### Abstract

We report on the magnetic and magneto-optical properties of the intermetallic alloys Mn_{5}(Ge_{1-x}M_{x})_{3}, where M=Sn, Pb. Generally, these alloys were ordered ferromagnetically at T≥300 K for x<0.3. The structure of Mn_{5}(Ge_{1-x}Sn _{x})_{3} remains in the hexagonal Mn_{5}Si _{3}(hP16) phase up to x=0.25 and then changes to Ni_{2}In (hP6) as x approaches 1. The magnetization and Curie temperature of these alloys is largest for small x and reach a minimum value near x=0.5. The room temperature Polar Kerr rotation, however, increases from -0.06°at x=0 to maximum value of -0.12°at x=0.1 before decreasing toward zero for x≳0.3. The Mn _{5}(Ge_{1-x}Pb_{x})_{3} samples show a Mn _{5}Si_{3} structure with ferromagnetic behavior for x≤0.3, and varying structure with rapidly decreasing magnetization above x=0.3. The magnetic behavior observed was complex for x≥0.3. The Kerr rotation of the Pb-doped alloys in the ferromagnetic region monotonically decreases from -0.06°to zero at x≊0.3.

Original language | English (US) |
---|---|

Pages (from-to) | 6354-6356 |

Number of pages | 3 |

Journal | Journal of Applied Physics |

Volume | 75 |

Issue number | 10 |

DOIs | |

State | Published - Dec 1 1994 |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

_{5}(Ge

_{1-x}M

_{x})

_{3}alloys with M=Sn, Pb.

*Journal of Applied Physics*,

*75*(10), 6354-6356. https://doi.org/10.1063/1.355401

**Magnetic and magneto-optical properties of Mn _{5}(Ge _{1-x}M_{x})_{3} alloys with M=Sn, Pb.** / Zhang, Y.; Runge, A. P.; Shan, Z. S.; Sellmyer, D. J.

Research output: Contribution to journal › Article

_{5}(Ge

_{1-x}M

_{x})

_{3}alloys with M=Sn, Pb',

*Journal of Applied Physics*, vol. 75, no. 10, pp. 6354-6356. https://doi.org/10.1063/1.355401

_{5}(Ge

_{1-x}M

_{x})

_{3}alloys with M=Sn, Pb. Journal of Applied Physics. 1994 Dec 1;75(10):6354-6356. https://doi.org/10.1063/1.355401

}

TY - JOUR

T1 - Magnetic and magneto-optical properties of Mn5(Ge 1-xMx)3 alloys with M=Sn, Pb

AU - Zhang, Y.

AU - Runge, A. P.

AU - Shan, Z. S.

AU - Sellmyer, D. J.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - We report on the magnetic and magneto-optical properties of the intermetallic alloys Mn5(Ge1-xMx)3, where M=Sn, Pb. Generally, these alloys were ordered ferromagnetically at T≥300 K for x<0.3. The structure of Mn5(Ge1-xSn x)3 remains in the hexagonal Mn5Si 3(hP16) phase up to x=0.25 and then changes to Ni2In (hP6) as x approaches 1. The magnetization and Curie temperature of these alloys is largest for small x and reach a minimum value near x=0.5. The room temperature Polar Kerr rotation, however, increases from -0.06°at x=0 to maximum value of -0.12°at x=0.1 before decreasing toward zero for x≳0.3. The Mn 5(Ge1-xPbx)3 samples show a Mn 5Si3 structure with ferromagnetic behavior for x≤0.3, and varying structure with rapidly decreasing magnetization above x=0.3. The magnetic behavior observed was complex for x≥0.3. The Kerr rotation of the Pb-doped alloys in the ferromagnetic region monotonically decreases from -0.06°to zero at x≊0.3.

AB - We report on the magnetic and magneto-optical properties of the intermetallic alloys Mn5(Ge1-xMx)3, where M=Sn, Pb. Generally, these alloys were ordered ferromagnetically at T≥300 K for x<0.3. The structure of Mn5(Ge1-xSn x)3 remains in the hexagonal Mn5Si 3(hP16) phase up to x=0.25 and then changes to Ni2In (hP6) as x approaches 1. The magnetization and Curie temperature of these alloys is largest for small x and reach a minimum value near x=0.5. The room temperature Polar Kerr rotation, however, increases from -0.06°at x=0 to maximum value of -0.12°at x=0.1 before decreasing toward zero for x≳0.3. The Mn 5(Ge1-xPbx)3 samples show a Mn 5Si3 structure with ferromagnetic behavior for x≤0.3, and varying structure with rapidly decreasing magnetization above x=0.3. The magnetic behavior observed was complex for x≥0.3. The Kerr rotation of the Pb-doped alloys in the ferromagnetic region monotonically decreases from -0.06°to zero at x≊0.3.

UR - http://www.scopus.com/inward/record.url?scp=0028442129&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028442129&partnerID=8YFLogxK

U2 - 10.1063/1.355401

DO - 10.1063/1.355401

M3 - Article

AN - SCOPUS:0028442129

VL - 75

SP - 6354

EP - 6356

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 10

ER -