Fig. 4: The joint PDFs n(dx, 0, dz) (upper) and n(dx, dy, 0) (lower) for KDP and DKDP.
From: Deuteration removes quantum dipolar defects from KDP crystals

Panels a–d are associated respectively with T = 200 K, 250 K, 90 K, and 130 K.
From: Deuteration removes quantum dipolar defects from KDP crystals
Panels a–d are associated respectively with T = 200 K, 250 K, 90 K, and 130 K.