is suppressed and (2) where the PDW is the primary order, the so-called “mother state” that persists with strong phase fluctuations to high temperature and high magnetic field and lies behind the pseudogap phenomenology. We study the charge-density wave structures near the vortex core in these models. We emphasize the importance of the phase winding of the d-wave order parameter. The PDW can be pinned by the vortex core due to this winding and become static. Furthermore, the period-8 CDW inherits the properties of this winding, which gives rise to a special feature of the Fourier transform peak, namely, it is split in certain directions. There is also a line of zeros in the inverse Fourier transform of filtered data. We propose that these are key experimental signatures that can distinguish between the PDW-driven scenario from the more mundane option that the period-8 CDW is primary. We discuss the pro's and con's of the options considered above. Lastly, we attempt to place the STM experiment in the broader context of pseudogap physics of underdoped cuprates and relate this observation to the unusual properties of x-ray scattering data on CDW carried out to very high magnetic field.
- Research Organization:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- NSF; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- FG02-03ER46076; SC0008739
- OSTI ID:
- 1777869
- Alternate ID(s):
- OSTI ID: 1540856
OSTI ID: 1437086
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 17 Vol. 97; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Atomic-Scale Visualization of the Cuprate Pair Density Wave State
Magnetic field–induced pair density wave state in the cuprate vortex halo
Journal Article
·
Mon Sep 27 20:00:00 EDT 2021
· Journal of the Physical Society of Japan
·
OSTI ID:1828887
Magnetic field–induced pair density wave state in the cuprate vortex halo
Journal Article
·
Wed Jun 05 20:00:00 EDT 2019
· Science
·
OSTI ID:1547160