<p>Block-shaped crystals of Mn<InlineEquation ID="IEq7"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq1.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="23" /> </InlineMediaObject> <EquationSource Format="TEX">$_{0.75}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow> <mn>0.75</mn> </mrow> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>Co<InlineEquation ID="IEq8"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq2.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="23" /> </InlineMediaObject> <EquationSource Format="TEX">$_{2.25}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow> <mn>2.25</mn> </mrow> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>BO<InlineEquation ID="IEq9"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq3.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">$_{5}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mn>5</mn> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>, composed of aggregates of small single crystallites, were grown via the flux method using a Bi<InlineEquation ID="IEq10"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq10.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">$_{2}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mn>2</mn> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>Mo<InlineEquation ID="IEq11"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq11.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">$_{3}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mn>3</mn> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>O<InlineEquation ID="IEq12"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq12.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="13" /> </InlineMediaObject> <EquationSource Format="TEX">$_{12}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mn>12</mn> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>-based flux modified with Na<InlineEquation ID="IEq13"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq10.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">$_{2}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mn>2</mn> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>CO<InlineEquation ID="IEq14"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq11.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">$_{3}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mn>3</mn> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>. The crystals were powdered prior to analysis. X-ray powder diffraction revealed a <i>Pbam</i> space group with lattice parameters <InlineEquation ID="IEq15"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq15.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="97" /> </InlineMediaObject> <EquationSource Format="TEX">$a = 9.2637(6)$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>a</mi> <mo>=</mo> <mn>9.2637</mn> <mo stretchy="false">(</mo> <mn>6</mn> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> Å, <InlineEquation ID="IEq16"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq16.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="103" /> </InlineMediaObject> <EquationSource Format="TEX">$b = 12.3030(5)$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>b</mi> <mo>=</mo> <mn>12.3030</mn> <mo stretchy="false">(</mo> <mn>5</mn> <mo stretchy="false">)</mo> </mrow> </math></EquationSource> </InlineEquation> Å, and <InlineEquation ID="IEq17"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq17.gif" Format="GIF" Height="22" Rendition="HTML" Resolution="72" Type="Linedraw" Width="110" /> </InlineMediaObject> <EquationSource Format="TEX">$c = 3.0344(1)\,\text{\AA }$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>c</mi> <mo>=</mo> <mn>3.0344</mn> <mo stretchy="false">(</mo> <mn>1</mn> <mo stretchy="false">)</mo> <mspace width="0.166667em" /> <mtext>Å</mtext> </mrow> </math></EquationSource> </InlineEquation>. X-ray diffraction and temperature-dependent measurements of AC and DC magnetization were performed on the Mn<InlineEquation ID="IEq18"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq1.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="23" /> </InlineMediaObject> <EquationSource Format="TEX">$_{0.75}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow> <mn>0.75</mn> </mrow> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>Co<InlineEquation ID="IEq19"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq2.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="23" /> </InlineMediaObject> <EquationSource Format="TEX">$_{2.25}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mrow> <mn>2.25</mn> </mrow> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation>BO<InlineEquation ID="IEq20"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10948_2025_6999_Article_IEq3.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">$_{5}$</EquationSource> <EquationSource Format="MATHML"><math> <mmultiscripts> <mrow /> <mn>5</mn> <mrow /> </mmultiscripts> </math></EquationSource> </InlineEquation> powder. Measurements of AC and DC magnetization demonstrate a spin-glass transition near 42.5 K.</p>

Spin-Glass Transition in Mn$_{0.75}$Co$_{2.25}$BO$_{5}$ Compound

期刊论文
发表日期：

2025年5月26日

查看全文

D. V. Popov,
V. A. Shustov,
R. G. Batulin,
M. A. Cherosov,
E. M. Moshkina,
R. M. Eremina

摘要

Block-shaped crystals of Mn $_{0.75}$ $_{0.75}$ Co $_{2.25}$ $_{2.25}$ BO $_{5}$ $_{5}$ , composed of aggregates of small single crystallites, were grown via the flux method using a Bi $_{2}$ $_{2}$ Mo $_{3}$ $_{3}$ O $_{12}$ $_{12}$ -based flux modified with Na $_{2}$ $_{2}$ CO $_{3}$ $_{3}$ . The crystals were powdered prior to analysis. X-ray powder diffraction revealed a Pbam space group with lattice parameters $a = 9.2637(6)$ $a = 9.2637 (6)$ Å, $b = 12.3030(5)$ $b = 12.3030 (5)$ Å, and $c = 3.0344(1)\,\text{\AA }$ $c = 3.0344 (1) Å$ . X-ray diffraction and temperature-dependent measurements of AC and DC magnetization were performed on the Mn $_{0.75}$ $_{0.75}$ Co $_{2.25}$ $_{2.25}$ BO $_{5}$ $_{5}$ powder. Measurements of AC and DC magnetization demonstrate a spin-glass transition near 42.5 K.

Spin-Glass Transition in Mn\(_{0.75}\)Co\(_{2.25}\)BO\(_{5}\) Compound

摘要