Pólya urn with memory kernel and asymptotic behaviors of autocorrelation function

Shinya Uji, Taichi Terashima, Shiori Sugiura, Satoshi Iguchi, Takahiko Sasaki, Kenichiro Hashimoto, Masaaki Shimozawa, Naoki Yoneyama, Reizo Kato

Research output: Contribution to journalArticlepeer-review

Abstract

Magnetic susceptibility and torque measurements have been performed for neutral BEDT-TTF crystals to investigate the diamagnetic properties. The diamagnetic susceptibility is found to be anisotropic at room temperature, -1.9 × 10-4 emu=mol for the magnetic field H || [011] and −2.5 × 10−4emu=mol for H || [100], comparable to the Langevin diamagnetism estimated from the Pascal constants, −2.04 × 10−4emu=mol. The diamagnetism for both directions is gradually enhanced with decreasing temperature. Sinusoidal torque curves are clearly observed for two field rotations in the (011) and (100) planes, reflecting the anisotropic diamagnetism of the neutral BEDT-TTF molecule. The results show that careful attention must be paid to quantitative discussion of the torque signals in various organic materials.

Original languageEnglish
Article number114010
Journaljournal of the physical society of japan
Volume90
Issue number11
DOIs
Publication statusPublished - 2021 Nov 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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