Title: Pinch point singularities of tensor spin liquids

Journal Article · · Physical Review. B
 [1];  [2];  [3];  [3];  [3]
  1. Univ. of Colorado, Boulder, CO (United States); Princeton Univ., NJ (United States); DOE/OSTI
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. Univ. of Colorado, Boulder, CO (United States)

Recently, a new class of three-dimensional spin liquid models have been theoretically discovered, which feature generalized Coulomb phases of emergent symmetric tensor U(1) gauge theories. These “higher rank” tensor models are particularly intriguing due to the presence of quasiparticles with restricted mobility, such as fractons. We investigate universal experimental signatures of tensor Coulomb phases. Most notably, we show that tensor Coulomb spin liquids (both quantum and classical) feature characteristic pinch point singularities in their spin-spin correlation functions, accessible via neutron scattering, which can be readily distinguished from pinch points in conventional U(1) spin liquids. These pinch points can thus serve as a crisp experimental diagnostic for such phases. Here, we also tabulate the low-temperature heat capacity of various tensor Coulomb phases, which serves as a useful additional diagnostic in certain cases.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0010526
OSTI ID:
1611434
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 16 Vol. 98; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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