Hall Effect and Resistivity in Epitaxial MnSi Thin Films Under Ambient and High Pressure

被引:3
作者
Menzel, D. [1 ]
Schroeter, D. [1 ]
Steinki, N. [1 ]
Suellow, S. [1 ]
Scarioni, A. Fernandez [2 ]
Schumacher, H. W. [2 ]
Okuyama, H. [3 ]
Hidaka, H. [3 ]
Amitsuka, H. [3 ]
机构
[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Phys Kondensierten Mat, D-38106 Braunschweig, Germany
[2] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany
[3] Hokkaido Univ, Grad Sch Sci, Sapporo, Hokkaido 0600808, Japan
关键词
Hall effect; hydrostatic pressure; magnetoresistance; skyrmions;
D O I
10.1109/TMAG.2018.2864095
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Thin film MnSi has been epitaxially grown on Si(111) substrate and investigated in terms of magnetoresistance and Hall measurements under applied hydrostatic pressure up to 2.58 GPa. Although the behavior of the thin films is qualitatively similar to bulk material, at a high pressure above 2 GPa, an additional magnetic ordering occurs, resulting in a reduction of the potential scattering by spin fluctuations. This ordering is stabilized at the applied pressure showing visible effects in the magnetotransport data. Comparing the behavior of thin films with the bulk material under pressure, it seems quite likely that this additional ordering is of skyrmionic nature, which has as yet not been unambiguously evidenced in epitaxial B20 thin films on a substrate under ambient pressure.
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页数:4
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