arXiv subjects

Masaki Tanaka

Publications and source records attributed to Masaki Tanaka.

4 recordsLinked to original sources

arXiv2026

Spontaneously Formed Orientation Polarization Thin Films for Engineering Organic-Organic Interfaces

Spontaneous orientation polarization (SOP) of polar molecules is formed in vacuum-deposited films by tilting their permanent dipole moment against the substrate surface direction. In this study, we developed SOP molecules with high structural asymmetry by introducing multiple fluoroalkyl groups into polar molecules because SOP is driven by asymmetric intermolecular interactions on the film surface during the vacuum deposition. The developed polar molecules exhibited high dipole orientation degrees in vacuum-deposited films and achieved a high surface potential growth rate relative to the film thickness, over -350 mV nm-1, which is a record high for the reported compounds. Furthermore, the dipolar layers introduced at organic thin-film interfaces in hole-only devices and organic photovoltaics to study the impact of dipole interlayers on device performance. The characteristics of the device were observed to be significantly influenced by the SOP polarity, suggesting that the SOP at the organic thin-film interface plays a crucial role in charge transfer and energy level alignment. The findings of this study provide methodologies for the formation of highly anisotropic glassy films, leading to improved performance of organic devices.

cond-mat.mtrl-sci↗

arXiv2025

A Tripartite Framework for Understanding the Embodied Mind: A Comprehensive Review of Bodily Map Study

People often speak of being "moved beyond words" when witnessing awe-inspiring natural beauty, experiencing profound moral elevation, or encountering powerful works of art and music. Such moments evoke intensely embodied sensations - a swelling in the chest, a quickened heartbeat, or a sudden stillness that floods the entire body. These experiences are difficult to articulate, yet they are vividly real and spatially anchored in bodily experience. This review examines the emerging method of body mapping, which captures how individuals subjectively localize emotional sensations across the body. Drawing on over two dozen empirical studies, we propose a tripartite framework for understanding the origins of emotional bodily maps: (1) bottom-up physiological signals, (2) top-down behavioral engagement (including motor actions), and (3) conceptual and metaphorical constructions. Crucially, we argue that bodily maps are not mere reflections of physiological monitoring, but expressive interfaces between brain, body, and conceptualization. Because they rely on introspective sensation rather than verbal articulation, bodily maps offer a promising language-independent tool for assessing emotional experience - particularly in cross-cultural research, developmental studies, and clinical contexts where verbal reporting may be limited or unreliable. Ultimately, bodily maps reveal the hidden geography of emotion-those feelings that elude precise definition or verbalization, like being moved beyond words, yet are undeniably real and embodied - offering a compelling window into how emotions are formed, shared, and lived through the body.

q-bio.NC↗

arXiv2024

Body Maps for Feeling of Creativity in Musical Chord Progression

This study investigates how musical stimuli evoke feelings of creativity through predictive mechanisms, while also examining the role of interoceptive bodily sensations, particularly those linked to the heart and stomach regions. Furthermore, we investigate the relationship between interoceptive sensibility and the intensity of the feeling of creativity. By employing body-mapping assessments and emotional evaluations on 353 participants exposed to various chord progressions, we revealed the critical role of heart sensations in eliciting feelings of creativity. Our findings indicate that musical chord progressions characterized by high uncertainty and surprise generated heightened feelings of creativity alongside increased arousal. Notably, heart sensations correlated positively with the feeling of creativity, suggesting the crucial role of interoceptive bodily sensations in the experience of creativity. In contrast, the feelings of beauty and valence were more strongly influenced by predictable, low-uncertainty progressions, suggesting that the feelings of creativity may operate through a somewhat different cognitive mechanism than that of beauty and valence. This study highlights the complex interplay between bodily sensations and feelings of creativity based on predictive processing. By framing creativity within the framework of interoception, our research contributes to a deeper understanding of the emotional and embodied processes that shape the experience of creativity. Future research should explore these relationships to enrich our comprehension of creativity in both artistic endeavors and everyday life.

q-bio.NC↗

arXiv2004

Growth of R-123 Phase Single Crystal Whiskers

Single-crystal whiskers of R1Ba2Cu3Ox (R-123, R= La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu) phase have been successfully grown by the Te- and Ca-doping method. The whiskers were grown from precursor pellets at just below their partial melting (peritectic) temperatures. The nominal composition of the R-123 whiskers is R1+uBa2+vCawCu3Ox (u+v+w=0, w>0) with R and/or Ba sites being substituted by Ca. However, the amount of Te was less than the analytical limit. The critical temperatures of the R-123 whiskers were around 80 K, and among these whiskers those with larger R ionic radii such as Dy, Gd, Eu and Sm require post-annealing in an oxygen atmosphere.

cond-mat.supr-con↗