TY - JOUR
AU - Haoxiang Li
AU - Xiaoqing Zhou
AU - Stephen Parham
AU - Thomas Nummy
AU - Justin Griffith
AU - Kyle Gordon
AU - Eric Chronister
AU - Daniel Dessau
AB - Using high-resolution photoemission spectroscopy on <em>in situ</em> potassium surface-doped <em>para</em>-terphenyl crystals, we uncover a low-energy spectral gap of 12 meV. This spectral gap displays a strong temperature-dependent gap-filling behavior and persists up to 120 K, which is consistent with the onset temperature of a weak steplike diamagnetic transition found in this material. Among a few potential candidates for the origin of the observed gaps, we argue that electron pairing is a plausible origin-a possibility consistent with fluctuating Cooper pairs forming near 120 K.
BT - Physical Review B
DA - 2019-08
DO - 10.1103/PhysRevB.100.064511
N2 - Using high-resolution photoemission spectroscopy on <em>in situ</em> potassium surface-doped <em>para</em>-terphenyl crystals, we uncover a low-energy spectral gap of 12 meV. This spectral gap displays a strong temperature-dependent gap-filling behavior and persists up to 120 K, which is consistent with the onset temperature of a weak steplike diamagnetic transition found in this material. Among a few potential candidates for the origin of the observed gaps, we argue that electron pairing is a plausible origin-a possibility consistent with fluctuating Cooper pairs forming near 120 K.
PY - 2019
EP - 064511
T2 - Physical Review B
TI - Spectroscopic evidence of low-energy gaps persisting up to 120 K in surface-doped p-terphenyl crystals
UR - https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.064511
VL - 100
SN - 2469-9950
ER -