Electronic ground state of MnB\(_{4}\)

Recent studies have dealt with the electronic and magnetic ground state properties of the tetraboride material MnB\(_4\). So far, however, the ground state properties could not be established unambiguously. Therefore, here we present an experimental study on single-crystalline MnB\(_4\) by means of...

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Bibliographic Details
Published inarXiv.org
Main Authors Steinki, N, Winter, J L, D Schulze Grachtrup, Menzel, D, Süllow, S, Knappschneider, A, Albert, B
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 31.10.2016
Subjects
Conductivity
Electrical resistivity
Ground state
Magnetic properties
Sample holders
Single crystals
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Summary:Recent studies have dealt with the electronic and magnetic ground state properties of the tetraboride material MnB\(_4\). So far, however, the ground state properties could not be established unambiguously. Therefore, here we present an experimental study on single-crystalline MnB\(_4\) by means of resistivity and magnetization measurements. For this, we have developed a sample holder that allows four-point ac resistivity measurements on these very small (\(\sim\)\,100\,\(\mu\)m) samples. With our data we establish that the electronic ground state of MnB\(_4\) is intrinsically that of a pseudo-gap system, in agreement with recent band structure calculations. Furthermore, we demonstrate that the material does neither show magnetic order nor a behavior arising from the vicinity to a magnetically ordered state, this way disproving previous claims.
ISSN:2331-8422