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Magnetoresistance in Au/1,4-benzene-dithiol/Au and Au/1,4-benzene-dimethanethiol/Au single-molecule junctions
Rachmat Andika1, Grace Gita Redhyka2, Ryo Yamada1
1Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka, 5608531, Japan. tada.hirokazu.es@osaka-u.ac.jp.
Abstract:
Positive and negative magnetoresistance (MR) in single-molecule Au/BDT/Au and Au/BDMT/Au junctions appeared at 100 mT, revealing π-orbital influence. Differences in MR behaviors arise from singlet-triplet state modulation by exchange interaction, explaining the MR sign reversal. These findings provide new insight into magneto-transport in π-conjugated molecular junctions.
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